TY  - CONF
AU  - Jarić, Marko
AU  - Petronić, Sanja
AU  - Budimir, Nikola
AU  - Polić, Suzana
AU  - Rudonja, Nedžad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7212
AB  - Heat exchangers used in agricultural processes are mainly manufactured by three technologies: brazed copper-brass, mechanically assembled aluminum and brazed aluminum. The appropriate choice depends on various criteria: price, weight, corrosion resistance, performance in a limited volume, required pressure drops, temperature resistance, reliability, etc. Brazed aluminum is increasingly popular due to several advantages, such as resistance to high pressure and temperatures. Aluminum heat exchangers can be exposed to external and internal corrosion in various environmental conditions. Corrosion has a negative impact on the mechanical integrity and thermal performance of heat exchangers. Therefore, specific operating design parameters, as well as mechanical design characteristics, are of great importance for consideration in construction. Proper selection and design can ensure the successful and safe operation of the heat exchanger and the plant itself. The HVAC industry is directed towards the search for the best solutions in order to increase the performance, energy efficiency and durability of the equipment while reducing the costs of their production. Aluminum pipes and other aluminum components are increasingly replacing copper pipes. In this paper, application, design, assembling process and operation considerations for brazed aluminum heat exchangers used for needs in agricultural processes have presented.
PB  - University of Belgrade - Faculty of Agriculture
C3  - ISAE 2023  The 6th International Symposium on Agricultural Engineering, 19th – 21st Oct 2023, Belgrade–Zemun, Serbia
T1  - Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants
EP  - 8
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7212
ER  - 

@conference{
author = "Jarić, Marko and Petronić, Sanja and Budimir, Nikola and Polić, Suzana and Rudonja, Nedžad",
year = "2023",
abstract = "Heat exchangers used in agricultural processes are mainly manufactured by three technologies: brazed copper-brass, mechanically assembled aluminum and brazed aluminum. The appropriate choice depends on various criteria: price, weight, corrosion resistance, performance in a limited volume, required pressure drops, temperature resistance, reliability, etc. Brazed aluminum is increasingly popular due to several advantages, such as resistance to high pressure and temperatures. Aluminum heat exchangers can be exposed to external and internal corrosion in various environmental conditions. Corrosion has a negative impact on the mechanical integrity and thermal performance of heat exchangers. Therefore, specific operating design parameters, as well as mechanical design characteristics, are of great importance for consideration in construction. Proper selection and design can ensure the successful and safe operation of the heat exchanger and the plant itself. The HVAC industry is directed towards the search for the best solutions in order to increase the performance, energy efficiency and durability of the equipment while reducing the costs of their production. Aluminum pipes and other aluminum components are increasingly replacing copper pipes. In this paper, application, design, assembling process and operation considerations for brazed aluminum heat exchangers used for needs in agricultural processes have presented.",
publisher = "University of Belgrade - Faculty of Agriculture",
journal = "ISAE 2023  The 6th International Symposium on Agricultural Engineering, 19th – 21st Oct 2023, Belgrade–Zemun, Serbia",
title = "Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants",
pages = "8-1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7212"
}

Jarić, M., Petronić, S., Budimir, N., Polić, S.,& Rudonja, N.. (2023). Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants. in ISAE 2023  The 6th International Symposium on Agricultural Engineering, 19th – 21st Oct 2023, Belgrade–Zemun, Serbia
University of Belgrade - Faculty of Agriculture., 1-8.
https://hdl.handle.net/21.15107/rcub_machinery_7212

Jarić M, Petronić S, Budimir N, Polić S, Rudonja N. Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants. in ISAE 2023  The 6th International Symposium on Agricultural Engineering, 19th – 21st Oct 2023, Belgrade–Zemun, Serbia. 2023;:1-8.
https://hdl.handle.net/21.15107/rcub_machinery_7212 .

Jarić, Marko, Petronić, Sanja, Budimir, Nikola, Polić, Suzana, Rudonja, Nedžad, "Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants" in ISAE 2023  The 6th International Symposium on Agricultural Engineering, 19th – 21st Oct 2023, Belgrade–Zemun, Serbia (2023):1-8,
https://hdl.handle.net/21.15107/rcub_machinery_7212 .

TY  - CONF
AU  - Jovanović, Nemanja
AU  - Zlatanović, Ivan
AU  - Simonović, Vojislav
AU  - Rudonja, Nedžad
AU  - Nedić, Nebojša
AU  - Firfiris, Vasileios
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7754
AB  - The widely recognized insect known as the honey bee (Apis mellifera)
has a beneficial impact on both the environment and human life, making it important to
protect them not just for ecological reasons but also for the economic and social
advancement of countryside regions. Their existence is so essential that the recent
decrease in honey bee hives has caused a growing interest in them. One of the reasons
for bees' decline in population is infestation with a parasite known as Varroa
destructor. In order to effectively treat the V. destructor infestation, it is critical to
monitor the amount of infestation in hives. While there is at present no specific sensor
for this job, continuous and discrete monitoring of hive infection levels as well as other
critical bee colony characteristics, such as temperature and humidity, is wanted. The
use of chemicals by apiarists is a method of controlling the infestation that is the most
common strategy. Substitute tactics include the use of organic compounds, organic
products like essential oils, and biotechnological techniques like mite trapping.
Therefore, successful therapy and preventing harsh chemical use can reduce bee
mortality and economic losses.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
T1  - REVIEW PAPER ON VARROA INFESTATION, DETECTION AND PREVENTION IN BEEHIVES
EP  - 51
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7754
ER  - 

@conference{
author = "Jovanović, Nemanja and Zlatanović, Ivan and Simonović, Vojislav and Rudonja, Nedžad and Nedić, Nebojša and Firfiris, Vasileios",
year = "2023",
abstract = "The widely recognized insect known as the honey bee (Apis mellifera)
has a beneficial impact on both the environment and human life, making it important to
protect them not just for ecological reasons but also for the economic and social
advancement of countryside regions. Their existence is so essential that the recent
decrease in honey bee hives has caused a growing interest in them. One of the reasons
for bees' decline in population is infestation with a parasite known as Varroa
destructor. In order to effectively treat the V. destructor infestation, it is critical to
monitor the amount of infestation in hives. While there is at present no specific sensor
for this job, continuous and discrete monitoring of hive infection levels as well as other
critical bee colony characteristics, such as temperature and humidity, is wanted. The
use of chemicals by apiarists is a method of controlling the infestation that is the most
common strategy. Substitute tactics include the use of organic compounds, organic
products like essential oils, and biotechnological techniques like mite trapping.
Therefore, successful therapy and preventing harsh chemical use can reduce bee
mortality and economic losses.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023",
title = "REVIEW PAPER ON VARROA INFESTATION, DETECTION AND PREVENTION IN BEEHIVES",
pages = "51-44",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7754"
}

Jovanović, N., Zlatanović, I., Simonović, V., Rudonja, N., Nedić, N.,& Firfiris, V.. (2023). REVIEW PAPER ON VARROA INFESTATION, DETECTION AND PREVENTION IN BEEHIVES. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
University of Belgrade, Faculty of Agriculture, Serbia.., 44-51.
https://hdl.handle.net/21.15107/rcub_machinery_7754

Jovanović N, Zlatanović I, Simonović V, Rudonja N, Nedić N, Firfiris V. REVIEW PAPER ON VARROA INFESTATION, DETECTION AND PREVENTION IN BEEHIVES. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023. 2023;:44-51.
https://hdl.handle.net/21.15107/rcub_machinery_7754 .

Jovanović, Nemanja, Zlatanović, Ivan, Simonović, Vojislav, Rudonja, Nedžad, Nedić, Nebojša, Firfiris, Vasileios, "REVIEW PAPER ON VARROA INFESTATION, DETECTION AND PREVENTION IN BEEHIVES" in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023 (2023):44-51,
https://hdl.handle.net/21.15107/rcub_machinery_7754 .

TY  - CONF
AU  - Yacouba, Kanoute
AU  - Zlatanović, Ivan
AU  - Rudonja, Nedžad
AU  - Simonović, Vojislav
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7755
AB  - This study consists at the modeling and the application of numerical
methods in order to optimize the performance of a flat-water solar collector under the
meteorological conditions of Mali, particularly in the month of January when the
sunshine is low and hot water consumption significant. The results obtained show that
when the thickness of the glass pane is increased from 2mm to 5mm, the instantaneous
efficiency of the solar collector at the beginning increases from 41.46% to 41.49% with
a maximum solar radiation intensity of 462 W/m2 and an average wind speed of 3.5 m/s.
When the thickness of the absorber is increased from 4mm to 5 mm, the instantaneous
efficiency of the solar collector can reach from 40.64% to 41.65%. When the absorber
thickness reaches 6mm, the instantaneous efficiency of the solar collector decreases from
42.35 to 42.14%. Increasing the thickness of the collector's absorber plate can
significantly improve the collector's instantaneous efficiency. Increasing the thickness of
the lateral side insulation does not contribute to improving the collector's instantaneous
efficiency. When the thickness of the lateral side insulation of the collector increases from
2cm to 8cm, the instantaneous efficiency of the collector increases from 53.13% to
53.0%. When the mass flow rate of the fluid increases from 0.0265 Kg/s to 0.04 kg/s, the
efficiency increases from 53.14% to 59.18%. This study also showed that these
parameters have very little influence on the temperature of the heat transfer fluid.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
T1  - OPTIMIZATION OF YIELD OF A FLAT PLATE SOLAR WATER COLLECTOR BY SIMULATION WITH MATLAB
EP  - 240
SP  - 229
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7755
ER  - 

@conference{
author = "Yacouba, Kanoute and Zlatanović, Ivan and Rudonja, Nedžad and Simonović, Vojislav",
year = "2023",
abstract = "This study consists at the modeling and the application of numerical
methods in order to optimize the performance of a flat-water solar collector under the
meteorological conditions of Mali, particularly in the month of January when the
sunshine is low and hot water consumption significant. The results obtained show that
when the thickness of the glass pane is increased from 2mm to 5mm, the instantaneous
efficiency of the solar collector at the beginning increases from 41.46% to 41.49% with
a maximum solar radiation intensity of 462 W/m2 and an average wind speed of 3.5 m/s.
When the thickness of the absorber is increased from 4mm to 5 mm, the instantaneous
efficiency of the solar collector can reach from 40.64% to 41.65%. When the absorber
thickness reaches 6mm, the instantaneous efficiency of the solar collector decreases from
42.35 to 42.14%. Increasing the thickness of the collector's absorber plate can
significantly improve the collector's instantaneous efficiency. Increasing the thickness of
the lateral side insulation does not contribute to improving the collector's instantaneous
efficiency. When the thickness of the lateral side insulation of the collector increases from
2cm to 8cm, the instantaneous efficiency of the collector increases from 53.13% to
53.0%. When the mass flow rate of the fluid increases from 0.0265 Kg/s to 0.04 kg/s, the
efficiency increases from 53.14% to 59.18%. This study also showed that these
parameters have very little influence on the temperature of the heat transfer fluid.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023",
title = "OPTIMIZATION OF YIELD OF A FLAT PLATE SOLAR WATER COLLECTOR BY SIMULATION WITH MATLAB",
pages = "240-229",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7755"
}

Yacouba, K., Zlatanović, I., Rudonja, N.,& Simonović, V.. (2023). OPTIMIZATION OF YIELD OF A FLAT PLATE SOLAR WATER COLLECTOR BY SIMULATION WITH MATLAB. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
University of Belgrade, Faculty of Agriculture, Serbia.., 229-240.
https://hdl.handle.net/21.15107/rcub_machinery_7755

Yacouba K, Zlatanović I, Rudonja N, Simonović V. OPTIMIZATION OF YIELD OF A FLAT PLATE SOLAR WATER COLLECTOR BY SIMULATION WITH MATLAB. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023. 2023;:229-240.
https://hdl.handle.net/21.15107/rcub_machinery_7755 .

