TY  - JOUR
AU  - Karličić, Nikola
AU  - Petrović, Milan M.
AU  - Radić, Dejan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4670
AB  - This paper will validate two basic concepts of numerical models for prediction of
pressure change along the transport pipeline in the case of long distance and
high capacity lignite ash pneumatic conveying. Application of various friction
factor correlations and variation of given parameter, led to the total of fourteen
different numerical models and program codes in FORTRAN. The input data for
numerical models are based on comprehensive experimental research of high ca-
pacity and long distance Kolubara lignite fly ash pneumatic conveying system
within 620 MWe thermal power plant unit under operating conditions. Numerical
simulation results are validated against experimental data and subjected to sta-
tistical analysis methods. The functional dependence obtained by the least
squares method was evaluated using mean squared deviation and correlation ra-
tio. The predicted pressure changes show the best agreement, with the measured
decrease of pressure amplitudes along the transport pipelines, for the model
based on the momentum balance of air-ash mixture flow and friction factor cor-
relation given by Dogin and Lebedev for the parameter A = 1.4∙10–6. This model
achieved the best correlation ratio of 93.99% for Pipeline 1 and 91.33% for
Pipeline 2, as well as the best mean squared deviation of 9.58% for Pipeline 1
and 13.66% for Pipeline 2. Also, the fanning friction factor values are fully con-
sistent with previously examined cases available in the literature. Numerical sim-
ulation model can be used for prediction of the ash pneumatic conveying capacity and pressure drop for the specified transport pipeline.
PB  - Beograd : Institut za nuklearne nauke Vinča
T2  - Thermal Science
T1  - Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying
EP  - 45
IS  - 1A
SP  - 33
VL  - 27
DO  - 10.2298/TSCI2301033K
ER  - 

@article{
author = "Karličić, Nikola and Petrović, Milan M. and Radić, Dejan",
year = "2023",
abstract = "This paper will validate two basic concepts of numerical models for prediction of
pressure change along the transport pipeline in the case of long distance and
high capacity lignite ash pneumatic conveying. Application of various friction
factor correlations and variation of given parameter, led to the total of fourteen
different numerical models and program codes in FORTRAN. The input data for
numerical models are based on comprehensive experimental research of high ca-
pacity and long distance Kolubara lignite fly ash pneumatic conveying system
within 620 MWe thermal power plant unit under operating conditions. Numerical
simulation results are validated against experimental data and subjected to sta-
tistical analysis methods. The functional dependence obtained by the least
squares method was evaluated using mean squared deviation and correlation ra-
tio. The predicted pressure changes show the best agreement, with the measured
decrease of pressure amplitudes along the transport pipelines, for the model
based on the momentum balance of air-ash mixture flow and friction factor cor-
relation given by Dogin and Lebedev for the parameter A = 1.4∙10–6. This model
achieved the best correlation ratio of 93.99% for Pipeline 1 and 91.33% for
Pipeline 2, as well as the best mean squared deviation of 9.58% for Pipeline 1
and 13.66% for Pipeline 2. Also, the fanning friction factor values are fully con-
sistent with previously examined cases available in the literature. Numerical sim-
ulation model can be used for prediction of the ash pneumatic conveying capacity and pressure drop for the specified transport pipeline.",
publisher = "Beograd : Institut za nuklearne nauke Vinča",
journal = "Thermal Science",
title = "Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying",
pages = "45-33",
number = "1A",
volume = "27",
doi = "10.2298/TSCI2301033K"
}

Karličić, N., Petrović, M. M.,& Radić, D.. (2023). Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying. in Thermal Science
Beograd : Institut za nuklearne nauke Vinča., 27(1A), 33-45.
https://doi.org/10.2298/TSCI2301033K

Karličić N, Petrović MM, Radić D. Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying. in Thermal Science. 2023;27(1A):33-45.
doi:10.2298/TSCI2301033K .

Karličić, Nikola, Petrović, Milan M., Radić, Dejan, "Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying" in Thermal Science, 27, no. 1A (2023):33-45,
https://doi.org/10.2298/TSCI2301033K . .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Pijović, Milena
AU  - Waisi, Hadi
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3420
AB  - In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser-Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO(2)gases) and charification of the solid residue (increased the bio-char yield).
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)
EP  - 579
IS  - 2
SP  - 565
VL  - 142
DO  - 10.1007/s10973-020-09307-5
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Pijović, Milena and Waisi, Hadi and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser-Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO(2)gases) and charification of the solid residue (increased the bio-char yield).",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)",
pages = "579-565",
number = "2",
volume = "142",
doi = "10.1007/s10973-020-09307-5"
}

Manić, N., Janković, B., Pijović, M., Waisi, H., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 142(2), 565-579.
https://doi.org/10.1007/s10973-020-09307-5

Manić N, Janković B, Pijović M, Waisi H, Dodevski V, Stojiljković D, Jovanović V. Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry. 2020;142(2):565-579.
doi:10.1007/s10973-020-09307-5 .

Manić, Nebojša, Janković, Bojan, Pijović, Milena, Waisi, Hadi, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):565-579,
https://doi.org/10.1007/s10973-020-09307-5 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3403
AB  - Slow pyrolysis characteristics of agricultural residue feedstocks (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA-TG-DTG-DSC), coupled with mass spectrometry (MS). Thermal decomposition of agricultural residues was divided into three stages, corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of samples are due to differences in their composition. The MS results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that hazelnut shells could be a good combustion fuel, since during its pyrolysis at high temperature, more gaseous products compared to other systems are very favored. For hazelnut shell pyrolysis, the CO2 can be used on the large scale for the production of CO-rich syngas.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA-DSC-MS techniques
EP  - 3106
IS  - 5
SP  - 3091
VL  - 139
DO  - 10.1007/s10973-019-08733-4
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Stojiljković, Dragoslava",
year = "2020",
abstract = "Slow pyrolysis characteristics of agricultural residue feedstocks (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA-TG-DTG-DSC), coupled with mass spectrometry (MS). Thermal decomposition of agricultural residues was divided into three stages, corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of samples are due to differences in their composition. The MS results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that hazelnut shells could be a good combustion fuel, since during its pyrolysis at high temperature, more gaseous products compared to other systems are very favored. For hazelnut shell pyrolysis, the CO2 can be used on the large scale for the production of CO-rich syngas.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA-DSC-MS techniques",
pages = "3106-3091",
number = "5",
volume = "139",
doi = "10.1007/s10973-019-08733-4"
}

Janković, B., Manić, N.,& Stojiljković, D.. (2020). The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA-DSC-MS techniques. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 139(5), 3091-3106.
https://doi.org/10.1007/s10973-019-08733-4

Janković B, Manić N, Stojiljković D. The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA-DSC-MS techniques. in Journal of Thermal Analysis and Calorimetry. 2020;139(5):3091-3106.
doi:10.1007/s10973-019-08733-4 .

Janković, Bojan, Manić, Nebojša, Stojiljković, Dragoslava, "The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA-DSC-MS techniques" in Journal of Thermal Analysis and Calorimetry, 139, no. 5 (2020):3091-3106,
https://doi.org/10.1007/s10973-019-08733-4 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Radojević, Miloš
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3353
AB  - The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O-2/Ar) and different oxygen concentrations (O-2/Ar = 20:80% and O-2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O-2/Ar = 50:50% to O-2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 degrees C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O-2/Ar = 50:50% ratio compared with O-2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 degrees C min(-1)). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (alpha), especially in devolatilization and combustion of volatiles reaction stages. Large variation inEis attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser-Suzuki function was applied. It was shown that Fraser-Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selectednth-order reaction model.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere
EP  - 976
IS  - 2
SP  - 953
VL  - 142
DO  - 10.1007/s10973-019-09154-z
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Radojević, Miloš and Stojiljković, Dragoslava",
year = "2020",
abstract = "The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O-2/Ar) and different oxygen concentrations (O-2/Ar = 20:80% and O-2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O-2/Ar = 50:50% to O-2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 degrees C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O-2/Ar = 50:50% ratio compared with O-2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 degrees C min(-1)). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (alpha), especially in devolatilization and combustion of volatiles reaction stages. Large variation inEis attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser-Suzuki function was applied. It was shown that Fraser-Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selectednth-order reaction model.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere",
pages = "976-953",
number = "2",
volume = "142",
doi = "10.1007/s10973-019-09154-z"
}

Janković, B., Manić, N., Dodevski, V., Radojević, M.,& Stojiljković, D.. (2020). Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 142(2), 953-976.
https://doi.org/10.1007/s10973-019-09154-z

