TY  - CONF
AU  - Bajc, Tamara
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7762
AB  - The Republic of Serbia has more than 2.2 millions of buildings built before 2011. when the 
Rulebook on energy efficiency of buildings was adopted. Which further implies that more than 289 
millions of square meters of dwellings in Serbia have lower thermal envelop properties than it is 
recommended and thus much higher energy consumption for heating than it is the case in new 
buildings. This makes an opportunity for deep building renovation of Serbian building stock and 
potential energy savings. In this manner, it is possible to save up to 6.7610^9 kWh/a of energy for 
heating yearly just by the renovation of the existing building stock built in a period from 1971-1980. 
If this calculation is extended to all Serbian dwellings, it is possible to save up to 2.68*10^10 kWh/a 
of final energy for heating yearly. Similarly, CO2 emission reduction for the existing buildings can be accomplished up to 40% just by the refurbishment of the building envelope.
PB  - The Academy of Applied Technical Studies Belgrade
C3  - International Scientific and Professional Conference Politehnika 2023 Proceedings
T1  - ENERGY SAVINGS AND CO2 EMISSION REDUCTION POTENTIAL THROUGH  THE EXISTING BUILDING RENOVATION
SP  - 964
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7762
ER  - 

@conference{
author = "Bajc, Tamara",
year = "2023",
abstract = "The Republic of Serbia has more than 2.2 millions of buildings built before 2011. when the 
Rulebook on energy efficiency of buildings was adopted. Which further implies that more than 289 
millions of square meters of dwellings in Serbia have lower thermal envelop properties than it is 
recommended and thus much higher energy consumption for heating than it is the case in new 
buildings. This makes an opportunity for deep building renovation of Serbian building stock and 
potential energy savings. In this manner, it is possible to save up to 6.7610^9 kWh/a of energy for 
heating yearly just by the renovation of the existing building stock built in a period from 1971-1980. 
If this calculation is extended to all Serbian dwellings, it is possible to save up to 2.68*10^10 kWh/a 
of final energy for heating yearly. Similarly, CO2 emission reduction for the existing buildings can be accomplished up to 40% just by the refurbishment of the building envelope.",
publisher = "The Academy of Applied Technical Studies Belgrade",
journal = "International Scientific and Professional Conference Politehnika 2023 Proceedings",
title = "ENERGY SAVINGS AND CO2 EMISSION REDUCTION POTENTIAL THROUGH  THE EXISTING BUILDING RENOVATION",
pages = "964",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7762"
}

Bajc, T.. (2023). ENERGY SAVINGS AND CO2 EMISSION REDUCTION POTENTIAL THROUGH  THE EXISTING BUILDING RENOVATION. in International Scientific and Professional Conference Politehnika 2023 Proceedings
The Academy of Applied Technical Studies Belgrade., 964.
https://hdl.handle.net/21.15107/rcub_machinery_7762

Bajc T. ENERGY SAVINGS AND CO2 EMISSION REDUCTION POTENTIAL THROUGH  THE EXISTING BUILDING RENOVATION. in International Scientific and Professional Conference Politehnika 2023 Proceedings. 2023;:964.
https://hdl.handle.net/21.15107/rcub_machinery_7762 .

Bajc, Tamara, "ENERGY SAVINGS AND CO2 EMISSION REDUCTION POTENTIAL THROUGH  THE EXISTING BUILDING RENOVATION" in International Scientific and Professional Conference Politehnika 2023 Proceedings (2023):964,
https://hdl.handle.net/21.15107/rcub_machinery_7762 .