Yacouba, Kanoute, Zlatanović, Ivan, Rudonja, Nedžad, Simonović, Vojislav, "OPTIMIZATION OF YIELD OF A FLAT PLATE SOLAR WATER COLLECTOR BY SIMULATION WITH MATLAB" in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023 (2023):229-240,
https://hdl.handle.net/21.15107/rcub_machinery_7755 .

TY  - CONF
AU  - Jarić, Marko
AU  - Petronić, Sanja
AU  - Budimir, Nikola
AU  - Polić, Suzana
AU  - Rudonja, Nedžad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7756
AB  - Heat exchangers used in agricultural processes are mainly
manufactured by three technologies: brazed copper-brass, mechanically assembled
aluminum and brazed aluminum. The appropriate choice depends on various criteria:
price, weight, corrosion resistance, performance in a limited volume, required pressure
drops, temperature resistance, reliability, etc. Brazed aluminum is increasingly popular
due to several advantages, such as resistance to high pressure and temperatures.
Aluminum heat exchangers can be exposed to external and internal corrosion in
various environmental conditions. Corrosion has a negative impact on the mechanical
integrity and thermal performance of heat exchangers. Therefore, specific operating
design parameters, as well as mechanical design characteristics, are of great
importance for consideration in construction. Proper selection and design can ensure
the successful and safe operation of the heat exchanger and the plant itself. The HVAC
industry is directed towards the search for the best solutions in order to increase the
performance, energy efficiency and durability of the equipment while reducing the costs
of their production. Aluminum pipes and other aluminum components are increasingly
replacing copper pipes. In this paper, application, design, assembling process and
operation considerations for brazed aluminum heat exchangers used for needs in
agricultural processes have presented.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
T1  - DIMENSIONING AND ASSEMBLYING OF BRAZED ALUMINIUM HEAT EXCHANGER FOR NEEDS OF AGRICULTURAL PROCESS PLANTS
EP  - 280
SP  - 271
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7756
ER  - 

@conference{
author = "Jarić, Marko and Petronić, Sanja and Budimir, Nikola and Polić, Suzana and Rudonja, Nedžad",
year = "2023",
abstract = "Heat exchangers used in agricultural processes are mainly
manufactured by three technologies: brazed copper-brass, mechanically assembled
aluminum and brazed aluminum. The appropriate choice depends on various criteria:
price, weight, corrosion resistance, performance in a limited volume, required pressure
drops, temperature resistance, reliability, etc. Brazed aluminum is increasingly popular
due to several advantages, such as resistance to high pressure and temperatures.
Aluminum heat exchangers can be exposed to external and internal corrosion in
various environmental conditions. Corrosion has a negative impact on the mechanical
integrity and thermal performance of heat exchangers. Therefore, specific operating
design parameters, as well as mechanical design characteristics, are of great
importance for consideration in construction. Proper selection and design can ensure
the successful and safe operation of the heat exchanger and the plant itself. The HVAC
industry is directed towards the search for the best solutions in order to increase the
performance, energy efficiency and durability of the equipment while reducing the costs
of their production. Aluminum pipes and other aluminum components are increasingly
replacing copper pipes. In this paper, application, design, assembling process and
operation considerations for brazed aluminum heat exchangers used for needs in
agricultural processes have presented.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023",
title = "DIMENSIONING AND ASSEMBLYING OF BRAZED ALUMINIUM HEAT EXCHANGER FOR NEEDS OF AGRICULTURAL PROCESS PLANTS",
pages = "280-271",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7756"
}

Jarić, M., Petronić, S., Budimir, N., Polić, S.,& Rudonja, N.. (2023). DIMENSIONING AND ASSEMBLYING OF BRAZED ALUMINIUM HEAT EXCHANGER FOR NEEDS OF AGRICULTURAL PROCESS PLANTS. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023
University of Belgrade, Faculty of Agriculture, Serbia.., 271-280.
https://hdl.handle.net/21.15107/rcub_machinery_7756

Jarić M, Petronić S, Budimir N, Polić S, Rudonja N. DIMENSIONING AND ASSEMBLYING OF BRAZED ALUMINIUM HEAT EXCHANGER FOR NEEDS OF AGRICULTURAL PROCESS PLANTS. in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023. 2023;:271-280.
https://hdl.handle.net/21.15107/rcub_machinery_7756 .

Jarić, Marko, Petronić, Sanja, Budimir, Nikola, Polić, Suzana, Rudonja, Nedžad, "DIMENSIONING AND ASSEMBLYING OF BRAZED ALUMINIUM HEAT EXCHANGER FOR NEEDS OF AGRICULTURAL PROCESS PLANTS" in Proceedings of The Sixth International Symposium on Agricultural Engineering ISAE-2023 (2023):271-280,
https://hdl.handle.net/21.15107/rcub_machinery_7756 .

TY  - JOUR
AU  - Petrov, Nevena
AU  - Mladenović, Milica R.
AU  - Rudonja, Nedžad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6898
AB  - With the significant use of biomass for energy purposes, as the only CO2-neutral carbon-based renewable energy source, besides several well-known advantages, certain disadvantages appear. One of them is the possible increased emission of nitrogen oxides, NOx, which is especially pronounced with the usage of agricultural biomass. Given the available resources of this biomass and increasingly stringent legal norms regarding NOx emissions, this problem needs special attention, which is the topic of this paper. The paper presents: mechanisms of NOx formation and conversion of nitrogen from fuel during combustion, a brief overview of available methods for denitrification, both conventional and newer ones that have not yet come to industrial-scale application. NOx emissions from biomass combustion are mainly caused by fuel-bound nitrogen, which is especially present in biomass with a high content of bound nitrogen such as agricultural biomass. Therefore, the focus is on selective non-catalytic reduction, SNCR, as a secondary measure of denitrification. Theoretical bases of SNCR, presentation of SNCR reagents, main pathways of chemical reduction reactions for different reagents, and reaction kinetics are given. Also, the general bases for setting numerical SNCR reduction models and reviewing existing ones, as well as experimental results from the available literature, are presented. Finally, examples of industrial applications of SNCR reactors and general recommendations for the application of this denitrification measure are introduced.
PB  - Institute of Chemical Engineering
PB  - Bulgarian Academy of Sciences
T2  - Bulgarian Chemical Communications
T1  - SNCR in biomass combustion facilities: from theories to existing models
EP  - 148
IS  - 2
SP  - 141
VL  - 55
DO  - 10.34049/bcc.55.2.AESMT22-05
ER  - 

@article{
author = "Petrov, Nevena and Mladenović, Milica R. and Rudonja, Nedžad",
year = "2023",
abstract = "With the significant use of biomass for energy purposes, as the only CO2-neutral carbon-based renewable energy source, besides several well-known advantages, certain disadvantages appear. One of them is the possible increased emission of nitrogen oxides, NOx, which is especially pronounced with the usage of agricultural biomass. Given the available resources of this biomass and increasingly stringent legal norms regarding NOx emissions, this problem needs special attention, which is the topic of this paper. The paper presents: mechanisms of NOx formation and conversion of nitrogen from fuel during combustion, a brief overview of available methods for denitrification, both conventional and newer ones that have not yet come to industrial-scale application. NOx emissions from biomass combustion are mainly caused by fuel-bound nitrogen, which is especially present in biomass with a high content of bound nitrogen such as agricultural biomass. Therefore, the focus is on selective non-catalytic reduction, SNCR, as a secondary measure of denitrification. Theoretical bases of SNCR, presentation of SNCR reagents, main pathways of chemical reduction reactions for different reagents, and reaction kinetics are given. Also, the general bases for setting numerical SNCR reduction models and reviewing existing ones, as well as experimental results from the available literature, are presented. Finally, examples of industrial applications of SNCR reactors and general recommendations for the application of this denitrification measure are introduced.",
publisher = "Institute of Chemical Engineering, Bulgarian Academy of Sciences",
journal = "Bulgarian Chemical Communications",
title = "SNCR in biomass combustion facilities: from theories to existing models",
pages = "148-141",
number = "2",
volume = "55",
doi = "10.34049/bcc.55.2.AESMT22-05"
}

Petrov, N., Mladenović, M. R.,& Rudonja, N.. (2023). SNCR in biomass combustion facilities: from theories to existing models. in Bulgarian Chemical Communications
Institute of Chemical Engineering., 55(2), 141-148.
https://doi.org/10.34049/bcc.55.2.AESMT22-05

Petrov N, Mladenović MR, Rudonja N. SNCR in biomass combustion facilities: from theories to existing models. in Bulgarian Chemical Communications. 2023;55(2):141-148.
doi:10.34049/bcc.55.2.AESMT22-05 .

Petrov, Nevena, Mladenović, Milica R., Rudonja, Nedžad, "SNCR in biomass combustion facilities: from theories to existing models" in Bulgarian Chemical Communications, 55, no. 2 (2023):141-148,
https://doi.org/10.34049/bcc.55.2.AESMT22-05 . .

TY  - CONF
AU  - Petrov, Nevena
AU  - Mladenović, Milica R.
AU  - Rudonja, Nedžad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5254
AB  - The paper addresses a potential problem related to biomass combustion, which is the increased emission of nitrogen oxides, especially pronounced with the usage of agricultural biomass. The paper presents: mechanisms of NOx formation and conversion of nitrogen from fuel during combustion, a brief overview of available methods for denitrification, both conventional and newer ones that have not yet come to industrial-scale application. The aim is to give an objective comparison of the available measures that correspond to the temperature range of biomass combustion. NOx emissions from biomass combustion are mainly caused by fuel-bound nitrogen, therefore the focus is on selective non-catalytic reduction, SNCR, as a secondary measure of denitrification. Main pathways of SNCR chemical reduction reactions for different reagents and reaction kinetics are given. Also, a comparison of SNCR with primary measures and other secondary measures is given, with the main advantages and disadvantages for each one of them.
PB  - Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia
C3  - Proceedings of short papers of the Fifth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `22
T1  - Guide for the SNCR and other deNOx measures in biomass facilities
EP  - 76
SP  - 75
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5254
ER  - 

@conference{
author = "Petrov, Nevena and Mladenović, Milica R. and Rudonja, Nedžad",
year = "2022",
abstract = "The paper addresses a potential problem related to biomass combustion, which is the increased emission of nitrogen oxides, especially pronounced with the usage of agricultural biomass. The paper presents: mechanisms of NOx formation and conversion of nitrogen from fuel during combustion, a brief overview of available methods for denitrification, both conventional and newer ones that have not yet come to industrial-scale application. The aim is to give an objective comparison of the available measures that correspond to the temperature range of biomass combustion. NOx emissions from biomass combustion are mainly caused by fuel-bound nitrogen, therefore the focus is on selective non-catalytic reduction, SNCR, as a secondary measure of denitrification. Main pathways of SNCR chemical reduction reactions for different reagents and reaction kinetics are given. Also, a comparison of SNCR with primary measures and other secondary measures is given, with the main advantages and disadvantages for each one of them.",
publisher = "Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia",
journal = "Proceedings of short papers of the Fifth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `22",
title = "Guide for the SNCR and other deNOx measures in biomass facilities",
pages = "76-75",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5254"
}

Petrov, N., Mladenović, M. R.,& Rudonja, N.. (2022). Guide for the SNCR and other deNOx measures in biomass facilities. in Proceedings of short papers of the Fifth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `22
Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia., 4, 75-76.
https://hdl.handle.net/21.15107/rcub_machinery_5254

Petrov N, Mladenović MR, Rudonja N. Guide for the SNCR and other deNOx measures in biomass facilities. in Proceedings of short papers of the Fifth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `22. 2022;4:75-76.
https://hdl.handle.net/21.15107/rcub_machinery_5254 .