Janković B, Manić N, Dodevski V, Radojević M, Stojiljković D. Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry. 2020;142(2):953-976.
doi:10.1007/s10973-019-09154-z .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Radojević, Miloš, Stojiljković, Dragoslava, "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):953-976,
https://doi.org/10.1007/s10973-019-09154-z . .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3341
AB  - Apricot kernel shells are naturally available source of biomass with potential for conversion to clean energy through a thermo-chemical process such as pyrolysis. To facilitate further process development, an advanced mathematical model which represents the process kinetics is developed and validated on the thermal decomposition studies using simultaneous thermal analysis, over a temperature range of 30-900 degrees C, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), under argon atmosphere. Model-free analysis and numerically developed methods were utilized for determination of effective activation energies, pre-exponential factors and the fractional contribution. A novel approach is introduced in order to determine actual pseudo-components of studied biomass that are included in its composition. The comparative study of the obtained kinetic results was also presented. The results obtained strongly indicated that the pseudo-component reaction modelling method could be employed to predict the experimental devolatilization rate and biomass composition with a high likelihood of success.
PB  - Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb
T2  - Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes
T1  - Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis
EP  - 787
IS  - 4
SP  - 766
VL  - 8
DO  - 10.13044/j.sdewes.d7.0307
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "Apricot kernel shells are naturally available source of biomass with potential for conversion to clean energy through a thermo-chemical process such as pyrolysis. To facilitate further process development, an advanced mathematical model which represents the process kinetics is developed and validated on the thermal decomposition studies using simultaneous thermal analysis, over a temperature range of 30-900 degrees C, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), under argon atmosphere. Model-free analysis and numerically developed methods were utilized for determination of effective activation energies, pre-exponential factors and the fractional contribution. A novel approach is introduced in order to determine actual pseudo-components of studied biomass that are included in its composition. The comparative study of the obtained kinetic results was also presented. The results obtained strongly indicated that the pseudo-component reaction modelling method could be employed to predict the experimental devolatilization rate and biomass composition with a high likelihood of success.",
publisher = "Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb",
journal = "Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes",
title = "Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis",
pages = "787-766",
number = "4",
volume = "8",
doi = "10.13044/j.sdewes.d7.0307"
}

Manić, N., Janković, B., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis. in Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes
Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb., 8(4), 766-787.
https://doi.org/10.13044/j.sdewes.d7.0307

Manić N, Janković B, Dodevski V, Stojiljković D, Jovanović V. Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis. in Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes. 2020;8(4):766-787.
doi:10.13044/j.sdewes.d7.0307 .

Manić, Nebojša, Janković, Bojan, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis" in Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes, 8, no. 4 (2020):766-787,
https://doi.org/10.13044/j.sdewes.d7.0307 . .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Waisi, Hadi
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3319
AB  - Advanced distributed reactivity model for static pyrolysis of corn stover was proposed. It was found that at the lowest operating temperature (180 degrees C), pyrolysis process was governed by autocatalytic and non-autocatalytic reactions which occur simultaneously. With an increasing of the operating temperature above 180 degrees C, the amplifying of acceleratory behavior of the process was observed, where at 270 degrees C a fairly rapid surface reactions dominate. It was established that surface reaction geometry activities become dominant at highest operating temperature. It was found that retention of the apparent activation energy (E-a) at low level probably originates from mineral content linked to ash, which has harmful effect on volatiles yield. Based on estimated characteristic features of reactivity distribution, it was concluded that with an increasing of operating temperature we have a reduction in a char yield, and an increase in gas yield. Proposed model enables identification of chemical compounds that first undergoes in decomposition during pyrolysis.
PB  - Univerzitet u Kragujevcu - Prirodno-matematički fakultet, Kragujevac
T2  - Match-Communications in Mathematical and in Computer Chemistry
T1  - Advanced Distributed Reactivity Model for the Static Pyrolysis of Corn Stover Feedstock
EP  - 130
IS  - 1
SP  - 85
VL  - 84
UR  - https://hdl.handle.net/21.15107/rcub_machinery_3319
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Waisi, Hadi and Stojiljković, Dragoslava and Radojević, Miloš",
year = "2020",
abstract = "Advanced distributed reactivity model for static pyrolysis of corn stover was proposed. It was found that at the lowest operating temperature (180 degrees C), pyrolysis process was governed by autocatalytic and non-autocatalytic reactions which occur simultaneously. With an increasing of the operating temperature above 180 degrees C, the amplifying of acceleratory behavior of the process was observed, where at 270 degrees C a fairly rapid surface reactions dominate. It was established that surface reaction geometry activities become dominant at highest operating temperature. It was found that retention of the apparent activation energy (E-a) at low level probably originates from mineral content linked to ash, which has harmful effect on volatiles yield. Based on estimated characteristic features of reactivity distribution, it was concluded that with an increasing of operating temperature we have a reduction in a char yield, and an increase in gas yield. Proposed model enables identification of chemical compounds that first undergoes in decomposition during pyrolysis.",
publisher = "Univerzitet u Kragujevcu - Prirodno-matematički fakultet, Kragujevac",
journal = "Match-Communications in Mathematical and in Computer Chemistry",
title = "Advanced Distributed Reactivity Model for the Static Pyrolysis of Corn Stover Feedstock",
pages = "130-85",
number = "1",
volume = "84",
url = "https://hdl.handle.net/21.15107/rcub_machinery_3319"
}

Manić, N., Janković, B., Waisi, H., Stojiljković, D.,& Radojević, M.. (2020). Advanced Distributed Reactivity Model for the Static Pyrolysis of Corn Stover Feedstock. in Match-Communications in Mathematical and in Computer Chemistry
Univerzitet u Kragujevcu - Prirodno-matematički fakultet, Kragujevac., 84(1), 85-130.
https://hdl.handle.net/21.15107/rcub_machinery_3319

Manić N, Janković B, Waisi H, Stojiljković D, Radojević M. Advanced Distributed Reactivity Model for the Static Pyrolysis of Corn Stover Feedstock. in Match-Communications in Mathematical and in Computer Chemistry. 2020;84(1):85-130.
https://hdl.handle.net/21.15107/rcub_machinery_3319 .

Manić, Nebojša, Janković, Bojan, Waisi, Hadi, Stojiljković, Dragoslava, Radojević, Miloš, "Advanced Distributed Reactivity Model for the Static Pyrolysis of Corn Stover Feedstock" in Match-Communications in Mathematical and in Computer Chemistry, 84, no. 1 (2020):85-130,
https://hdl.handle.net/21.15107/rcub_machinery_3319 .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3318
AB  - As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) - differential thermal analysis (DTA) - mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), over temperature range 30-900 degrees C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (u), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions
EP  - 60
SP  - 39
VL  - 90
DO  - 10.1007/978-3-030-30853-7_3
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) - differential thermal analysis (DTA) - mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), over temperature range 30-900 degrees C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (u), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions",
pages = "60-39",
volume = "90",
doi = "10.1007/978-3-030-30853-7_3"
}

Manić, N., Janković, B., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 39-60.
https://doi.org/10.1007/978-3-030-30853-7_3

Manić N, Janković B, Dodevski V, Stojiljković D, Jovanović V. The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:39-60.
doi:10.1007/978-3-030-30853-7_3 .

Manić, Nebojša, Janković, Bojan, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):39-60,
https://doi.org/10.1007/978-3-030-30853-7_3 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3306
AB  - During the utilization of coal in large power plants, one of the major logistical issues is related to spontaneous ignition of the coal. This characteristic of coal depends on the rank and type of the coal, the content of the moisture and volatile matter as well as particle size distribution. This paper presents the novel approach for determination of spontaneous ignition potential of the coal developed as the internal laboratory experimental method. The experimental tests were performed by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) of tested samples at five different heating rates: 3, 5, 7, 10 and 20 K min(-1) under an air atmosphere. The TGA results were used for determination of tangent slope of the mass loss rate curves in the zone of the release of volatiles at considered heating rates for all coal samples. The linear interpolation of the data obtained by performed tangent slope analysis and heating rates provides the straight line unique for each tested sample. According to the standard method, the slope of the obtained straight line is defined as thermogravimetric index of spontaneous ignition (TG(spi)). In addition, a new formula for determination of TG(spi) index was provided. Three different coal samples were analyzed and classified according to the spontaneous ignition potential, based on the obtained values for TG(spi) by standard procedure and also using a newly proposed method. By varying the gradient of linear dependence of self-heating coefficient against reference temperatures (T-ref,T-i), the mass and heat transfer limitations for different coals were discussed.
PB  - Elsevier Science Inc, New York
T2  - Combustion and Flame
T1  - The assessment of spontaneous ignition potential of coals using TGA-DTG technique
EP  - 43
SP  - 32
VL  - 211
DO  - 10.1016/j.combustflame.2019.09.020
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "During the utilization of coal in large power plants, one of the major logistical issues is related to spontaneous ignition of the coal. This characteristic of coal depends on the rank and type of the coal, the content of the moisture and volatile matter as well as particle size distribution. This paper presents the novel approach for determination of spontaneous ignition potential of the coal developed as the internal laboratory experimental method. The experimental tests were performed by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) of tested samples at five different heating rates: 3, 5, 7, 10 and 20 K min(-1) under an air atmosphere. The TGA results were used for determination of tangent slope of the mass loss rate curves in the zone of the release of volatiles at considered heating rates for all coal samples. The linear interpolation of the data obtained by performed tangent slope analysis and heating rates provides the straight line unique for each tested sample. According to the standard method, the slope of the obtained straight line is defined as thermogravimetric index of spontaneous ignition (TG(spi)). In addition, a new formula for determination of TG(spi) index was provided. Three different coal samples were analyzed and classified according to the spontaneous ignition potential, based on the obtained values for TG(spi) by standard procedure and also using a newly proposed method. By varying the gradient of linear dependence of self-heating coefficient against reference temperatures (T-ref,T-i), the mass and heat transfer limitations for different coals were discussed.",
publisher = "Elsevier Science Inc, New York",
journal = "Combustion and Flame",
title = "The assessment of spontaneous ignition potential of coals using TGA-DTG technique",
pages = "43-32",
volume = "211",
doi = "10.1016/j.combustflame.2019.09.020"
}

Janković, B., Manić, N., Stojiljković, D.,& Jovanović, V.. (2020). The assessment of spontaneous ignition potential of coals using TGA-DTG technique. in Combustion and Flame
Elsevier Science Inc, New York., 211, 32-43.
https://doi.org/10.1016/j.combustflame.2019.09.020

Janković B, Manić N, Stojiljković D, Jovanović V. The assessment of spontaneous ignition potential of coals using TGA-DTG technique. in Combustion and Flame. 2020;211:32-43.
doi:10.1016/j.combustflame.2019.09.020 .