Petrov, Nevena, Mladenović, Milica R., Rudonja, Nedžad, "Guide for the SNCR and other deNOx measures in biomass facilities" in Proceedings of short papers of the Fifth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `22, 4 (2022):75-76,
https://hdl.handle.net/21.15107/rcub_machinery_5254 .

TY  - CONF
AU  - Zlatanović, Ivan
AU  - Simonović, Vojislav
AU  - Rudonja, Nedžad
AU  - Firfiris, Vasileios
AU  - Marković, Dragan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5028
AB  - Ultrasonics is new science that is being intensively developed in recent years. Sound velocity is a valuable engineering tool and non-destructive, non-invasive, non-intrusive technique of measurement.  The authors were highly motivated to collect data from as many research papers as possible in order to see the possibilities and examples of applying this technology. The various effects of ultrasound were discussed and outlined in a context of different uses to accelerate or support agricultural production processes like: the effects of ultrasound waves, the commercial and diagnostical applications possibilities. The field of biotechnical engineering is very multidisciplinary and, accordingly, there is a diversity in approaches and possibilities of applying ultrasound. The overall conclusion of our work is that the use of ultrasound in biotechnical research brings various benefits, and in some cases, it is extremely supported and recommended. Also, there is great flexibility in the ways in which this technology can be applied, which leaves engineers a lot of freedom in expressing creative solutions and applications.
PB  - Department of Mechanical Sciences, Rajalakshmi Engineering College
C3  - The International Conference on Energy, Smart Structure and Manufacturing - ICESSM2022
T1  - Technical review on the applications of ultrasound in the engineering of  biotechnical systems
SP  - Paper ID: ICESSM-021-EI
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5028
ER  - 

@conference{
author = "Zlatanović, Ivan and Simonović, Vojislav and Rudonja, Nedžad and Firfiris, Vasileios and Marković, Dragan",
year = "2022",
abstract = "Ultrasonics is new science that is being intensively developed in recent years. Sound velocity is a valuable engineering tool and non-destructive, non-invasive, non-intrusive technique of measurement.  The authors were highly motivated to collect data from as many research papers as possible in order to see the possibilities and examples of applying this technology. The various effects of ultrasound were discussed and outlined in a context of different uses to accelerate or support agricultural production processes like: the effects of ultrasound waves, the commercial and diagnostical applications possibilities. The field of biotechnical engineering is very multidisciplinary and, accordingly, there is a diversity in approaches and possibilities of applying ultrasound. The overall conclusion of our work is that the use of ultrasound in biotechnical research brings various benefits, and in some cases, it is extremely supported and recommended. Also, there is great flexibility in the ways in which this technology can be applied, which leaves engineers a lot of freedom in expressing creative solutions and applications.",
publisher = "Department of Mechanical Sciences, Rajalakshmi Engineering College",
journal = "The International Conference on Energy, Smart Structure and Manufacturing - ICESSM2022",
title = "Technical review on the applications of ultrasound in the engineering of  biotechnical systems",
pages = "Paper ID: ICESSM-021-EI",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5028"
}

Zlatanović, I., Simonović, V., Rudonja, N., Firfiris, V.,& Marković, D.. (2022). Technical review on the applications of ultrasound in the engineering of  biotechnical systems. in The International Conference on Energy, Smart Structure and Manufacturing - ICESSM2022
Department of Mechanical Sciences, Rajalakshmi Engineering College., Paper ID: ICESSM-021-EI.
https://hdl.handle.net/21.15107/rcub_machinery_5028

Zlatanović I, Simonović V, Rudonja N, Firfiris V, Marković D. Technical review on the applications of ultrasound in the engineering of  biotechnical systems. in The International Conference on Energy, Smart Structure and Manufacturing - ICESSM2022. 2022;:Paper ID: ICESSM-021-EI.
https://hdl.handle.net/21.15107/rcub_machinery_5028 .

Zlatanović, Ivan, Simonović, Vojislav, Rudonja, Nedžad, Firfiris, Vasileios, Marković, Dragan, "Technical review on the applications of ultrasound in the engineering of  biotechnical systems" in The International Conference on Energy, Smart Structure and Manufacturing - ICESSM2022 (2022):Paper ID: ICESSM-021-EI,
https://hdl.handle.net/21.15107/rcub_machinery_5028 .

TY  - CONF
AU  - Petrov, Nevena
AU  - Mladenović, Milica R.
AU  - Rudonja, Nedžad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5231
AB  - Biomass combustion has many advantages compared to fossil fuels due to reduction
of carbon dioxide emissions, but several issues are present during biomass combustion. One that
must always be considered is emission of nitrogen oxides (NOx), which have significant impact on
the environment and health. At biomass combustion, main mechanism responsible for NOx
emission is oxidation of fuel-bound nitrogen. Increased NOx emissions are particularly present at
agricultural biomass combustion, due to its increased nitrogen content, which is further expressed
by the use of nitrogen fertilizer. Denitrification methods are classified as pre-combustion,
combustion control and post-combustion (flue gas treatment) methods. Aim of this paper is to
provide insight in different flue gas denitrification methods (DeNOx measures) from the review of
existing literature, with emphasis on post-combustion methods, since they have higher efficiency.
Also, pre-combustion and combustion control methods at agricultural biomass combustion often
do not provide reduction below emission standards. Selective catalytic (SCR) and selective noncatalytic
reduction (SNCR), wet scrubbing, adsorption, electron beam, electrochemical method,
non-thermal plasma and microbial approach were considered. For each method, mechanism of
NOx reduction is given and discussed, alongside with efficiency that could be achieved. Overall
comparison of advantages and disadvantages for these methods is provided. Further research of
denitrification and optimization of described methods, to overcome NOx emission problem is
required. Application of these methods in commercial use and increasing their efficiency, while
solving cost and methods disadvantages, is key for biomass to be used as a renewable energy
source and fossil fuel replacement.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
T1  - SYSTEMS FOR FLUE GASES TREATMENT AT THE COMBUSTION OF (AGRICULTURAL) BIOMASS
EP  - III-39
SP  - III-30
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5231
ER  - 

@conference{
author = "Petrov, Nevena and Mladenović, Milica R. and Rudonja, Nedžad",
year = "2021",
abstract = "Biomass combustion has many advantages compared to fossil fuels due to reduction
of carbon dioxide emissions, but several issues are present during biomass combustion. One that
must always be considered is emission of nitrogen oxides (NOx), which have significant impact on
the environment and health. At biomass combustion, main mechanism responsible for NOx
emission is oxidation of fuel-bound nitrogen. Increased NOx emissions are particularly present at
agricultural biomass combustion, due to its increased nitrogen content, which is further expressed
by the use of nitrogen fertilizer. Denitrification methods are classified as pre-combustion,
combustion control and post-combustion (flue gas treatment) methods. Aim of this paper is to
provide insight in different flue gas denitrification methods (DeNOx measures) from the review of
existing literature, with emphasis on post-combustion methods, since they have higher efficiency.
Also, pre-combustion and combustion control methods at agricultural biomass combustion often
do not provide reduction below emission standards. Selective catalytic (SCR) and selective noncatalytic
reduction (SNCR), wet scrubbing, adsorption, electron beam, electrochemical method,
non-thermal plasma and microbial approach were considered. For each method, mechanism of
NOx reduction is given and discussed, alongside with efficiency that could be achieved. Overall
comparison of advantages and disadvantages for these methods is provided. Further research of
denitrification and optimization of described methods, to overcome NOx emission problem is
required. Application of these methods in commercial use and increasing their efficiency, while
solving cost and methods disadvantages, is key for biomass to be used as a renewable energy
source and fossil fuel replacement.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021",
title = "SYSTEMS FOR FLUE GASES TREATMENT AT THE COMBUSTION OF (AGRICULTURAL) BIOMASS",
pages = "III-39-III-30",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5231"
}

Petrov, N., Mladenović, M. R.,& Rudonja, N.. (2021). SYSTEMS FOR FLUE GASES TREATMENT AT THE COMBUSTION OF (AGRICULTURAL) BIOMASS. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
University of Belgrade, Faculty of Agriculture, Serbia.., III-30-III-39.
https://hdl.handle.net/21.15107/rcub_machinery_5231

Petrov N, Mladenović MR, Rudonja N. SYSTEMS FOR FLUE GASES TREATMENT AT THE COMBUSTION OF (AGRICULTURAL) BIOMASS. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021. 2021;:III-30-III-39.
https://hdl.handle.net/21.15107/rcub_machinery_5231 .

Petrov, Nevena, Mladenović, Milica R., Rudonja, Nedžad, "SYSTEMS FOR FLUE GASES TREATMENT AT THE COMBUSTION OF (AGRICULTURAL) BIOMASS" in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021 (2021):III-30-III-39,
https://hdl.handle.net/21.15107/rcub_machinery_5231 .