Janković, Bojan, Manić, Nebojša, Stojiljković, Dragoslava, Jovanović, Vladimir, "The assessment of spontaneous ignition potential of coals using TGA-DTG technique" in Combustion and Flame, 211 (2020):32-43,
https://doi.org/10.1016/j.combustflame.2019.09.020 . .

TY  - CONF
AU  - Pijović, Milena
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
AU  - Manić, Nebojša
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3300
AB  - Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 degrees C min(-1)) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H-2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues
EP  - 165
SP  - 139
VL  - 90
DO  - 10.1007/978-3-030-30853-7_9
ER  - 

@conference{
author = "Pijović, Milena and Janković, Bojan and Stojiljković, Dragoslava and Radojević, Miloš and Manić, Nebojša",
year = "2020",
abstract = "Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 degrees C min(-1)) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H-2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues",
pages = "165-139",
volume = "90",
doi = "10.1007/978-3-030-30853-7_9"
}

Pijović, M., Janković, B., Stojiljković, D., Radojević, M.,& Manić, N.. (2020). Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 139-165.
https://doi.org/10.1007/978-3-030-30853-7_9

Pijović M, Janković B, Stojiljković D, Radojević M, Manić N. Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:139-165.
doi:10.1007/978-3-030-30853-7_9 .

Pijović, Milena, Janković, Bojan, Stojiljković, Dragoslava, Radojević, Miloš, Manić, Nebojša, "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):139-165,
https://doi.org/10.1007/978-3-030-30853-7_9 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Smiciklas, Ivana
AU  - Manić, Nebojša
AU  - Mraković, Ana
AU  - Mandić, Milica
AU  - Veljović, Đorđe
AU  - Jović, Mihajlo
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3397
AB  - Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 - 0.125 mm, 0.125-0.2 mm, and 0.2-1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 degrees C min(-1)). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors
VL  - 686
DO  - 10.1016/j.tca.2020.178568
ER  - 

@article{
author = "Janković, Bojan and Smiciklas, Ivana and Manić, Nebojša and Mraković, Ana and Mandić, Milica and Veljović, Đorđe and Jović, Mihajlo",
year = "2020",
abstract = "Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 - 0.125 mm, 0.125-0.2 mm, and 0.2-1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 degrees C min(-1)). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors",
volume = "686",
doi = "10.1016/j.tca.2020.178568"
}

Janković, B., Smiciklas, I., Manić, N., Mraković, A., Mandić, M., Veljović, Đ.,& Jović, M.. (2020). Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta
Elsevier, Amsterdam., 686.
https://doi.org/10.1016/j.tca.2020.178568

Janković B, Smiciklas I, Manić N, Mraković A, Mandić M, Veljović Đ, Jović M. Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta. 2020;686.
doi:10.1016/j.tca.2020.178568 .

Janković, Bojan, Smiciklas, Ivana, Manić, Nebojša, Mraković, Ana, Mandić, Milica, Veljović, Đorđe, Jović, Mihajlo, "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors" in Thermochimica Acta, 686 (2020),
https://doi.org/10.1016/j.tca.2020.178568 . .

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Zivković, Nikola V.
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
AU  - Erić, Milić D.
AU  - Marković, Zoran J.
AU  - Cvetinović, Dejan
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3239
AB  - The anthropogenic emission of GHG especially CO has to be limited and reduced due to their impact on global warming and climate change. Combustion of fossil fuels in the energy sector has a dominant share in total GHG emissions. In order to reduce GHG emission, European Union established a scheme for GHG allowance trading within the community, and the implementation of the European Union emission trading scheme, which is a key to GHG reduction in a cost-effective way. An important part of emission trading scheme is prescribed methodology for monitoring, reporting, and verification of the emission of GHG including characterization of the local fuels combusted by the energy sector. This paper presents lignite characteristics from open-pit mine Borovica-Pljevlja, which has highest coal production in Montenegro (>1.2 Mt per year), including evaluation of its carbon emission factor based on the laboratory analysis of 72 coal samples. Testing of the samples included proximate and ultimate analysis, as well as, net calorific value determination. In accordance with the obtained results, linear correlations between net calorific value and combustible matter content, carbon content and combustible matter content, hydrogen content and combustible matter content, carbon content and net calorific value, were established. Finally, the non-linear analytical correlation between carbon emission factor and net calorific value for Pljevlja lignite was proposed, as a base for the precise calculation of CO emission evaluation.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Pljevlja lignite carbon emission charateristics
EP  - S1531
SP  - S1523
VL  - 23
DO  - 10.2298/TSCI180726288S
ER  - 

@article{
author = "Stefanović, Predrag Lj. and Zivković, Nikola V. and Stojiljković, Dragoslava and Jovanović, Vladimir and Erić, Milić D. and Marković, Zoran J. and Cvetinović, Dejan",
year = "2019",
abstract = "The anthropogenic emission of GHG especially CO has to be limited and reduced due to their impact on global warming and climate change. Combustion of fossil fuels in the energy sector has a dominant share in total GHG emissions. In order to reduce GHG emission, European Union established a scheme for GHG allowance trading within the community, and the implementation of the European Union emission trading scheme, which is a key to GHG reduction in a cost-effective way. An important part of emission trading scheme is prescribed methodology for monitoring, reporting, and verification of the emission of GHG including characterization of the local fuels combusted by the energy sector. This paper presents lignite characteristics from open-pit mine Borovica-Pljevlja, which has highest coal production in Montenegro (>1.2 Mt per year), including evaluation of its carbon emission factor based on the laboratory analysis of 72 coal samples. Testing of the samples included proximate and ultimate analysis, as well as, net calorific value determination. In accordance with the obtained results, linear correlations between net calorific value and combustible matter content, carbon content and combustible matter content, hydrogen content and combustible matter content, carbon content and net calorific value, were established. Finally, the non-linear analytical correlation between carbon emission factor and net calorific value for Pljevlja lignite was proposed, as a base for the precise calculation of CO emission evaluation.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Pljevlja lignite carbon emission charateristics",
pages = "S1531-S1523",
volume = "23",
doi = "10.2298/TSCI180726288S"
}

Stefanović, P. Lj., Zivković, N. V., Stojiljković, D., Jovanović, V., Erić, M. D., Marković, Z. J.,& Cvetinović, D.. (2019). Pljevlja lignite carbon emission charateristics. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23, S1523-S1531.
https://doi.org/10.2298/TSCI180726288S

Stefanović PL, Zivković NV, Stojiljković D, Jovanović V, Erić MD, Marković ZJ, Cvetinović D. Pljevlja lignite carbon emission charateristics. in Thermal Science. 2019;23:S1523-S1531.
doi:10.2298/TSCI180726288S .

Stefanović, Predrag Lj., Zivković, Nikola V., Stojiljković, Dragoslava, Jovanović, Vladimir, Erić, Milić D., Marković, Zoran J., Cvetinović, Dejan, "Pljevlja lignite carbon emission charateristics" in Thermal Science, 23 (2019):S1523-S1531,
https://doi.org/10.2298/TSCI180726288S . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Radović, Ivana
AU  - Pijović, Milena
AU  - Katnić, Djurica
AU  - Tasić, Gvozden
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3000
AB  - This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 degrees C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m(2) g(-1)). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization
VL  - 236
DO  - 10.1016/j.jclepro.2019.117614
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Radović, Ivana and Pijović, Milena and Katnić, Djurica and Tasić, Gvozden",
year = "2019",
abstract = "This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 degrees C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m(2) g(-1)). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization",
volume = "236",
doi = "10.1016/j.jclepro.2019.117614"
}

Janković, B., Manić, N., Dodevski, V., Radović, I., Pijović, M., Katnić, D.,& Tasić, G.. (2019). Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 236.
https://doi.org/10.1016/j.jclepro.2019.117614

Janković B, Manić N, Dodevski V, Radović I, Pijović M, Katnić D, Tasić G. Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production. 2019;236.
doi:10.1016/j.jclepro.2019.117614 .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Radović, Ivana, Pijović, Milena, Katnić, Djurica, Tasić, Gvozden, "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization" in Journal of Cleaner Production, 236 (2019),
https://doi.org/10.1016/j.jclepro.2019.117614 . .

TY  - THES
AU  - Karličić, Nikola
PY  - 2019
UR  - https://nardus.mpn.gov.rs/handle/123456789/11470
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6895
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20216/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=515006627
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/63
AB  - Velika količina pepela nastaje kao nusproizvod sagorevanja uglja u termoenergetskim postrojenjima, čiji pravilan rad zahteva sistem pneumatskog transporta za njegovo efikasno odvođenje. Odlaganje pepela na deponije predstavlja teret za životnu sredinu. Poznavanje fizičko-hemijskih i aeracionih karakteristika pepela je preduslov za precizno predviđanje ponašanja sistema pneumatskog transporta pepela iz termoelektrana velikog kapaciteta i ocene moguće primene ovog nusproizvoda u različitim industrijskim granama. U okviru ove disertacije razmatrane su karakteristike pepela lignita Kolubara iz termoelektrane snage 620 MWe. Ispitivanjima fizičko-hemijskih karakteristika uzoraka zaključeno je da postoji izrazita heterogenost pepela, što naročito utiče na njegove aeracione karakteristike. Međusobne zavisnosti fizičkih i aeracionih karakteristika pokazale su da za ispitivani pepeo nije moguće jednoznačno definisati režim pneumatskog transporta. S obzirom na činjenicu da je ispitivani pepeo na granici ugušćene i razređene faze, peremabilnost pepela, koja je značajan parametar za definisanje pneumatskog transporta, pokazuje da su neophodne brzine transporta u granicama od 10 do 15 m/s. Razvijen je programski kod za dva numerička modela proračuna pada pritiska pri pneumatskom transportu pepela velikog kapaciteta i velike dužine. Verifikacija modela izvedena je na osnovu eksperimentalnih ispitivanja pneumatskog transporta pepela kapaciteta 120 t/h i dužine 600 m. Model zasnovan na korelaciji Dogina i Lebedeva, gde je parametar A=1,4∙10-6, daje odlično slaganje sa eksperimentalnim podacima, uz korelacioni odnos 93,99% i srednje kvadratno odstupanje 9,58%. Rezultati ove doktorske disertacije imaju veliki naučni i praktični značaj. Predstavljaju dobru osnovu za dalja istraživanja, razmatranje moguće primene ispitivanog pepela, kao i za definisanje optimalnog režima i projektovanje sistema pneumatskog transporta ovog ili sličnog materijala.
AB  - Large volumes of ash are generated as byproduct of coal combustion process in thermoenergetic plants, and their proper operation depends upon efficient pneumatic conveying system to dispose it continuously. Disposing the ash to landfills creates huge environmental burden. Both physico-chemical and aeration characteristics of ash are prerequisite for accurate and reliable behaviour prediction of long distance large capacity pneumatic conveying system as well as for possible utilization consideration. This doctoral dissertation analyzed characteristics of Kolubara lignite ash from a 620 MWe thermal power plant. Physico-chemical characteristics investigation of samples led to conclusion that this ash is extremely heterogeneous material, and that significantly affects its aeration characteristics. Relationship between physical and aeration characteristics of ash showed that unambiguous defining of pneumatic conveying mode is not possible. Considering the fact that this ash belongs to boundary area of dilute and dense phase, ash permeability, as important parameter of pneumatic conveying defining, indicated required transport velocities between 10 to 15 m/s. A computer program code was developed for two numerical models to estimate pressure drop for large capacity long distance ash pneumatic conveying. Model verification was undertaken using experimental data obtained by examination of 120 t/h and 600 m pneumatic conveying of ash. Model based on correlation of Dogin and Lebedev, for parameter A=1,4∙10-6, is in excellent agreement with experimental data, having correlation ratio 93,99% and rootmean- square deviation 9,58%. This doctoral dissertation results are of scientific and practical importance. They offer a good basis for further investigations, considering possible utilization of this ash as well as for defining optimal mode and designing pneumatic conveying system of this or similar material.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Svojstva pepela iz termoelektrana značajna za odlaganje i primenu
T1  - Characteristics of ash from thermal power plants important for disposalund utilization
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11470
ER  - 

@phdthesis{
author = "Karličić, Nikola",
year = "2019",
abstract = "Velika količina pepela nastaje kao nusproizvod sagorevanja uglja u termoenergetskim postrojenjima, čiji pravilan rad zahteva sistem pneumatskog transporta za njegovo efikasno odvođenje. Odlaganje pepela na deponije predstavlja teret za životnu sredinu. Poznavanje fizičko-hemijskih i aeracionih karakteristika pepela je preduslov za precizno predviđanje ponašanja sistema pneumatskog transporta pepela iz termoelektrana velikog kapaciteta i ocene moguće primene ovog nusproizvoda u različitim industrijskim granama. U okviru ove disertacije razmatrane su karakteristike pepela lignita Kolubara iz termoelektrane snage 620 MWe. Ispitivanjima fizičko-hemijskih karakteristika uzoraka zaključeno je da postoji izrazita heterogenost pepela, što naročito utiče na njegove aeracione karakteristike. Međusobne zavisnosti fizičkih i aeracionih karakteristika pokazale su da za ispitivani pepeo nije moguće jednoznačno definisati režim pneumatskog transporta. S obzirom na činjenicu da je ispitivani pepeo na granici ugušćene i razređene faze, peremabilnost pepela, koja je značajan parametar za definisanje pneumatskog transporta, pokazuje da su neophodne brzine transporta u granicama od 10 do 15 m/s. Razvijen je programski kod za dva numerička modela proračuna pada pritiska pri pneumatskom transportu pepela velikog kapaciteta i velike dužine. Verifikacija modela izvedena je na osnovu eksperimentalnih ispitivanja pneumatskog transporta pepela kapaciteta 120 t/h i dužine 600 m. Model zasnovan na korelaciji Dogina i Lebedeva, gde je parametar A=1,4∙10-6, daje odlično slaganje sa eksperimentalnim podacima, uz korelacioni odnos 93,99% i srednje kvadratno odstupanje 9,58%. Rezultati ove doktorske disertacije imaju veliki naučni i praktični značaj. Predstavljaju dobru osnovu za dalja istraživanja, razmatranje moguće primene ispitivanog pepela, kao i za definisanje optimalnog režima i projektovanje sistema pneumatskog transporta ovog ili sličnog materijala., Large volumes of ash are generated as byproduct of coal combustion process in thermoenergetic plants, and their proper operation depends upon efficient pneumatic conveying system to dispose it continuously. Disposing the ash to landfills creates huge environmental burden. Both physico-chemical and aeration characteristics of ash are prerequisite for accurate and reliable behaviour prediction of long distance large capacity pneumatic conveying system as well as for possible utilization consideration. This doctoral dissertation analyzed characteristics of Kolubara lignite ash from a 620 MWe thermal power plant. Physico-chemical characteristics investigation of samples led to conclusion that this ash is extremely heterogeneous material, and that significantly affects its aeration characteristics. Relationship between physical and aeration characteristics of ash showed that unambiguous defining of pneumatic conveying mode is not possible. Considering the fact that this ash belongs to boundary area of dilute and dense phase, ash permeability, as important parameter of pneumatic conveying defining, indicated required transport velocities between 10 to 15 m/s. A computer program code was developed for two numerical models to estimate pressure drop for large capacity long distance ash pneumatic conveying. Model verification was undertaken using experimental data obtained by examination of 120 t/h and 600 m pneumatic conveying of ash. Model based on correlation of Dogin and Lebedev, for parameter A=1,4∙10-6, is in excellent agreement with experimental data, having correlation ratio 93,99% and rootmean- square deviation 9,58%. This doctoral dissertation results are of scientific and practical importance. They offer a good basis for further investigations, considering possible utilization of this ash as well as for defining optimal mode and designing pneumatic conveying system of this or similar material.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Svojstva pepela iz termoelektrana značajna za odlaganje i primenu, Characteristics of ash from thermal power plants important for disposalund utilization",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11470"
}

Karličić, N.. (2019). Svojstva pepela iz termoelektrana značajna za odlaganje i primenu. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_11470

Karličić N. Svojstva pepela iz termoelektrana značajna za odlaganje i primenu. 2019;.
https://hdl.handle.net/21.15107/rcub_nardus_11470 .