TY  - CONF
AU  - Rudonja, Nedžad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5228
AB  - Thermal energy storage (TES) is a technology that gives an opportunity for using
energy in the period when the production of energy is at a lower level or does not exist. TES are
used when there is a mismatch between energy demand and energy supply. They increase heat
generation capasity, enable better operation, increase system reliability, shift energy purchases
from high to low-cost periods, they take role of expansion vessel and so on. This paper will present
the field of Thermal Energy Storages (TES), methods and materials that are used as working
mediums. The problems of using PCM materials as storing mediums were shown and discused. The
technics for overcoming the problem of low thermal conductivity of PCM were listed and
described. At the end of the article the main applications of TES were given.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
T1  - THERMAL ENERGY STORAGES – MATERIALS AND APPLICATION
EP  - III-45
SP  - III-28
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5228
ER  - 

@conference{
author = "Rudonja, Nedžad",
year = "2021",
abstract = "Thermal energy storage (TES) is a technology that gives an opportunity for using
energy in the period when the production of energy is at a lower level or does not exist. TES are
used when there is a mismatch between energy demand and energy supply. They increase heat
generation capasity, enable better operation, increase system reliability, shift energy purchases
from high to low-cost periods, they take role of expansion vessel and so on. This paper will present
the field of Thermal Energy Storages (TES), methods and materials that are used as working
mediums. The problems of using PCM materials as storing mediums were shown and discused. The
technics for overcoming the problem of low thermal conductivity of PCM were listed and
described. At the end of the article the main applications of TES were given.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021",
title = "THERMAL ENERGY STORAGES – MATERIALS AND APPLICATION",
pages = "III-45-III-28",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5228"
}

Rudonja, N.. (2021). THERMAL ENERGY STORAGES – MATERIALS AND APPLICATION. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
University of Belgrade, Faculty of Agriculture, Serbia.., III-28-III-45.
https://hdl.handle.net/21.15107/rcub_machinery_5228

Rudonja N. THERMAL ENERGY STORAGES – MATERIALS AND APPLICATION. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021. 2021;:III-28-III-45.
https://hdl.handle.net/21.15107/rcub_machinery_5228 .

Rudonja, Nedžad, "THERMAL ENERGY STORAGES – MATERIALS AND APPLICATION" in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021 (2021):III-28-III-45,
https://hdl.handle.net/21.15107/rcub_machinery_5228 .

TY  - CONF
AU  - Milutinović, Nada
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
AU  - Živković, Goran
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5245
AB  - In this study it has been presented performance analysis, from the point of First and Second Law of Thermodynamic,
of an ORC for working fluids: R113, R245fa and R600a. Two heat sources were used- geothermal hot water from
Vranjska Banja and wood biomass. Properties of the working fluids were obtained from Reference Fluid Properties
(Refprop) and simulation was made with our own code. R600a showed better performance than R245fa with turbine
power output 3.39 MW , thermal efficiency 14.01%  and exergy efficiency of 33.3%.
PB  - Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia
C3  - Proceedings of short papers of the Fourth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `21
T1  - Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case
EP  - 130
SP  - 129
VL  - 3
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5245
ER  - 

@conference{
author = "Milutinović, Nada and Rudonja, Nedžad and Gojak, Milan and Živković, Goran",
year = "2021",
abstract = "In this study it has been presented performance analysis, from the point of First and Second Law of Thermodynamic,
of an ORC for working fluids: R113, R245fa and R600a. Two heat sources were used- geothermal hot water from
Vranjska Banja and wood biomass. Properties of the working fluids were obtained from Reference Fluid Properties
(Refprop) and simulation was made with our own code. R600a showed better performance than R245fa with turbine
power output 3.39 MW , thermal efficiency 14.01%  and exergy efficiency of 33.3%.",
publisher = "Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia",
journal = "Proceedings of short papers of the Fourth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `21",
title = "Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case",
pages = "130-129",
volume = "3",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5245"
}

Milutinović, N., Rudonja, N., Gojak, M.,& Živković, G.. (2021). Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case. in Proceedings of short papers of the Fourth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `21
Institute of Chemical Engineering Bulgarian Academy of Sciences (BAS) Sofia, Bulgaria Sofia., 3, 129-130.
https://hdl.handle.net/21.15107/rcub_machinery_5245

Milutinović N, Rudonja N, Gojak M, Živković G. Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case. in Proceedings of short papers of the Fourth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `21. 2021;3:129-130.
https://hdl.handle.net/21.15107/rcub_machinery_5245 .

Milutinović, Nada, Rudonja, Nedžad, Gojak, Milan, Živković, Goran, "Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case" in Proceedings of short papers of the Fourth international Scientific Conference ALTERNATIVE ENERGY SOURCES, MATERIALS AND TECHNOLOGIES, AESMT `21, 3 (2021):129-130,
https://hdl.handle.net/21.15107/rcub_machinery_5245 .

TY  - CONF
AU  - Milutinović, Nada
AU  - Cvetinović, Dejan
AU  - Erić, Aleksandar M.
AU  - Živković, Nikola
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5242
AB  - Methodology using the thermodynamic equilibrium composition calculation to optimise the high-temperature organic waste treatment in thermal plasma was developed. The methodology was demonstrated in the case of high-temperature treatment of polychlorinated biphenyl (PCB) in a thermal plasma reactor using two different working media, air and water vapour. Calculated results obtained in this analysis show composition of combustible and harmful chemical species formed in the PCB oil decomposition process. Optimisation of the composition of the combustibles can suggest the most economical parameters of the process. Toxic substances emissions are one of the limiting factors in the process of optimization. This analysis can be considered as the first step towards defining optimal operating parameters of the pilot-plasma facility for waste treatment from the ecological and economical aspects.
PB  - Society of Thermal Engineers of Serbia
C3  - Full Papers Proceedings of Power Plants 2021
T1  - THERMODYNAMIC TOOLS FOR OPTIMISATION OF THE HIGH-TEMPERATURE DECOMPOSITION OF PCB IN THERMAL PLASMA
EP  - 296
SP  - 286
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5242
ER  - 

@conference{
author = "Milutinović, Nada and Cvetinović, Dejan and Erić, Aleksandar M. and Živković, Nikola and Rudonja, Nedžad and Gojak, Milan",
year = "2021",
abstract = "Methodology using the thermodynamic equilibrium composition calculation to optimise the high-temperature organic waste treatment in thermal plasma was developed. The methodology was demonstrated in the case of high-temperature treatment of polychlorinated biphenyl (PCB) in a thermal plasma reactor using two different working media, air and water vapour. Calculated results obtained in this analysis show composition of combustible and harmful chemical species formed in the PCB oil decomposition process. Optimisation of the composition of the combustibles can suggest the most economical parameters of the process. Toxic substances emissions are one of the limiting factors in the process of optimization. This analysis can be considered as the first step towards defining optimal operating parameters of the pilot-plasma facility for waste treatment from the ecological and economical aspects.",
publisher = "Society of Thermal Engineers of Serbia",
journal = "Full Papers Proceedings of Power Plants 2021",
title = "THERMODYNAMIC TOOLS FOR OPTIMISATION OF THE HIGH-TEMPERATURE DECOMPOSITION OF PCB IN THERMAL PLASMA",
pages = "296-286",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5242"
}

Milutinović, N., Cvetinović, D., Erić, A. M., Živković, N., Rudonja, N.,& Gojak, M.. (2021). THERMODYNAMIC TOOLS FOR OPTIMISATION OF THE HIGH-TEMPERATURE DECOMPOSITION OF PCB IN THERMAL PLASMA. in Full Papers Proceedings of Power Plants 2021
Society of Thermal Engineers of Serbia., 286-296.
https://hdl.handle.net/21.15107/rcub_machinery_5242

Milutinović N, Cvetinović D, Erić AM, Živković N, Rudonja N, Gojak M. THERMODYNAMIC TOOLS FOR OPTIMISATION OF THE HIGH-TEMPERATURE DECOMPOSITION OF PCB IN THERMAL PLASMA. in Full Papers Proceedings of Power Plants 2021. 2021;:286-296.
https://hdl.handle.net/21.15107/rcub_machinery_5242 .

Milutinović, Nada, Cvetinović, Dejan, Erić, Aleksandar M., Živković, Nikola, Rudonja, Nedžad, Gojak, Milan, "THERMODYNAMIC TOOLS FOR OPTIMISATION OF THE HIGH-TEMPERATURE DECOMPOSITION OF PCB IN THERMAL PLASMA" in Full Papers Proceedings of Power Plants 2021 (2021):286-296,
https://hdl.handle.net/21.15107/rcub_machinery_5242 .

TY  - JOUR
AU  - Gojak, Milan
AU  - Kijanović, Aleksandar I.
AU  - Rudonja, Nedžad
AU  - Todorović, Ružica
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3610
AB  - This article presents experimental and numerical determinations of thermal transmittance performed on three different types of window frames (vinyl, aluminium, and wooden) within the same insulated glass unit. Good agreement between experimental and numerical results was attained. Using the numerical models, thermal improvement techniques of the frames and their influence on thermal transmittance of frames were studied. The first thermal improvement technique was using the insulation materials inserted inside large air cavities. By filling the cavity of vinyl frame with the polyurethane foam, thermal transmittance of vinyl frame was lowered by 10%. The second technique was based on repeating the procedure with materials installed inside frames with the materials that have lower thermal conductivity. This technique can be applied on thermal breaks and on steel profiles inside cavities. The result of this thermal improvement (attained by replacing thermal break material with material that has lower thermal conductivity) was certain reduction of the thermal transmittance of frames, by 9%. Using stainless steel instead of the oxidized steel was reduction of the thermal transmittance of vinyl frame by 3%. For the case of wooden frames the influence of shifting glazing unit deeper into profile upon the thermal transmittance of the frame was analyzed. Installing the glass unit by 5 mm deeper into the wooden frame reduced glass thermal transmittance by 5%.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Experimental and numerical investigation of thermal improvement of window frames
EP  - 2588
IS  - 4
SP  - 2579
VL  - 25
DO  - 10.2298/TSCI200120189G
ER  - 

@article{
author = "Gojak, Milan and Kijanović, Aleksandar I. and Rudonja, Nedžad and Todorović, Ružica",
year = "2021",
abstract = "This article presents experimental and numerical determinations of thermal transmittance performed on three different types of window frames (vinyl, aluminium, and wooden) within the same insulated glass unit. Good agreement between experimental and numerical results was attained. Using the numerical models, thermal improvement techniques of the frames and their influence on thermal transmittance of frames were studied. The first thermal improvement technique was using the insulation materials inserted inside large air cavities. By filling the cavity of vinyl frame with the polyurethane foam, thermal transmittance of vinyl frame was lowered by 10%. The second technique was based on repeating the procedure with materials installed inside frames with the materials that have lower thermal conductivity. This technique can be applied on thermal breaks and on steel profiles inside cavities. The result of this thermal improvement (attained by replacing thermal break material with material that has lower thermal conductivity) was certain reduction of the thermal transmittance of frames, by 9%. Using stainless steel instead of the oxidized steel was reduction of the thermal transmittance of vinyl frame by 3%. For the case of wooden frames the influence of shifting glazing unit deeper into profile upon the thermal transmittance of the frame was analyzed. Installing the glass unit by 5 mm deeper into the wooden frame reduced glass thermal transmittance by 5%.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Experimental and numerical investigation of thermal improvement of window frames",
pages = "2588-2579",
number = "4",
volume = "25",
doi = "10.2298/TSCI200120189G"
}

Gojak, M., Kijanović, A. I., Rudonja, N.,& Todorović, R.. (2021). Experimental and numerical investigation of thermal improvement of window frames. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(4), 2579-2588.
https://doi.org/10.2298/TSCI200120189G

Gojak M, Kijanović AI, Rudonja N, Todorović R. Experimental and numerical investigation of thermal improvement of window frames. in Thermal Science. 2021;25(4):2579-2588.
doi:10.2298/TSCI200120189G .

Gojak, Milan, Kijanović, Aleksandar I., Rudonja, Nedžad, Todorović, Ružica, "Experimental and numerical investigation of thermal improvement of window frames" in Thermal Science, 25, no. 4 (2021):2579-2588,
https://doi.org/10.2298/TSCI200120189G . .

TY  - CONF
AU  - Gojak, Milan
AU  - Todorović, Ružica
AU  - Rudonja, Nedžad
AU  - Kovačević, Srđan
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5241
AB  - Nowadays people face challenges of rising energy consumption, energy costs,
environmental impacts, consequence of global warming etc. All trends are directed to reduce those
negative effects. In terms of energy consumption, the main goal of any production is to reduce
energy consumption per product unit. At the goat farm and dairy Beocapra, located in Kukojevci
in Serbia, energy was used for technological processes that include heating and cooling different
types of working mediums as well as for heating and cooling spaces of the dairy. In this article the
structure of used energy, energy quantities, temperature regimes and quantities of mediums and
power consumption of the biggest systems were presented. The measures for improving energy
efficiency and possibilities of using renewable energy sources for covering a part of energy
demands were proposed. At the end of the article benefits of using proposed renewable energy
sources were given.
PB  - University of Belgrade, Faculty of Agriculture, Serbia.
C3  - Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
T1  - ANALYSIS OF ENERGY USE AND POSSIBILITY OF IMPROVING ENERGY EFFICIENCY IN GOAT FARMDAIRY "BEOCAPRA", SERBIA
EP  - III-54
SP  - III-46
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5241
ER  - 

@conference{
author = "Gojak, Milan and Todorović, Ružica and Rudonja, Nedžad and Kovačević, Srđan",
year = "2021",
abstract = "Nowadays people face challenges of rising energy consumption, energy costs,
environmental impacts, consequence of global warming etc. All trends are directed to reduce those
negative effects. In terms of energy consumption, the main goal of any production is to reduce
energy consumption per product unit. At the goat farm and dairy Beocapra, located in Kukojevci
in Serbia, energy was used for technological processes that include heating and cooling different
types of working mediums as well as for heating and cooling spaces of the dairy. In this article the
structure of used energy, energy quantities, temperature regimes and quantities of mediums and
power consumption of the biggest systems were presented. The measures for improving energy
efficiency and possibilities of using renewable energy sources for covering a part of energy
demands were proposed. At the end of the article benefits of using proposed renewable energy
sources were given.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia.",
journal = "Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021",
title = "ANALYSIS OF ENERGY USE AND POSSIBILITY OF IMPROVING ENERGY EFFICIENCY IN GOAT FARMDAIRY "BEOCAPRA", SERBIA",
pages = "III-54-III-46",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5241"
}

Gojak, M., Todorović, R., Rudonja, N.,& Kovačević, S.. (2021). ANALYSIS OF ENERGY USE AND POSSIBILITY OF IMPROVING ENERGY EFFICIENCY IN GOAT FARMDAIRY "BEOCAPRA", SERBIA. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021
University of Belgrade, Faculty of Agriculture, Serbia.., III-46-III-54.
https://hdl.handle.net/21.15107/rcub_machinery_5241

Gojak M, Todorović R, Rudonja N, Kovačević S. ANALYSIS OF ENERGY USE AND POSSIBILITY OF IMPROVING ENERGY EFFICIENCY IN GOAT FARMDAIRY "BEOCAPRA", SERBIA. in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021. 2021;:III-46-III-54.
https://hdl.handle.net/21.15107/rcub_machinery_5241 .

Gojak, Milan, Todorović, Ružica, Rudonja, Nedžad, Kovačević, Srđan, "ANALYSIS OF ENERGY USE AND POSSIBILITY OF IMPROVING ENERGY EFFICIENCY IN GOAT FARMDAIRY "BEOCAPRA", SERBIA" in Proceedings of The Fifth International Symposium on Agricultural Engineering ISAE-2021 (2021):III-46-III-54,
https://hdl.handle.net/21.15107/rcub_machinery_5241 .

Gojak, M.,& Rudonja, N.. (2020). Соларни термички системи. 
Универзитет у Београду-Машински факултет., 1-231.
https://hdl.handle.net/21.15107/rcub_machinery_7757

Gojak M, Rudonja N. Соларни термички системи. 2020;:1-231.
https://hdl.handle.net/21.15107/rcub_machinery_7757 .

Gojak, Milan, Rudonja, Nedžad, "Соларни термички системи" (2020):1-231,
https://hdl.handle.net/21.15107/rcub_machinery_7757 .

TY  - JOUR
AU  - Nedić, Nebojša M.
AU  - Gojak, Milan
AU  - Zlatanović, Ivan
AU  - Rudonja, Nedžad
AU  - Lazarević, Kristina B.
AU  - Drazić, Milan S.
AU  - Gligorević, Kosta
AU  - Pajić, Miloš B.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3276
AB  - The aim of this research is to study the drying kinetics of vacuum-dried and freeze-dried bee honey produced from two different varieties: Sunflower honey (Helianthus Annuus L.) and Acacia honey (Robinia pseudo acacia L.). Vacuum drying treatments were carried out with the honey samples' initial temperatures of +25 degrees C, -20 degrees C, and -40 degrees C. Water content, total soluble solids, as well as the water activity of fresh and dried honey samples were determined. Freeze-drying of bee honey with initial sample temperature of -40 degrees C has resulted in shorter drying time (7-9 hours), moisture content (10%-12%), water activity (0.405-0.427 aW) and effective moisture diffusivity coefficient (8.26.10-7-9.51.0-7 m(2)/s). The high-performance liquid chromatography method was used when analyzing the impact that drying pre-treatments had on honey quality. The application of pre-treatments has led to an increase in hydroxy-methyl-furfural by 39-71%, and a decrease in diastase activity by 17-36%, all compared to fresh honey samples. The solutions of Verma model proved to be the best fit with the experimental results.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Study of vacuum and freeze drying of bee honey
EP  - 4251
IS  - 6
SP  - 4241
VL  - 24
DO  - 10.2298/TSCI200317194N
ER  - 

@article{
author = "Nedić, Nebojša M. and Gojak, Milan and Zlatanović, Ivan and Rudonja, Nedžad and Lazarević, Kristina B. and Drazić, Milan S. and Gligorević, Kosta and Pajić, Miloš B.",
year = "2020",
abstract = "The aim of this research is to study the drying kinetics of vacuum-dried and freeze-dried bee honey produced from two different varieties: Sunflower honey (Helianthus Annuus L.) and Acacia honey (Robinia pseudo acacia L.). Vacuum drying treatments were carried out with the honey samples' initial temperatures of +25 degrees C, -20 degrees C, and -40 degrees C. Water content, total soluble solids, as well as the water activity of fresh and dried honey samples were determined. Freeze-drying of bee honey with initial sample temperature of -40 degrees C has resulted in shorter drying time (7-9 hours), moisture content (10%-12%), water activity (0.405-0.427 aW) and effective moisture diffusivity coefficient (8.26.10-7-9.51.0-7 m(2)/s). The high-performance liquid chromatography method was used when analyzing the impact that drying pre-treatments had on honey quality. The application of pre-treatments has led to an increase in hydroxy-methyl-furfural by 39-71%, and a decrease in diastase activity by 17-36%, all compared to fresh honey samples. The solutions of Verma model proved to be the best fit with the experimental results.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Study of vacuum and freeze drying of bee honey",
pages = "4251-4241",
number = "6",
volume = "24",
doi = "10.2298/TSCI200317194N"
}

Nedić, N. M., Gojak, M., Zlatanović, I., Rudonja, N., Lazarević, K. B., Drazić, M. S., Gligorević, K.,& Pajić, M. B.. (2020). Study of vacuum and freeze drying of bee honey. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 24(6), 4241-4251.
https://doi.org/10.2298/TSCI200317194N

Nedić NM, Gojak M, Zlatanović I, Rudonja N, Lazarević KB, Drazić MS, Gligorević K, Pajić MB. Study of vacuum and freeze drying of bee honey. in Thermal Science. 2020;24(6):4241-4251.
doi:10.2298/TSCI200317194N .

Nedić, Nebojša M., Gojak, Milan, Zlatanović, Ivan, Rudonja, Nedžad, Lazarević, Kristina B., Drazić, Milan S., Gligorević, Kosta, Pajić, Miloš B., "Study of vacuum and freeze drying of bee honey" in Thermal Science, 24, no. 6 (2020):4241-4251,
https://doi.org/10.2298/TSCI200317194N . .

TY  - CONF
AU  - Kovačević, Ivana
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4902
AB  - In today’s modern world, development of industry and technology has led to the increase in energy demand. Hence, more fossil fuels are burnt in order to cover this demand. Due to the multiple disadvantages, as well as the neg-ative impact that burning of fossil fuels has on the environment, heat pumps are gaining more importance when provid-ing energy for heating. This paper is aimed at conducting thermodynamic optimization of cascade heat pump in terms of different working fluid combinations and calculating maximum COP. In order to perform thermodynamic analysis, a software program that uses database of working fluids, was developed. The intermediate temperature within cascade heat exchanger represents a crucial parameter when analyzing and designing cascade heat pumps. Thus, when per-forming thermodynamic analysis, the intermediate temperature was varied in the range from 0⁰С to 25⁰С and the opti-mal temperature that provides maximum COP was defined. The analysis was performed on an air-to-water heat pump, that could be used for heating different types of buildings in places in Serbia where the outdoor design temperature is -20⁰С. The cascade heat pump would be used alongside radiator heating system operating at temperatures 70⁰С/50⁰С. Due to the high temperature difference between heat source and heat sink, cascade heat pumps have advantages over single stage or multi stage heat pumps. The optimization was performed on an air-to-water cascade heat pump where the evaporation and condensation temperatures were -25⁰С and 75⁰С, respectively. Following the conducted optimization, the analysis of the impact that isentropic efficiency of compressor has on COP was examined.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)
C3  - Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд
T1  - Thermodynamic Optimization Of Cascade Heat Pump
EP  - 21
SP  - 17
DO  - 10.24094/kghk.020.51.1.11
ER  - 

@conference{
author = "Kovačević, Ivana and Rudonja, Nedžad and Gojak, Milan",
year = "2020",
abstract = "In today’s modern world, development of industry and technology has led to the increase in energy demand. Hence, more fossil fuels are burnt in order to cover this demand. Due to the multiple disadvantages, as well as the neg-ative impact that burning of fossil fuels has on the environment, heat pumps are gaining more importance when provid-ing energy for heating. This paper is aimed at conducting thermodynamic optimization of cascade heat pump in terms of different working fluid combinations and calculating maximum COP. In order to perform thermodynamic analysis, a software program that uses database of working fluids, was developed. The intermediate temperature within cascade heat exchanger represents a crucial parameter when analyzing and designing cascade heat pumps. Thus, when per-forming thermodynamic analysis, the intermediate temperature was varied in the range from 0⁰С to 25⁰С and the opti-mal temperature that provides maximum COP was defined. The analysis was performed on an air-to-water heat pump, that could be used for heating different types of buildings in places in Serbia where the outdoor design temperature is -20⁰С. The cascade heat pump would be used alongside radiator heating system operating at temperatures 70⁰С/50⁰С. Due to the high temperature difference between heat source and heat sink, cascade heat pumps have advantages over single stage or multi stage heat pumps. The optimization was performed on an air-to-water cascade heat pump where the evaporation and condensation temperatures were -25⁰С and 75⁰С, respectively. Following the conducted optimization, the analysis of the impact that isentropic efficiency of compressor has on COP was examined.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)",
journal = "Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд",
title = "Thermodynamic Optimization Of Cascade Heat Pump",
pages = "21-17",
doi = "10.24094/kghk.020.51.1.11"
}

Kovačević, I., Rudonja, N.,& Gojak, M.. (2020). Thermodynamic Optimization Of Cascade Heat Pump. in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)., 17-21.
https://doi.org/10.24094/kghk.020.51.1.11

Kovačević I, Rudonja N, Gojak M. Thermodynamic Optimization Of Cascade Heat Pump. in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд. 2020;:17-21.
doi:10.24094/kghk.020.51.1.11 .