Karličić, Nikola, "Svojstva pepela iz termoelektrana značajna za odlaganje i primenu" (2019),
https://hdl.handle.net/21.15107/rcub_nardus_11470 .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3158
AB  - Slow pyrolysis characteristics of different biomasses (hazelnut shell (HS), sawdust (Beech), and sawdust chemically treated (SDCT)) were investigated by simultaneous thermal analysis (STA), coupled with mass spectrometry (MS). Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of the samples are due to differences in their composition. Mass spectrometry results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that HS could be a good fuel, since during its pyrolysis at high temperature, more gaseous products are released compared to other systems. Isoconversional (model-free) method was used in order to determine variation magnitudes of effective activation energy (E-a) values on conversion fraction (alpha) during pyrolysis. It was found that identified variations of E-a with alpha arise from the different chemical structures among cellulose, hemicelluloses and lignin in tested samples that may affect on their effective activation energies.
PB  - Springer International Publishing Ag, Cham
C3  - Experimental and Numerical Investigations in Materials Science and Engineering
T1  - TGA-DSC-MS Analysis of Pyrolysis Process of Various Biomasses with Isoconversional (Model-Free) Kinetics
EP  - 33
SP  - 16
VL  - 54
DO  - 10.1007/978-3-319-99620-2_2
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2019",
abstract = "Slow pyrolysis characteristics of different biomasses (hazelnut shell (HS), sawdust (Beech), and sawdust chemically treated (SDCT)) were investigated by simultaneous thermal analysis (STA), coupled with mass spectrometry (MS). Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of the samples are due to differences in their composition. Mass spectrometry results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that HS could be a good fuel, since during its pyrolysis at high temperature, more gaseous products are released compared to other systems. Isoconversional (model-free) method was used in order to determine variation magnitudes of effective activation energy (E-a) values on conversion fraction (alpha) during pyrolysis. It was found that identified variations of E-a with alpha arise from the different chemical structures among cellulose, hemicelluloses and lignin in tested samples that may affect on their effective activation energies.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Experimental and Numerical Investigations in Materials Science and Engineering",
title = "TGA-DSC-MS Analysis of Pyrolysis Process of Various Biomasses with Isoconversional (Model-Free) Kinetics",
pages = "33-16",
volume = "54",
doi = "10.1007/978-3-319-99620-2_2"
}

Manić, N., Janković, B., Stojiljković, D.,& Jovanović, V.. (2019). TGA-DSC-MS Analysis of Pyrolysis Process of Various Biomasses with Isoconversional (Model-Free) Kinetics. in Experimental and Numerical Investigations in Materials Science and Engineering
Springer International Publishing Ag, Cham., 54, 16-33.
https://doi.org/10.1007/978-3-319-99620-2_2

Manić N, Janković B, Stojiljković D, Jovanović V. TGA-DSC-MS Analysis of Pyrolysis Process of Various Biomasses with Isoconversional (Model-Free) Kinetics. in Experimental and Numerical Investigations in Materials Science and Engineering. 2019;54:16-33.
doi:10.1007/978-3-319-99620-2_2 .

Manić, Nebojša, Janković, Bojan, Stojiljković, Dragoslava, Jovanović, Vladimir, "TGA-DSC-MS Analysis of Pyrolysis Process of Various Biomasses with Isoconversional (Model-Free) Kinetics" in Experimental and Numerical Investigations in Materials Science and Engineering, 54 (2019):16-33,
https://doi.org/10.1007/978-3-319-99620-2_2 . .

TY  - JOUR
AU  - Obradović, Marko
AU  - Radić, Dejan
AU  - Todorović, Dušan
AU  - Jovović, Aleksandar
AU  - Karličić, Nikola
AU  - Stanojević, Miroslav
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3194
AB  - This paper analyzes the effects of coal grindability and its characteristics on the grinding capacity and power consumption for beater wheel mill during exploitation in thermal power plant TENT B in Obrenovac, Serbia. For this purpose, experiments were made on the mill, before and after its reconstruction. Experiments included the determination of grinding capacity, mill power consumption, and laboratory analysis of coal characteristics and Hardgrove grindability index (HGI). The analysis of experimental results found that the grinding capacity has a negative correlation with the ash content in coal. Moisture content in analysis sample of coal has a positive correlation with the consumption of electricity and grinding capacity. Between the grinding capacity and the value of HGI exists a negative correlation. Analysis of the influence of grindability of coal and coal characteristics on grinding capacity and energy consumption was carried out. Based on coal characteristics and values of HGI, mathematical expressions were derived for the calculation of grinding capacity and electric energy consumption. In addition, ability to predict specific power consumption of the mill on the basis of HGI values, were carried out. Specific power consumption obtained from HGI values showed good agreement with the experimentally determined specific power consumption of the mill.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Practical assessment of grinding capacity and power consumption based on hardgrove grindability index and coal characteristics
EP  - S1542
SP  - S1533
VL  - 23
DO  - 10.2298/TSCI1806053760
ER  - 

@article{
author = "Obradović, Marko and Radić, Dejan and Todorović, Dušan and Jovović, Aleksandar and Karličić, Nikola and Stanojević, Miroslav",
year = "2019",
abstract = "This paper analyzes the effects of coal grindability and its characteristics on the grinding capacity and power consumption for beater wheel mill during exploitation in thermal power plant TENT B in Obrenovac, Serbia. For this purpose, experiments were made on the mill, before and after its reconstruction. Experiments included the determination of grinding capacity, mill power consumption, and laboratory analysis of coal characteristics and Hardgrove grindability index (HGI). The analysis of experimental results found that the grinding capacity has a negative correlation with the ash content in coal. Moisture content in analysis sample of coal has a positive correlation with the consumption of electricity and grinding capacity. Between the grinding capacity and the value of HGI exists a negative correlation. Analysis of the influence of grindability of coal and coal characteristics on grinding capacity and energy consumption was carried out. Based on coal characteristics and values of HGI, mathematical expressions were derived for the calculation of grinding capacity and electric energy consumption. In addition, ability to predict specific power consumption of the mill on the basis of HGI values, were carried out. Specific power consumption obtained from HGI values showed good agreement with the experimentally determined specific power consumption of the mill.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Practical assessment of grinding capacity and power consumption based on hardgrove grindability index and coal characteristics",
pages = "S1542-S1533",
volume = "23",
doi = "10.2298/TSCI1806053760"
}

Obradović, M., Radić, D., Todorović, D., Jovović, A., Karličić, N.,& Stanojević, M.. (2019). Practical assessment of grinding capacity and power consumption based on hardgrove grindability index and coal characteristics. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23, S1533-S1542.
https://doi.org/10.2298/TSCI1806053760

Obradović M, Radić D, Todorović D, Jovović A, Karličić N, Stanojević M. Practical assessment of grinding capacity and power consumption based on hardgrove grindability index and coal characteristics. in Thermal Science. 2019;23:S1533-S1542.
doi:10.2298/TSCI1806053760 .

Obradović, Marko, Radić, Dejan, Todorović, Dušan, Jovović, Aleksandar, Karličić, Nikola, Stanojević, Miroslav, "Practical assessment of grinding capacity and power consumption based on hardgrove grindability index and coal characteristics" in Thermal Science, 23 (2019):S1533-S1542,
https://doi.org/10.2298/TSCI1806053760 . .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
AU  - Radojević, Miloš
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3151
AB  - Slow pyrolysis (gradual heating over a wide range of temperatures) characteristics of various biomasses (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA-TGA-DTG-DSC), coupled with mass spectrometry. Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of the samples are due to differences in their composition. The mass spectrometry results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were main gaseous products released during pyrolysis. Within the pyrolysis processes, it was found that CO2 can be used on the large scale for production of CO-rich syngas.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Tga-dsc-ms analysis of pyrolysis process of various agricultural residues
EP  - S1472
SP  - S1457
VL  - 23
DO  - 10.2298/TSCI180118182M
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Stojiljković, Dragoslava and Jovanović, Vladimir and Radojević, Miloš",
year = "2019",
abstract = "Slow pyrolysis (gradual heating over a wide range of temperatures) characteristics of various biomasses (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA-TGA-DTG-DSC), coupled with mass spectrometry. Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of the samples are due to differences in their composition. The mass spectrometry results showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were main gaseous products released during pyrolysis. Within the pyrolysis processes, it was found that CO2 can be used on the large scale for production of CO-rich syngas.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Tga-dsc-ms analysis of pyrolysis process of various agricultural residues",
pages = "S1472-S1457",
volume = "23",
doi = "10.2298/TSCI180118182M"
}

Manić, N., Janković, B., Stojiljković, D., Jovanović, V.,& Radojević, M.. (2019). Tga-dsc-ms analysis of pyrolysis process of various agricultural residues. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23, S1457-S1472.
https://doi.org/10.2298/TSCI180118182M

Manić N, Janković B, Stojiljković D, Jovanović V, Radojević M. Tga-dsc-ms analysis of pyrolysis process of various agricultural residues. in Thermal Science. 2019;23:S1457-S1472.
doi:10.2298/TSCI180118182M .

Manić, Nebojša, Janković, Bojan, Stojiljković, Dragoslava, Jovanović, Vladimir, Radojević, Miloš, "Tga-dsc-ms analysis of pyrolysis process of various agricultural residues" in Thermal Science, 23 (2019):S1457-S1472,
https://doi.org/10.2298/TSCI180118182M . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Buchner, Richard
AU  - Plowas-Korus, Iwona
AU  - Pereiro, Ana B.
AU  - Amado-Gonzalez, Eliseo
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3132
AB  - Dielectric relaxation spectra of three representatives of the class of hydroxyethylammonium carboxylate protic ionic liquids (PILs), namely 2-hydroxyethylammonium formate [2-HEAF], 2-hydroxyethylammonium propionate [2-HEAP] and 2-hydroxyethylammonium butanoate [2-HEAB], were recorded over a wide frequency range (0.05  lt = v(GHz)  lt = 50) at 25 degrees C. The thermal decomposition kinetics of these ionic liquids derived from organic acids was studied by thennogravimetry (TG) using nonisothermal experiments. For the purpose of kinetic analysis, the thermal behavior of the samples was studied in the temperature interval from ambient temperature up to 420 degrees C at different heating rates (5, 10, 15 and 20 degrees C min(-1)). Isoconversional kinetic analysis was performed using Friedman's (FR) differential method and the integral Kissinger-Akahira-Sunose (KAS) method. The dependence of the apparent activation energy (E) on the conversion fraction (alpha) for the investigated decomposition processes was analyzed. It was found that the molecular structure of the involved anion significantly influences the dielectric properties of the studied PILs. It was also established that a change in the anion structure drastically affects the shape of the thermo-analytical curves. Among the considered PILs [2-HEAF] has the highest thermal stability. However, considering kinetic properties, certain deviations were observed and referred to hydrogen bonding development and steric impediment effects.
PB  - Elsevier Science Bv, Amsterdam
T2  - Thermochimica Acta
T1  - Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid
EP  - 52
SP  - 43
VL  - 672
DO  - 10.1016/j.tca.2018.12.013
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Buchner, Richard and Plowas-Korus, Iwona and Pereiro, Ana B. and Amado-Gonzalez, Eliseo",
year = "2019",
abstract = "Dielectric relaxation spectra of three representatives of the class of hydroxyethylammonium carboxylate protic ionic liquids (PILs), namely 2-hydroxyethylammonium formate [2-HEAF], 2-hydroxyethylammonium propionate [2-HEAP] and 2-hydroxyethylammonium butanoate [2-HEAB], were recorded over a wide frequency range (0.05  lt = v(GHz)  lt = 50) at 25 degrees C. The thermal decomposition kinetics of these ionic liquids derived from organic acids was studied by thennogravimetry (TG) using nonisothermal experiments. For the purpose of kinetic analysis, the thermal behavior of the samples was studied in the temperature interval from ambient temperature up to 420 degrees C at different heating rates (5, 10, 15 and 20 degrees C min(-1)). Isoconversional kinetic analysis was performed using Friedman's (FR) differential method and the integral Kissinger-Akahira-Sunose (KAS) method. The dependence of the apparent activation energy (E) on the conversion fraction (alpha) for the investigated decomposition processes was analyzed. It was found that the molecular structure of the involved anion significantly influences the dielectric properties of the studied PILs. It was also established that a change in the anion structure drastically affects the shape of the thermo-analytical curves. Among the considered PILs [2-HEAF] has the highest thermal stability. However, considering kinetic properties, certain deviations were observed and referred to hydrogen bonding development and steric impediment effects.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Thermochimica Acta",
title = "Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid",
pages = "52-43",
volume = "672",
doi = "10.1016/j.tca.2018.12.013"
}

Janković, B., Manić, N., Buchner, R., Plowas-Korus, I., Pereiro, A. B.,& Amado-Gonzalez, E.. (2019). Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid. in Thermochimica Acta
Elsevier Science Bv, Amsterdam., 672, 43-52.
https://doi.org/10.1016/j.tca.2018.12.013

Janković B, Manić N, Buchner R, Plowas-Korus I, Pereiro AB, Amado-Gonzalez E. Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid. in Thermochimica Acta. 2019;672:43-52.
doi:10.1016/j.tca.2018.12.013 .

Janković, Bojan, Manić, Nebojša, Buchner, Richard, Plowas-Korus, Iwona, Pereiro, Ana B., Amado-Gonzalez, Eliseo, "Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid" in Thermochimica Acta, 672 (2019):43-52,
https://doi.org/10.1016/j.tca.2018.12.013 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Popović, Jasmina
AU  - Rusmirović, Jelena D.
AU  - Tosić, Miloš
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3099
AB  - This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 degrees C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study
EP  - 128
SP  - 111
VL  - 238
DO  - 10.1016/j.fuel.2018.10.064
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Popović, Jasmina and Rusmirović, Jelena D. and Tosić, Miloš",
year = "2019",
abstract = "This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 degrees C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study",
pages = "128-111",
volume = "238",
doi = "10.1016/j.fuel.2018.10.064"
}

Janković, B., Manić, N., Dodevski, V., Popović, J., Rusmirović, J. D.,& Tosić, M.. (2019). Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel
Elsevier Sci Ltd, Oxford., 238, 111-128.
https://doi.org/10.1016/j.fuel.2018.10.064

Janković B, Manić N, Dodevski V, Popović J, Rusmirović JD, Tosić M. Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel. 2019;238:111-128.
doi:10.1016/j.fuel.2018.10.064 .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Popović, Jasmina, Rusmirović, Jelena D., Tosić, Miloš, "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study" in Fuel, 238 (2019):111-128,
https://doi.org/10.1016/j.fuel.2018.10.064 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Radović, Ivana
AU  - Janković, Marija
AU  - Rajacić, Milica
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3024
AB  - Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques
VL  - 679
DO  - 10.1016/j.tca.2019.178337
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Radović, Ivana and Janković, Marija and Rajacić, Milica",
year = "2019",
abstract = "Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques",
volume = "679",
doi = "10.1016/j.tca.2019.178337"
}

Janković, B., Manić, N., Radović, I., Janković, M.,& Rajacić, M.. (2019). Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta
Elsevier, Amsterdam., 679.
https://doi.org/10.1016/j.tca.2019.178337

Janković B, Manić N, Radović I, Janković M, Rajacić M. Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta. 2019;679.
doi:10.1016/j.tca.2019.178337 .

Janković, Bojan, Manić, Nebojša, Radović, Ivana, Janković, Marija, Rajacić, Milica, "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques" in Thermochimica Acta, 679 (2019),
https://doi.org/10.1016/j.tca.2019.178337 . .

TY  - JOUR
AU  - Karličić, Nikola
AU  - Jovović, Aleksandar
AU  - Radić, Dejan
AU  - Obradović, Marko
AU  - Todorović, Dušan
AU  - Stanojević, Miroslav
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2987
AB  - The aim of this experimental study was to evaluate the effect of permeability on the mode of flow that lignite fly ash will support in a pneumatic conveying pipeline. This research was initiated by recurring problems with the long distance and high capacity low grade lignite ash pneumatic conveying system at the 1200 MWe thermal power plant, such as clogging, unsteady flow mode, significant increase of velocity due to pressure drop and erosive wear of pipeline. Ash samples were taken during pneumatic conveying system clogging for further analysis. The experiment was limited to measuring parameters that provide data to determine minimum fluidizing velocity and permeability. The results showed very heterogeneous materials of group B by Geldart, what caused specific phenomenon during the experimental fluidization tests. Minimum fluidizing velocity for this kind of material is not authoritative for defining pneumatic conveying system, since extremely heterogeneous materials at this air speed will remain stationary or will convey very slow or with stoppage, and that required velocities are from 10 to 15 times higher than minimum fluidizing velocity. According to the results, this ash is the most suitable for dense phase pneumatic conveying.
PB  - Syscom 18 SRL
T2  - Revista de Chimie
T1  - The Effect of Permeability on Lignite Fly Ash Pneumatic Conveying System Design
EP  - 345
IS  - 2
SP  - 341
VL  - 69
DO  - 10.37358/rc.18.2.6103
ER  - 

@article{
author = "Karličić, Nikola and Jovović, Aleksandar and Radić, Dejan and Obradović, Marko and Todorović, Dušan and Stanojević, Miroslav",
year = "2018",
abstract = "The aim of this experimental study was to evaluate the effect of permeability on the mode of flow that lignite fly ash will support in a pneumatic conveying pipeline. This research was initiated by recurring problems with the long distance and high capacity low grade lignite ash pneumatic conveying system at the 1200 MWe thermal power plant, such as clogging, unsteady flow mode, significant increase of velocity due to pressure drop and erosive wear of pipeline. Ash samples were taken during pneumatic conveying system clogging for further analysis. The experiment was limited to measuring parameters that provide data to determine minimum fluidizing velocity and permeability. The results showed very heterogeneous materials of group B by Geldart, what caused specific phenomenon during the experimental fluidization tests. Minimum fluidizing velocity for this kind of material is not authoritative for defining pneumatic conveying system, since extremely heterogeneous materials at this air speed will remain stationary or will convey very slow or with stoppage, and that required velocities are from 10 to 15 times higher than minimum fluidizing velocity. According to the results, this ash is the most suitable for dense phase pneumatic conveying.",
publisher = "Syscom 18 SRL",
journal = "Revista de Chimie",
title = "The Effect of Permeability on Lignite Fly Ash Pneumatic Conveying System Design",
pages = "345-341",
number = "2",
volume = "69",
doi = "10.37358/rc.18.2.6103"
}

Karličić, N., Jovović, A., Radić, D., Obradović, M., Todorović, D.,& Stanojević, M.. (2018). The Effect of Permeability on Lignite Fly Ash Pneumatic Conveying System Design. in Revista de Chimie
Syscom 18 SRL., 69(2), 341-345.
https://doi.org/10.37358/rc.18.2.6103

Karličić N, Jovović A, Radić D, Obradović M, Todorović D, Stanojević M. The Effect of Permeability on Lignite Fly Ash Pneumatic Conveying System Design. in Revista de Chimie. 2018;69(2):341-345.
doi:10.37358/rc.18.2.6103 .

Karličić, Nikola, Jovović, Aleksandar, Radić, Dejan, Obradović, Marko, Todorović, Dušan, Stanojević, Miroslav, "The Effect of Permeability on Lignite Fly Ash Pneumatic Conveying System Design" in Revista de Chimie, 69, no. 2 (2018):341-345,
https://doi.org/10.37358/rc.18.2.6103 . .