Kovačević, Ivana, Rudonja, Nedžad, Gojak, Milan, "Thermodynamic Optimization Of Cascade Heat Pump" in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд (2020):17-21,
https://doi.org/10.24094/kghk.020.51.1.11 . .

TY  - CONF
AU  - Todorović, Ružica
AU  - Gojak, Milan
AU  - Banjac, Miloš
AU  - Rudonja, Nedžad
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4900
AB  - The paper presents an exergy analysis of the groundwater heat pump operation for the needs of building heat-ing. The analysis was conducted on a monthly basis, given the dependence of exergy on the changing state of the envi-ronment. Changes in heating coefficient and exergy efficiency of the geothermal heat pump heating system depending on the influential parameters were analyzed: groundwater temperature from the pumping well, changes in the ground-water temperature on the heat pump evaporator and water temperature in the heating system. The obtained results provide insight into thermodynamic indicators of heat pump operation depending on the groundwater temperature and the operation mode of the building heating system. The conducted analysis provides guidelines for the design and optimization of heat pumps that work with groundwater as a heat source.
PB  - Beograd : SMEITS
C3  - Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд 2020
T1  - EXERGY ANALYSIS OF BUILDING HEATING WITH A GROUNDWATER SOURCE HEAT PUMP
EP  - 29
SP  - 23
DO  - 10.24094/kghk.020.51.1.23
ER  - 

@conference{
author = "Todorović, Ružica and Gojak, Milan and Banjac, Miloš and Rudonja, Nedžad",
year = "2020",
abstract = "The paper presents an exergy analysis of the groundwater heat pump operation for the needs of building heat-ing. The analysis was conducted on a monthly basis, given the dependence of exergy on the changing state of the envi-ronment. Changes in heating coefficient and exergy efficiency of the geothermal heat pump heating system depending on the influential parameters were analyzed: groundwater temperature from the pumping well, changes in the ground-water temperature on the heat pump evaporator and water temperature in the heating system. The obtained results provide insight into thermodynamic indicators of heat pump operation depending on the groundwater temperature and the operation mode of the building heating system. The conducted analysis provides guidelines for the design and optimization of heat pumps that work with groundwater as a heat source.",
publisher = "Beograd : SMEITS",
journal = "Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд 2020",
title = "EXERGY ANALYSIS OF BUILDING HEATING WITH A GROUNDWATER SOURCE HEAT PUMP",
pages = "29-23",
doi = "10.24094/kghk.020.51.1.23"
}

Todorović, R., Gojak, M., Banjac, M.,& Rudonja, N.. (2020). EXERGY ANALYSIS OF BUILDING HEATING WITH A GROUNDWATER SOURCE HEAT PUMP. in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд 2020
Beograd : SMEITS., 23-29.
https://doi.org/10.24094/kghk.020.51.1.23

Todorović R, Gojak M, Banjac M, Rudonja N. EXERGY ANALYSIS OF BUILDING HEATING WITH A GROUNDWATER SOURCE HEAT PUMP. in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд 2020. 2020;:23-29.
doi:10.24094/kghk.020.51.1.23 .

Todorović, Ružica, Gojak, Milan, Banjac, Miloš, Rudonja, Nedžad, "EXERGY ANALYSIS OF BUILDING HEATING WITH A GROUNDWATER SOURCE HEAT PUMP" in Зборник радова  51. Међународног конгреса и изложбе о КГХ 2020, Београд 2020 (2020):23-29,
https://doi.org/10.24094/kghk.020.51.1.23 . .

TY  - JOUR
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
AU  - Zlatanović, Ivan
AU  - Todorović, Ružica
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3359
AB  - In this article is presented thermodynamic analysis of a cascade heat pump system designed for using in high-temperature heating systems The own thermodynamic model was built by using properties of working fluids from the Coo/Prop base. The cascade heat pump was designed to use ambient air as heat source with temperature t(amb )= -20 degrees C and for heating water in the high-temperature heating system up to 70 degrees C. The projected heating capacity of the cascade heat pump was 100 kW. The coefficient of performance (COP) of the cascade heat pump system due to use of different working mediums combinations in cycles of the cascade heat pump was investigated. For the best combination of working fluids (mediums) sub-cooling super-heating pressure loss in compressor's suction line, as well as exergy efficiency of the heat pump were analysed as a function of the temperature of the cascade heat exchanger.
PB  - Assoc Mechanical Engineers Technicians Slovenia, Ljubljana
T2  - Strojniski Vestnik-Journal of Mechanical Engineering
T1  - Thermodynamic Analysis of a Cascade Heat Pump Incorporated in High-Temperature Heating System
EP  - 683
IS  - 11
SP  - 677
VL  - 66
DO  - 10.5545/sv-jme.2020.6836
ER  - 

@article{
author = "Rudonja, Nedžad and Gojak, Milan and Zlatanović, Ivan and Todorović, Ružica",
year = "2020",
abstract = "In this article is presented thermodynamic analysis of a cascade heat pump system designed for using in high-temperature heating systems The own thermodynamic model was built by using properties of working fluids from the Coo/Prop base. The cascade heat pump was designed to use ambient air as heat source with temperature t(amb )= -20 degrees C and for heating water in the high-temperature heating system up to 70 degrees C. The projected heating capacity of the cascade heat pump was 100 kW. The coefficient of performance (COP) of the cascade heat pump system due to use of different working mediums combinations in cycles of the cascade heat pump was investigated. For the best combination of working fluids (mediums) sub-cooling super-heating pressure loss in compressor's suction line, as well as exergy efficiency of the heat pump were analysed as a function of the temperature of the cascade heat exchanger.",
publisher = "Assoc Mechanical Engineers Technicians Slovenia, Ljubljana",
journal = "Strojniski Vestnik-Journal of Mechanical Engineering",
title = "Thermodynamic Analysis of a Cascade Heat Pump Incorporated in High-Temperature Heating System",
pages = "683-677",
number = "11",
volume = "66",
doi = "10.5545/sv-jme.2020.6836"
}

Rudonja, N., Gojak, M., Zlatanović, I.,& Todorović, R.. (2020). Thermodynamic Analysis of a Cascade Heat Pump Incorporated in High-Temperature Heating System. in Strojniski Vestnik-Journal of Mechanical Engineering
Assoc Mechanical Engineers Technicians Slovenia, Ljubljana., 66(11), 677-683.
https://doi.org/10.5545/sv-jme.2020.6836

Rudonja N, Gojak M, Zlatanović I, Todorović R. Thermodynamic Analysis of a Cascade Heat Pump Incorporated in High-Temperature Heating System. in Strojniski Vestnik-Journal of Mechanical Engineering. 2020;66(11):677-683.
doi:10.5545/sv-jme.2020.6836 .

Rudonja, Nedžad, Gojak, Milan, Zlatanović, Ivan, Todorović, Ružica, "Thermodynamic Analysis of a Cascade Heat Pump Incorporated in High-Temperature Heating System" in Strojniski Vestnik-Journal of Mechanical Engineering, 66, no. 11 (2020):677-683,
https://doi.org/10.5545/sv-jme.2020.6836 . .

TY  - CONF
AU  - Kijanović, Aleksandar I.
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4901
AB  - In this paper was demonstrated a examination of thermal transmittance of the PVC window frame of six cavities with double glazed glass filled with argon using THERM software. The numerical simulations were performed to determine thermal transmittance, temperatures and heat flow fields for a window. Experimental examination were carried out for verification of numerical simulations using hot-box method. The comparative analysis showed good agreement between experimental and numerical values for thermal transmittance.
C3  - Зборник радова  50. Међународног конгреса и изложбе о КГХ 2019, Београд
T1  - EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE THERMAL TRANSMITTANCE OF THE PVC WINDOW FRAME OF SIX CAVITIES WITH DOUBLE GLAZED GLASS FILLED WITH ARGON
EP  - 334
SP  - 329
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4901
ER  - 

@conference{
author = "Kijanović, Aleksandar I. and Rudonja, Nedžad and Gojak, Milan",
year = "2019",
abstract = "In this paper was demonstrated a examination of thermal transmittance of the PVC window frame of six cavities with double glazed glass filled with argon using THERM software. The numerical simulations were performed to determine thermal transmittance, temperatures and heat flow fields for a window. Experimental examination were carried out for verification of numerical simulations using hot-box method. The comparative analysis showed good agreement between experimental and numerical values for thermal transmittance.",
journal = "Зборник радова  50. Међународног конгреса и изложбе о КГХ 2019, Београд",
title = "EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE THERMAL TRANSMITTANCE OF THE PVC WINDOW FRAME OF SIX CAVITIES WITH DOUBLE GLAZED GLASS FILLED WITH ARGON",
pages = "334-329",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4901"
}

Kijanović, A. I., Rudonja, N.,& Gojak, M.. (2019). EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE THERMAL TRANSMITTANCE OF THE PVC WINDOW FRAME OF SIX CAVITIES WITH DOUBLE GLAZED GLASS FILLED WITH ARGON. in Зборник радова  50. Међународног конгреса и изложбе о КГХ 2019, Београд, 329-334.
https://hdl.handle.net/21.15107/rcub_machinery_4901

Kijanović AI, Rudonja N, Gojak M. EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE THERMAL TRANSMITTANCE OF THE PVC WINDOW FRAME OF SIX CAVITIES WITH DOUBLE GLAZED GLASS FILLED WITH ARGON. in Зборник радова  50. Међународног конгреса и изложбе о КГХ 2019, Београд. 2019;:329-334.
https://hdl.handle.net/21.15107/rcub_machinery_4901 .

Kijanović, Aleksandar I., Rudonja, Nedžad, Gojak, Milan, "EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE THERMAL TRANSMITTANCE OF THE PVC WINDOW FRAME OF SIX CAVITIES WITH DOUBLE GLAZED GLASS FILLED WITH ARGON" in Зборник радова  50. Међународног конгреса и изложбе о КГХ 2019, Београд (2019):329-334,
https://hdl.handle.net/21.15107/rcub_machinery_4901 .