TY  - JOUR
AU  - Radojević, Miloš
AU  - Balać, Martina
AU  - Jovanović, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Manić, Nebojša
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2846
AB  - In the Republic of Serbia there are significant quantities of coffee and tire wastes that can be utilized as Solid Recovered Fuel (SRF) and used as an additional fuel for co-combustion with coal and biomass in energy production and cement industry sectors. Differences between SRF and base fuel are a cause of numerous problems in design of burners. The objective of this study was to determine the kinetic parameters for the thermochemical conversion of selected SRF using Simultaneous Thermal Analysis (STA). Samples of coffee and tire waste were used for the experimental tests. Thermal analysis was carried out in nitrogen atmosphere at three different heating rates 10, 15 and 20 K/min for each sample, while it was heated from room temperature up to 900 degrees C. Two sample sizes x  lt  0.25 mm and 0.25  lt  x  lt  0.5 mm of each SRF were used in experiments, in order to obtain reliable Thermal Gravimetric Analysis (TGA) data for estimation of kinetic parameters for SRF pyrolysis. Experimental results were used for determination of pre-exponential factor and activation energy according to methods presented in the literature. Presented research provides valuable data of coffee and tire waste that can be used for the burners design.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Thermogravimetric kinetic study of solid recovered fuels pyrolysis
EP  - 106
IS  - 2
SP  - 99
VL  - 72
DO  - 10.2298/HEMIND171009002R
ER  - 

@article{
author = "Radojević, Miloš and Balać, Martina and Jovanović, Vladimir and Stojiljković, Dragoslava and Manić, Nebojša",
year = "2018",
abstract = "In the Republic of Serbia there are significant quantities of coffee and tire wastes that can be utilized as Solid Recovered Fuel (SRF) and used as an additional fuel for co-combustion with coal and biomass in energy production and cement industry sectors. Differences between SRF and base fuel are a cause of numerous problems in design of burners. The objective of this study was to determine the kinetic parameters for the thermochemical conversion of selected SRF using Simultaneous Thermal Analysis (STA). Samples of coffee and tire waste were used for the experimental tests. Thermal analysis was carried out in nitrogen atmosphere at three different heating rates 10, 15 and 20 K/min for each sample, while it was heated from room temperature up to 900 degrees C. Two sample sizes x  lt  0.25 mm and 0.25  lt  x  lt  0.5 mm of each SRF were used in experiments, in order to obtain reliable Thermal Gravimetric Analysis (TGA) data for estimation of kinetic parameters for SRF pyrolysis. Experimental results were used for determination of pre-exponential factor and activation energy according to methods presented in the literature. Presented research provides valuable data of coffee and tire waste that can be used for the burners design.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Thermogravimetric kinetic study of solid recovered fuels pyrolysis",
pages = "106-99",
number = "2",
volume = "72",
doi = "10.2298/HEMIND171009002R"
}

Radojević, M., Balać, M., Jovanović, V., Stojiljković, D.,& Manić, N.. (2018). Thermogravimetric kinetic study of solid recovered fuels pyrolysis. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 72(2), 99-106.
https://doi.org/10.2298/HEMIND171009002R

Radojević M, Balać M, Jovanović V, Stojiljković D, Manić N. Thermogravimetric kinetic study of solid recovered fuels pyrolysis. in Hemijska Industrija. 2018;72(2):99-106.
doi:10.2298/HEMIND171009002R .

Radojević, Miloš, Balać, Martina, Jovanović, Vladimir, Stojiljković, Dragoslava, Manić, Nebojša, "Thermogravimetric kinetic study of solid recovered fuels pyrolysis" in Hemijska Industrija, 72, no. 2 (2018):99-106,
https://doi.org/10.2298/HEMIND171009002R . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2888
AB  - Slow pyrolysis characterization and kinetic modeling study of five different biomasses (corn brakes (CB), wheat straw (WS), hazelnut shell (HS), sawdust (Beech), and sawdust chemically treated (SDCT)) were performed in this work, using STA-MS techniques. Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. Mass spectrometry (MS) showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during the pyrolysis of biomasses. It was found that H2O, CO and CO2 evolutions for all biomass samples arise from lignin source in biomass, followed by the cellulose, and hemicelluloses. It was established that the pseudo-component fraction estimated by the theoretical calculations is dependent on the heating rate. Using Gaussian mull-peak fitting and peak-to-peak approaches, regardless of the type of biomass, it was found that decomposition of lignin occurs independently of decomposition of remaining two pseudo-components and that there is no interaction between them. Namely, it was assumed that during pyrolysis process of biomasses, carbohydrate (hemicelluloses + cellulose)-lignin chemical structures most likely exist, where the variety of lignin structure units in different types of biomass affects on the level of energy required for its decomposition.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - TSA-MS characterization and kinetic study of the pyrolysis process of various types of biomass based on the Gaussian multi-peak fitting and peak-to-peak approaches
EP  - 463
SP  - 447
VL  - 234
DO  - 10.1016/j.fuel.2018.07.051
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2018",
abstract = "Slow pyrolysis characterization and kinetic modeling study of five different biomasses (corn brakes (CB), wheat straw (WS), hazelnut shell (HS), sawdust (Beech), and sawdust chemically treated (SDCT)) were performed in this work, using STA-MS techniques. Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. Mass spectrometry (MS) showed that H-2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during the pyrolysis of biomasses. It was found that H2O, CO and CO2 evolutions for all biomass samples arise from lignin source in biomass, followed by the cellulose, and hemicelluloses. It was established that the pseudo-component fraction estimated by the theoretical calculations is dependent on the heating rate. Using Gaussian mull-peak fitting and peak-to-peak approaches, regardless of the type of biomass, it was found that decomposition of lignin occurs independently of decomposition of remaining two pseudo-components and that there is no interaction between them. Namely, it was assumed that during pyrolysis process of biomasses, carbohydrate (hemicelluloses + cellulose)-lignin chemical structures most likely exist, where the variety of lignin structure units in different types of biomass affects on the level of energy required for its decomposition.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "TSA-MS characterization and kinetic study of the pyrolysis process of various types of biomass based on the Gaussian multi-peak fitting and peak-to-peak approaches",
pages = "463-447",
volume = "234",
doi = "10.1016/j.fuel.2018.07.051"
}

Janković, B., Manić, N., Stojiljković, D.,& Jovanović, V.. (2018). TSA-MS characterization and kinetic study of the pyrolysis process of various types of biomass based on the Gaussian multi-peak fitting and peak-to-peak approaches. in Fuel
Elsevier Sci Ltd, Oxford., 234, 447-463.
https://doi.org/10.1016/j.fuel.2018.07.051

Janković B, Manić N, Stojiljković D, Jovanović V. TSA-MS characterization and kinetic study of the pyrolysis process of various types of biomass based on the Gaussian multi-peak fitting and peak-to-peak approaches. in Fuel. 2018;234:447-463.
doi:10.1016/j.fuel.2018.07.051 .

Janković, Bojan, Manić, Nebojša, Stojiljković, Dragoslava, Jovanović, Vladimir, "TSA-MS characterization and kinetic study of the pyrolysis process of various types of biomass based on the Gaussian multi-peak fitting and peak-to-peak approaches" in Fuel, 234 (2018):447-463,
https://doi.org/10.1016/j.fuel.2018.07.051 . .

TY  - JOUR
AU  - Životić, Miodrag M.
AU  - Jovanović, Vladimir
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2609
AB  - Od nedavno polje istraživanja sagorevanja uglja obuhvata i istraživanje nečistoća, posebno halogenih elemenata (F, Cl, I i At). Emisije hlorida i fluorida iz procesa sagorevanja zavise od sadržaja i oblika ovih elemenata u uglju, procesa sagorevanja i opreme za smanjenje emisija. Ispitivanje sadržaja hlorida i fluorida u uglju i dimnom gasu je posebno značajno pri projektovanju postrojenja za odsumporavanje dimnog gasa, sastavnog dela modernih termoelektrana, koje obezbeđuje ispunjenje propisanih zahteva u pogledu emisije _O2. U okviru sistema za odsumporavanje dimnog gasa, prisustvo HCl može dovesti do povećanja potrošnje sorbenta, a HCl i HF imaju uticaj na preradu otpadnih voda. U ovom radu su prikazani dobijeni rezultati sadržaja hlora i fluora u domaćim lignitima i njihova koncentracija u dimnom gasu. Cilj istraživanja je bilo utvrđivanje referentnih koncentracija Cl i F u dimnom gasu koje će biti korišćene pri projektovanju postrojenja za odsumporavanje dimnog gasa. PR Projekat Ministarstva nauke Republike Srbije, br. III 42010.
AB  - Recently, research in the field of coal combustion include impurities, specifically halogen elements (F, Cl, Br, I and At). Emission of chlorides and fluorides from the combustion depends on content and forms of these elements in coal, combustion process and emission reduction equipment. Examination of chlorides and fluorides content in coal and in flue gas is particularly important for design of flue gas desulphurisation plant, the integral part of the modern power plants which ensure meeting the requirements of SO2 emission regulations. In flue gas desulphurisation facilities, the presence of HCl may increase sorbent consumption and HCl and HF have the influence on wastewater treatment. This paper presents the results of chlorine and fluorine contents in domestic lignites and their concentration in flue gas. The aim of investigation was to determine the reference Cl and F concentrations in flue gas that would be used in the design of flue gas desulphurization plant.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Sadržaj hlorida i fluorida u dimnom gasu tokom sagorevanja domaćih lignita kao parametar pri projektovanju postrojenja za odsumporavanje dimnog gasa
T1  - Chloride and fluoride contents in flue gas during domestic lignite coals combustion as a parameter in the design of flue gas desulphurisation plant
EP  - 64
IS  - 1
SP  - 58
VL  - 45
DO  - 10.5937/fmet1701058Z
ER  - 

@article{
author = "Životić, Miodrag M. and Jovanović, Vladimir and Manić, Nebojša and Stojiljković, Dragoslava",
year = "2017",
abstract = "Od nedavno polje istraživanja sagorevanja uglja obuhvata i istraživanje nečistoća, posebno halogenih elemenata (F, Cl, I i At). Emisije hlorida i fluorida iz procesa sagorevanja zavise od sadržaja i oblika ovih elemenata u uglju, procesa sagorevanja i opreme za smanjenje emisija. Ispitivanje sadržaja hlorida i fluorida u uglju i dimnom gasu je posebno značajno pri projektovanju postrojenja za odsumporavanje dimnog gasa, sastavnog dela modernih termoelektrana, koje obezbeđuje ispunjenje propisanih zahteva u pogledu emisije _O2. U okviru sistema za odsumporavanje dimnog gasa, prisustvo HCl može dovesti do povećanja potrošnje sorbenta, a HCl i HF imaju uticaj na preradu otpadnih voda. U ovom radu su prikazani dobijeni rezultati sadržaja hlora i fluora u domaćim lignitima i njihova koncentracija u dimnom gasu. Cilj istraživanja je bilo utvrđivanje referentnih koncentracija Cl i F u dimnom gasu koje će biti korišćene pri projektovanju postrojenja za odsumporavanje dimnog gasa. PR Projekat Ministarstva nauke Republike Srbije, br. III 42010., Recently, research in the field of coal combustion include impurities, specifically halogen elements (F, Cl, Br, I and At). Emission of chlorides and fluorides from the combustion depends on content and forms of these elements in coal, combustion process and emission reduction equipment. Examination of chlorides and fluorides content in coal and in flue gas is particularly important for design of flue gas desulphurisation plant, the integral part of the modern power plants which ensure meeting the requirements of SO2 emission regulations. In flue gas desulphurisation facilities, the presence of HCl may increase sorbent consumption and HCl and HF have the influence on wastewater treatment. This paper presents the results of chlorine and fluorine contents in domestic lignites and their concentration in flue gas. The aim of investigation was to determine the reference Cl and F concentrations in flue gas that would be used in the design of flue gas desulphurization plant.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Sadržaj hlorida i fluorida u dimnom gasu tokom sagorevanja domaćih lignita kao parametar pri projektovanju postrojenja za odsumporavanje dimnog gasa, Chloride and fluoride contents in flue gas during domestic lignite coals combustion as a parameter in the design of flue gas desulphurisation plant",
pages = "64-58",
number = "1",
volume = "45",
doi = "10.5937/fmet1701058Z"
}

Životić, M. M., Jovanović, V., Manić, N.,& Stojiljković, D.. (2017). Sadržaj hlorida i fluorida u dimnom gasu tokom sagorevanja domaćih lignita kao parametar pri projektovanju postrojenja za odsumporavanje dimnog gasa. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 45(1), 58-64.
https://doi.org/10.5937/fmet1701058Z

Životić MM, Jovanović V, Manić N, Stojiljković D. Sadržaj hlorida i fluorida u dimnom gasu tokom sagorevanja domaćih lignita kao parametar pri projektovanju postrojenja za odsumporavanje dimnog gasa. in FME Transactions. 2017;45(1):58-64.
doi:10.5937/fmet1701058Z .

Životić, Miodrag M., Jovanović, Vladimir, Manić, Nebojša, Stojiljković, Dragoslava, "Sadržaj hlorida i fluorida u dimnom gasu tokom sagorevanja domaćih lignita kao parametar pri projektovanju postrojenja za odsumporavanje dimnog gasa" in FME Transactions, 45, no. 1 (2017):58-64,
https://doi.org/10.5937/fmet1701058Z . .

TY  - JOUR
AU  - Marković, Zoran J.
AU  - Stupar, Slobodan
AU  - Dinulović, Mirko
AU  - Peković, Ognjen
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2304
AB  - A fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wave-type shapes depending on thermal load and fluid inlet velocity inducing the changes of fluid flow accordingly. A set of fluid-structure interaction numerical tests have been defined by varying the values of fluid inlet velocity, temperature of inner and outer surface of the channel wall, and numerical grid density. The unsteady Navier-Stokes equations are numerically solved using an element-based finite volume method and second order backward Euler discretization scheme. The structural model is solved by finite element method including geometric and material non-linearities. The implicit two-way iterative code coupling, partitioned solution approach, were used while solving these numerical tests. Results of numerical analysis indicate that gravity and pressure distribution inside the channel contributes to triggering the shape of deformation. In the inverse problem, the results of fluid-structure interaction numerical simulations formed a database of input variables for development fuzzy logic based models considering downstream pressure drop and maximum stresses as the objective functions. Developed fuzzy models predicted targeting results within a reasonable accuracy limit at lower computation cost compared to series of fluid-structure interaction numerical calculations. Smaller relative difference were obtained when calculating the values of pressure drop then maximal stresses indicating that transfer function influence on output values have to be additionally investigated.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Assessment results of fluid-structure interaction numerical simulation using fuzzy logic
EP  - S250
SP  - S235
VL  - 20
DO  - 10.2298/TSCI160111083M
ER  - 

@article{
author = "Marković, Zoran J. and Stupar, Slobodan and Dinulović, Mirko and Peković, Ognjen and Stefanović, Predrag Lj. and Cvetinović, Dejan",
year = "2016",
abstract = "A fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wave-type shapes depending on thermal load and fluid inlet velocity inducing the changes of fluid flow accordingly. A set of fluid-structure interaction numerical tests have been defined by varying the values of fluid inlet velocity, temperature of inner and outer surface of the channel wall, and numerical grid density. The unsteady Navier-Stokes equations are numerically solved using an element-based finite volume method and second order backward Euler discretization scheme. The structural model is solved by finite element method including geometric and material non-linearities. The implicit two-way iterative code coupling, partitioned solution approach, were used while solving these numerical tests. Results of numerical analysis indicate that gravity and pressure distribution inside the channel contributes to triggering the shape of deformation. In the inverse problem, the results of fluid-structure interaction numerical simulations formed a database of input variables for development fuzzy logic based models considering downstream pressure drop and maximum stresses as the objective functions. Developed fuzzy models predicted targeting results within a reasonable accuracy limit at lower computation cost compared to series of fluid-structure interaction numerical calculations. Smaller relative difference were obtained when calculating the values of pressure drop then maximal stresses indicating that transfer function influence on output values have to be additionally investigated.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Assessment results of fluid-structure interaction numerical simulation using fuzzy logic",
pages = "S250-S235",
volume = "20",
doi = "10.2298/TSCI160111083M"
}

Marković, Z. J., Stupar, S., Dinulović, M., Peković, O., Stefanović, P. Lj.,& Cvetinović, D.. (2016). Assessment results of fluid-structure interaction numerical simulation using fuzzy logic. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20, S235-S250.
https://doi.org/10.2298/TSCI160111083M

Marković ZJ, Stupar S, Dinulović M, Peković O, Stefanović PL, Cvetinović D. Assessment results of fluid-structure interaction numerical simulation using fuzzy logic. in Thermal Science. 2016;20:S235-S250.
doi:10.2298/TSCI160111083M .

Marković, Zoran J., Stupar, Slobodan, Dinulović, Mirko, Peković, Ognjen, Stefanović, Predrag Lj., Cvetinović, Dejan, "Assessment results of fluid-structure interaction numerical simulation using fuzzy logic" in Thermal Science, 20 (2016):S235-S250,
https://doi.org/10.2298/TSCI160111083M . .

TY  - JOUR
AU  - Erić, Milić D.
AU  - Stakić, Milan B.
AU  - Banjac, Miloš
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2428
AB  - An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite
EP  - S181
SP  - S167
VL  - 20
DO  - 10.2298/TSCI150725172E
ER  - 

@article{
author = "Erić, Milić D. and Stakić, Milan B. and Banjac, Miloš",
year = "2016",
abstract = "An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite",
pages = "S181-S167",
volume = "20",
doi = "10.2298/TSCI150725172E"
}

Erić, M. D., Stakić, M. B.,& Banjac, M.. (2016). Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20, S167-S181.
https://doi.org/10.2298/TSCI150725172E

Erić MD, Stakić MB, Banjac M. Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite. in Thermal Science. 2016;20:S167-S181.
doi:10.2298/TSCI150725172E .

Erić, Milić D., Stakić, Milan B., Banjac, Miloš, "Fluid bed drying as upgrading technology for feasible treatment of kolubara lignite" in Thermal Science, 20 (2016):S167-S181,
https://doi.org/10.2298/TSCI150725172E . .