TY  - CONF
AU  - Gojak, Milan
AU  - Todorović, Ružica
AU  - Rudonja, Nedžad
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4906
AB  - Agricultural sector is of great importance to every society. It is also a great
energy consumer. Based on the relevant statistical data on the use of various energy
sources, it can be concluded that diesel is the most used fuel in Serbia today. It is used
to run the agricultural machineries. Therefore, a thermodynamic analysis of energy use
in the agricultural sector of Serbia was conducted considering the fuel consumption for
the ten-year period from 2008 to 2017. The paper presents an energy and exergy
analysis of the use of energy products for the needs of agricultural mechanization in
Serbia. A comparison was made with the available data from other countries.
PB  - Univerzitet u Beogradu – Poljoprivredni fakultet
C3  - Proceedings of The Fourth International Symposium on Agricultural Engineering ISAE-2019, Belgrade
T1  - Energy аnd еxergy аnalysis оf fuel consumption In agricultural sector – Serbian Case
EP  - III-68
SP  - III-61
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4906
ER  - 

@conference{
author = "Gojak, Milan and Todorović, Ružica and Rudonja, Nedžad",
year = "2019",
abstract = "Agricultural sector is of great importance to every society. It is also a great
energy consumer. Based on the relevant statistical data on the use of various energy
sources, it can be concluded that diesel is the most used fuel in Serbia today. It is used
to run the agricultural machineries. Therefore, a thermodynamic analysis of energy use
in the agricultural sector of Serbia was conducted considering the fuel consumption for
the ten-year period from 2008 to 2017. The paper presents an energy and exergy
analysis of the use of energy products for the needs of agricultural mechanization in
Serbia. A comparison was made with the available data from other countries.",
publisher = "Univerzitet u Beogradu – Poljoprivredni fakultet",
journal = "Proceedings of The Fourth International Symposium on Agricultural Engineering ISAE-2019, Belgrade",
title = "Energy аnd еxergy аnalysis оf fuel consumption In agricultural sector – Serbian Case",
pages = "III-68-III-61",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4906"
}

Gojak, M., Todorović, R.,& Rudonja, N.. (2019). Energy аnd еxergy аnalysis оf fuel consumption In agricultural sector – Serbian Case. in Proceedings of The Fourth International Symposium on Agricultural Engineering ISAE-2019, Belgrade
Univerzitet u Beogradu – Poljoprivredni fakultet., III-61-III-68.
https://hdl.handle.net/21.15107/rcub_machinery_4906

Gojak M, Todorović R, Rudonja N. Energy аnd еxergy аnalysis оf fuel consumption In agricultural sector – Serbian Case. in Proceedings of The Fourth International Symposium on Agricultural Engineering ISAE-2019, Belgrade. 2019;:III-61-III-68.
https://hdl.handle.net/21.15107/rcub_machinery_4906 .

Gojak, Milan, Todorović, Ružica, Rudonja, Nedžad, "Energy аnd еxergy аnalysis оf fuel consumption In agricultural sector – Serbian Case" in Proceedings of The Fourth International Symposium on Agricultural Engineering ISAE-2019, Belgrade (2019):III-61-III-68,
https://hdl.handle.net/21.15107/rcub_machinery_4906 .

TY  - GEN
AU  - Milanović, Mihailo
AU  - Zlatanović, Ivan
AU  - Komatina, Mirko
AU  - Dražić, Milan
AU  - Gligorević, Kosta
AU  - Rudonja, Nedžad
AU  - Pajić, Miloš
AU  - Živković, Milovan
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5366
AB  - U radu je objašnjen postupak merenja temperature i određivanja toplotnih gubitaka ekperimentalne sušare u cilju povećanja energetske efikasnosti. Merena je spoljašnja temperatura sušare kako bi se utvrdili gubici toplote i potencijali za uštedu energije postavljanjem termoizolacije. Eksperimentalna sušara je podeljena u 15 sekcija na kojima je merena površinska temperatura u toku rada sušare pri vrednostima temperature vazduha koji cirkuliše kroz sušaru 50, 60 i 70 oC. Ustanovljeno je da sekcija grejača ima najviše specifične gubitke toplote, te da bi se postavljanjem termoizolacije na tom delu sušare postigle značajne uštede energije. Time je opravdano postavljanje termoizolacije na sekciju grejača i povećana energetska efikasnost sušare.
PB  - University of Belgrade, Faculty of Agriculture, The Institute for Agricultural Engineering
T2  - 19th Scientific conference „Current problems and tendecies in agricultural engineering“, Proceedings
T1  - Analysis of the influence of thermal insulation of the heater section of tunnel convective dryer on work parameters, energy efficiency and economy
EP  - 70
SP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5366
ER  - 

@misc{
author = "Milanović, Mihailo and Zlatanović, Ivan and Komatina, Mirko and Dražić, Milan and Gligorević, Kosta and Rudonja, Nedžad and Pajić, Miloš and Živković, Milovan",
year = "2018",
abstract = "U radu je objašnjen postupak merenja temperature i određivanja toplotnih gubitaka ekperimentalne sušare u cilju povećanja energetske efikasnosti. Merena je spoljašnja temperatura sušare kako bi se utvrdili gubici toplote i potencijali za uštedu energije postavljanjem termoizolacije. Eksperimentalna sušara je podeljena u 15 sekcija na kojima je merena površinska temperatura u toku rada sušare pri vrednostima temperature vazduha koji cirkuliše kroz sušaru 50, 60 i 70 oC. Ustanovljeno je da sekcija grejača ima najviše specifične gubitke toplote, te da bi se postavljanjem termoizolacije na tom delu sušare postigle značajne uštede energije. Time je opravdano postavljanje termoizolacije na sekciju grejača i povećana energetska efikasnost sušare.",
publisher = "University of Belgrade, Faculty of Agriculture, The Institute for Agricultural Engineering",
journal = "19th Scientific conference „Current problems and tendecies in agricultural engineering“, Proceedings",
title = "Analysis of the influence of thermal insulation of the heater section of tunnel convective dryer on work parameters, energy efficiency and economy",
pages = "70-63",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5366"
}

Milanović, M., Zlatanović, I., Komatina, M., Dražić, M., Gligorević, K., Rudonja, N., Pajić, M.,& Živković, M.. (2018). Analysis of the influence of thermal insulation of the heater section of tunnel convective dryer on work parameters, energy efficiency and economy. in 19th Scientific conference „Current problems and tendecies in agricultural engineering“, Proceedings
University of Belgrade, Faculty of Agriculture, The Institute for Agricultural Engineering., 63-70.
https://hdl.handle.net/21.15107/rcub_machinery_5366

Milanović M, Zlatanović I, Komatina M, Dražić M, Gligorević K, Rudonja N, Pajić M, Živković M. Analysis of the influence of thermal insulation of the heater section of tunnel convective dryer on work parameters, energy efficiency and economy. in 19th Scientific conference „Current problems and tendecies in agricultural engineering“, Proceedings. 2018;:63-70.
https://hdl.handle.net/21.15107/rcub_machinery_5366 .

Milanović, Mihailo, Zlatanović, Ivan, Komatina, Mirko, Dražić, Milan, Gligorević, Kosta, Rudonja, Nedžad, Pajić, Miloš, Živković, Milovan, "Analysis of the influence of thermal insulation of the heater section of tunnel convective dryer on work parameters, energy efficiency and economy" in 19th Scientific conference „Current problems and tendecies in agricultural engineering“, Proceedings (2018):63-70,
https://hdl.handle.net/21.15107/rcub_machinery_5366 .

TY  - CONF
AU  - Petrov, Nevena
AU  - Rudonja, Nedžad
AU  - Gojak, Milan
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4971
AB  - This paper aims to explain importance of emissivity in non-contact measurement. The significance and methods of contactless temperature measurement, as well as the physics of non-contact measurement, are presented. Non-contact temperature measurement method is based on the laws of radiation. The temperature value that will be measured by this method depends on the temperature and the emissivity of the object. To understand the importance of emissivity for accurate temperature measurement, first of all the term of emissivity is explained more closely. Furthermore, the parts of the laboratory equipment, which was used to experimentally determine the influence of the object’s emissivity on the accuracy of temperature measurement, are explained. The body with known emissivity was heated and its temperature was measured using an infrared sensor. In order to predict impact of emissivity of body on accuracy of temperature measurement emissivity was varied from 0.7 to 1.0 by the software. Six body’s temperature points were used for analysis. The measured temperature values are shown, as well as the deviations of the measured temperature from the actual body temperature. The graphical representation is given for a better understanding of the measurement error caused by used wrong value of body emissivity.
C3  - Proceedings of selected papers and abstracts The Second International Students Scientific Conference, Belgrade, Serbia
T1  - Influence of the Object's Emissivity on the Accuracy of Infrared Temperature Measurement
EP  - 102
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4971
ER  - 

@conference{
author = "Petrov, Nevena and Rudonja, Nedžad and Gojak, Milan",
year = "2018",
abstract = "This paper aims to explain importance of emissivity in non-contact measurement. The significance and methods of contactless temperature measurement, as well as the physics of non-contact measurement, are presented. Non-contact temperature measurement method is based on the laws of radiation. The temperature value that will be measured by this method depends on the temperature and the emissivity of the object. To understand the importance of emissivity for accurate temperature measurement, first of all the term of emissivity is explained more closely. Furthermore, the parts of the laboratory equipment, which was used to experimentally determine the influence of the object’s emissivity on the accuracy of temperature measurement, are explained. The body with known emissivity was heated and its temperature was measured using an infrared sensor. In order to predict impact of emissivity of body on accuracy of temperature measurement emissivity was varied from 0.7 to 1.0 by the software. Six body’s temperature points were used for analysis. The measured temperature values are shown, as well as the deviations of the measured temperature from the actual body temperature. The graphical representation is given for a better understanding of the measurement error caused by used wrong value of body emissivity.",
journal = "Proceedings of selected papers and abstracts The Second International Students Scientific Conference, Belgrade, Serbia",
title = "Influence of the Object's Emissivity on the Accuracy of Infrared Temperature Measurement",
pages = "102-93",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4971"
}

Petrov, N., Rudonja, N.,& Gojak, M.. (2018). Influence of the Object's Emissivity on the Accuracy of Infrared Temperature Measurement. in Proceedings of selected papers and abstracts The Second International Students Scientific Conference, Belgrade, Serbia, 93-102.
https://hdl.handle.net/21.15107/rcub_machinery_4971

Petrov N, Rudonja N, Gojak M. Influence of the Object's Emissivity on the Accuracy of Infrared Temperature Measurement. in Proceedings of selected papers and abstracts The Second International Students Scientific Conference, Belgrade, Serbia. 2018;:93-102.
https://hdl.handle.net/21.15107/rcub_machinery_4971 .

Petrov, Nevena, Rudonja, Nedžad, Gojak, Milan, "Influence of the Object's Emissivity on the Accuracy of Infrared Temperature Measurement" in Proceedings of selected papers and abstracts The Second International Students Scientific Conference, Belgrade, Serbia (2018):93-102,
https://hdl.handle.net/21.15107/rcub_machinery_4971 .

TY  - CONF
AU  - Zlatanović, Ivan
AU  - Vasileios, Firfiris
AU  - Milanović, Mihailo P.
AU  - Bošković, Biljana
AU  - Rudonja, Nedžad
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4979
AB  - Laboratory scale tunnel dryer for convective-conductive drying of food was designed with the ability to regulate the drying parameters by controlling the thermo-mechanical properties of the humid air and the temperature of the materials by convective-conductive methods, as well as precisely adjusting the fraction of recirculated air in the drying process. The dryer is fully automated, with the ability to operate according to temperature or humidity parameters. Automation and control of the process and drying parameters was achieved by frequency regulation of the forced air flow system, proportional-integral-differential (PID) temperature drying regulation and ON / OFF regulation of air humidity (agent), as well as PID regulation of the heating of materials by a conductive mechanism. All regulated sizes are measurable with the ability to connect to an external computer for data collection.
PB  - CENTRAL INSTITUTE FOR CONSERVATION, BELGRADE
PB  - Scientific Association for the Development and Promotion of New Technologies, Serbia
C3  - Proceedings of selected papers and abstracts The Second International Students Scientific Conference
T1  - Тhe project for laboratory scale tunnel dryer for convective-conductive drying of food materials
EP  - 8
SP  - 2
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4979
ER  - 

@conference{
author = "Zlatanović, Ivan and Vasileios, Firfiris and Milanović, Mihailo P. and Bošković, Biljana and Rudonja, Nedžad",
year = "2018",
abstract = "Laboratory scale tunnel dryer for convective-conductive drying of food was designed with the ability to regulate the drying parameters by controlling the thermo-mechanical properties of the humid air and the temperature of the materials by convective-conductive methods, as well as precisely adjusting the fraction of recirculated air in the drying process. The dryer is fully automated, with the ability to operate according to temperature or humidity parameters. Automation and control of the process and drying parameters was achieved by frequency regulation of the forced air flow system, proportional-integral-differential (PID) temperature drying regulation and ON / OFF regulation of air humidity (agent), as well as PID regulation of the heating of materials by a conductive mechanism. All regulated sizes are measurable with the ability to connect to an external computer for data collection.",
publisher = "CENTRAL INSTITUTE FOR CONSERVATION, BELGRADE, Scientific Association for the Development and Promotion of New Technologies, Serbia",
journal = "Proceedings of selected papers and abstracts The Second International Students Scientific Conference",
title = "Тhe project for laboratory scale tunnel dryer for convective-conductive drying of food materials",
pages = "8-2",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4979"
}

Zlatanović, I., Vasileios, F., Milanović, M. P., Bošković, B.,& Rudonja, N.. (2018). Тhe project for laboratory scale tunnel dryer for convective-conductive drying of food materials. in Proceedings of selected papers and abstracts The Second International Students Scientific Conference
CENTRAL INSTITUTE FOR CONSERVATION, BELGRADE., 2-8.
https://hdl.handle.net/21.15107/rcub_machinery_4979

Zlatanović I, Vasileios F, Milanović MP, Bošković B, Rudonja N. Тhe project for laboratory scale tunnel dryer for convective-conductive drying of food materials. in Proceedings of selected papers and abstracts The Second International Students Scientific Conference. 2018;:2-8.
https://hdl.handle.net/21.15107/rcub_machinery_4979 .

Zlatanović, Ivan, Vasileios, Firfiris, Milanović, Mihailo P., Bošković, Biljana, Rudonja, Nedžad, "Тhe project for laboratory scale tunnel dryer for convective-conductive drying of food materials" in Proceedings of selected papers and abstracts The Second International Students Scientific Conference (2018):2-8,
https://hdl.handle.net/21.15107/rcub_machinery_4979 .

TY  - JOUR
AU  - Lalošević, Marija
AU  - Komatina, Mirko
AU  - Miloš, Marko
AU  - Rudonja, Nedžad
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2790
AB  - The effect of extensive and intensive green roofs on improving outdoor microclimate parameters of urban built environments is currently a worldwide focus of research. Due to the lack of reliable data for Belgrade, the impact of extensive and intensive green roof systems on mitigating the effects of urban heat islands and improving microclimatic conditions by utilizing high albedo materials in public spaces were studied. Research was conducted on four chosen urban units within existing residential blocks in the city that were representative of typical urban planning and construction within the Belgrade metropolitan area. Five different models (baseline model and four potential models of retrofitting) were designed, for which the temperature changes at pedestrian and roof levels at 07:00, 13:00, 19:00 h, on a typical summer day, and at 01:00 h, the following night in Belgrade were investigated. The ENVI-met software was used to model the simulations. The results of numerical modeling showed that utilizing green roofs in the Belgrade climatic area could reduce air temperatures in the surroundings up to 0.47, 1.51, 1.60, 1.80 degrees C at pedestrian level and up to 0.53, 1.45, 0.90, 1.45 degrees C at roof level for four potential retrofitting strategies, respectively.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Green roofs and cool materials as retrofitting strategies for urban heat island mitigation case study in Belgrade, Serbia
EP  - 2324
IS  - 6
SP  - 2309
VL  - 22
DO  - 10.2298/TSCI171120086L
ER  - 

@article{
author = "Lalošević, Marija and Komatina, Mirko and Miloš, Marko and Rudonja, Nedžad",
year = "2018",
abstract = "The effect of extensive and intensive green roofs on improving outdoor microclimate parameters of urban built environments is currently a worldwide focus of research. Due to the lack of reliable data for Belgrade, the impact of extensive and intensive green roof systems on mitigating the effects of urban heat islands and improving microclimatic conditions by utilizing high albedo materials in public spaces were studied. Research was conducted on four chosen urban units within existing residential blocks in the city that were representative of typical urban planning and construction within the Belgrade metropolitan area. Five different models (baseline model and four potential models of retrofitting) were designed, for which the temperature changes at pedestrian and roof levels at 07:00, 13:00, 19:00 h, on a typical summer day, and at 01:00 h, the following night in Belgrade were investigated. The ENVI-met software was used to model the simulations. The results of numerical modeling showed that utilizing green roofs in the Belgrade climatic area could reduce air temperatures in the surroundings up to 0.47, 1.51, 1.60, 1.80 degrees C at pedestrian level and up to 0.53, 1.45, 0.90, 1.45 degrees C at roof level for four potential retrofitting strategies, respectively.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Green roofs and cool materials as retrofitting strategies for urban heat island mitigation case study in Belgrade, Serbia",
pages = "2324-2309",
number = "6",
volume = "22",
doi = "10.2298/TSCI171120086L"
}

Lalošević, M., Komatina, M., Miloš, M.,& Rudonja, N.. (2018). Green roofs and cool materials as retrofitting strategies for urban heat island mitigation case study in Belgrade, Serbia. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 22(6), 2309-2324.
https://doi.org/10.2298/TSCI171120086L

Lalošević M, Komatina M, Miloš M, Rudonja N. Green roofs and cool materials as retrofitting strategies for urban heat island mitigation case study in Belgrade, Serbia. in Thermal Science. 2018;22(6):2309-2324.
doi:10.2298/TSCI171120086L .

Lalošević, Marija, Komatina, Mirko, Miloš, Marko, Rudonja, Nedžad, "Green roofs and cool materials as retrofitting strategies for urban heat island mitigation case study in Belgrade, Serbia" in Thermal Science, 22, no. 6 (2018):2309-2324,
https://doi.org/10.2298/TSCI171120086L . .

TY  - CONF
AU  - Rudonja, Nedžad
AU  - Komatina, Mirko
AU  - Paprika, Milijana J.
AU  - Jovanović, Vladimir
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4964
AB  - Due to their efficiency heat pumps have found great application in the
building industry, the process industry, in various technological processes in the
production of food, to the space technology system, etc. When heat pumps are coupled
to the energy management system which monitors and optimizes work parameters not
only of the heat pump but also work parameters of other systems, such as solar and
photovoltaic panels, thermal energy storages, electric batteries and the whole system, it
is necessary to have a mathematical model that with sufficient accuracy and without
great complexity estimates energy performance of the heat pump itself and the whole
energy system. In this article a relatively simple mathematical model of a heat pump,
with which it is possible to get values for the COP at any given time and under given
conditions, was given. The obtained results of the model, applied to the air-water heat
pump, used the input meteorological data of the mean air temperature for Belgrade,
were presented. The verification of the obtained results of the model was made by using
the catalogue data for the COP of the the Ecodan Monobloc Air Source Heat Pumps
manufactured by Mitsubishi Electric.
PB  - Univerzitet u Beogradu-Poljoprivredni fakultet
C3  - Proceedings of The Third International Symposium on Agricultural Engineering ISAE-2017
T1  - Аpproximate method for the estimation of energy performance of heat pumps connected to the system of energy management of facilities
EP  - III-31
SP  - III-25
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4964
ER  - 

@conference{
author = "Rudonja, Nedžad and Komatina, Mirko and Paprika, Milijana J. and Jovanović, Vladimir",
year = "2017",
abstract = "Due to their efficiency heat pumps have found great application in the
building industry, the process industry, in various technological processes in the
production of food, to the space technology system, etc. When heat pumps are coupled
to the energy management system which monitors and optimizes work parameters not
only of the heat pump but also work parameters of other systems, such as solar and
photovoltaic panels, thermal energy storages, electric batteries and the whole system, it
is necessary to have a mathematical model that with sufficient accuracy and without
great complexity estimates energy performance of the heat pump itself and the whole
energy system. In this article a relatively simple mathematical model of a heat pump,
with which it is possible to get values for the COP at any given time and under given
conditions, was given. The obtained results of the model, applied to the air-water heat
pump, used the input meteorological data of the mean air temperature for Belgrade,
were presented. The verification of the obtained results of the model was made by using
the catalogue data for the COP of the the Ecodan Monobloc Air Source Heat Pumps
manufactured by Mitsubishi Electric.",
publisher = "Univerzitet u Beogradu-Poljoprivredni fakultet",
journal = "Proceedings of The Third International Symposium on Agricultural Engineering ISAE-2017",
title = "Аpproximate method for the estimation of energy performance of heat pumps connected to the system of energy management of facilities",
pages = "III-31-III-25",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4964"
}

Rudonja, N., Komatina, M., Paprika, M. J.,& Jovanović, V.. (2017). Аpproximate method for the estimation of energy performance of heat pumps connected to the system of energy management of facilities. in Proceedings of The Third International Symposium on Agricultural Engineering ISAE-2017
Univerzitet u Beogradu-Poljoprivredni fakultet., III-25-III-31.
https://hdl.handle.net/21.15107/rcub_machinery_4964

Rudonja N, Komatina M, Paprika MJ, Jovanović V. Аpproximate method for the estimation of energy performance of heat pumps connected to the system of energy management of facilities. in Proceedings of The Third International Symposium on Agricultural Engineering ISAE-2017. 2017;:III-25-III-31.
https://hdl.handle.net/21.15107/rcub_machinery_4964 .

Rudonja, Nedžad, Komatina, Mirko, Paprika, Milijana J., Jovanović, Vladimir, "Аpproximate method for the estimation of energy performance of heat pumps connected to the system of energy management of facilities" in Proceedings of The Third International Symposium on Agricultural Engineering ISAE-2017 (2017):III-25-III-31,
https://hdl.handle.net/21.15107/rcub_machinery_4964 .