TY  - JOUR
AU  - Bajc, Tamara
AU  - Kostadinović, Danka
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6996
AB  - The Republic of Serbia has a significant potential for the electricity production from solar energy, namely the
floating photovoltaic (PV) systems, which are not exploited enough. Although there is a large interest in floating
photovoltaic systems (FPVS) worldwide, studies related to the assessment of FPVS potential in this part of Europe
have not been performed yet. This paper investigates, for the first time, the possibility of implementation of the
FPVS on the six largest Serbian lakes and demonstrates the impact of geographical location on the energy output
of the FPVS for the selected locations. The possibility of implementation is studied by simulating the energy
output of FPVS using "PVGIS" tool. Energy production from the proposed FPVS, for selected locations, is discussed
on a monthly and yearly basis. Installment of the FPVS on these water bodies can produce up to 8959 kWh
of energy, while saves 164⋅10^6 m3/year of water from evaporation at the same time. In addition, the annual
reduction of carbon dioxide emissions was analyzed and found to be up to 6.34 tons per year, which further
implies with carbon credit potential of up to 9741 € in 20 years period. Drawn conclusions provides better
understanding of FPVS and their applicability in the Republic of Serbia to ensure a sustainable, ecological
friendly, secure and reliable supply of green energy, and further the used approach can be easily applied in other
countries with similar geographical characteristics.
PB  - ELSEVIER
T2  - Journal of Cleaner Production
T1  - Potential of usage of the floating photovoltaic systems on natural and artificial lakes in the Republic of Serbia
SP  - 138598
VL  - 422
DO  - 10.1016/j.jclepro.2023.138598
ER  - 

@article{
author = "Bajc, Tamara and Kostadinović, Danka",
year = "2023",
abstract = "The Republic of Serbia has a significant potential for the electricity production from solar energy, namely the
floating photovoltaic (PV) systems, which are not exploited enough. Although there is a large interest in floating
photovoltaic systems (FPVS) worldwide, studies related to the assessment of FPVS potential in this part of Europe
have not been performed yet. This paper investigates, for the first time, the possibility of implementation of the
FPVS on the six largest Serbian lakes and demonstrates the impact of geographical location on the energy output
of the FPVS for the selected locations. The possibility of implementation is studied by simulating the energy
output of FPVS using "PVGIS" tool. Energy production from the proposed FPVS, for selected locations, is discussed
on a monthly and yearly basis. Installment of the FPVS on these water bodies can produce up to 8959 kWh
of energy, while saves 164⋅10^6 m3/year of water from evaporation at the same time. In addition, the annual
reduction of carbon dioxide emissions was analyzed and found to be up to 6.34 tons per year, which further
implies with carbon credit potential of up to 9741 € in 20 years period. Drawn conclusions provides better
understanding of FPVS and their applicability in the Republic of Serbia to ensure a sustainable, ecological
friendly, secure and reliable supply of green energy, and further the used approach can be easily applied in other
countries with similar geographical characteristics.",
publisher = "ELSEVIER",
journal = "Journal of Cleaner Production",
title = "Potential of usage of the floating photovoltaic systems on natural and artificial lakes in the Republic of Serbia",
pages = "138598",
volume = "422",
doi = "10.1016/j.jclepro.2023.138598"
}

Bajc, T.,& Kostadinović, D.. (2023). Potential of usage of the floating photovoltaic systems on natural and artificial lakes in the Republic of Serbia. in Journal of Cleaner Production
ELSEVIER., 422, 138598.
https://doi.org/10.1016/j.jclepro.2023.138598

Bajc T, Kostadinović D. Potential of usage of the floating photovoltaic systems on natural and artificial lakes in the Republic of Serbia. in Journal of Cleaner Production. 2023;422:138598.
doi:10.1016/j.jclepro.2023.138598 .

Bajc, Tamara, Kostadinović, Danka, "Potential of usage of the floating photovoltaic systems on natural and artificial lakes in the Republic of Serbia" in Journal of Cleaner Production, 422 (2023):138598,
https://doi.org/10.1016/j.jclepro.2023.138598 . .

TY  - CONF
AU  - Kerčov, Anton
AU  - Jovanović, Radiša
AU  - Bajc, Tamara
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7076
AB  - Compared to methodology provided by standards concerning thermal comfort, by using
models based on various approximation methods or artificial intelligence, it may be possible
to ensure more time efficient and accurate calculation of thermal comfort indices. The aim of
this study is to compare Predicted Mean Vote (PMV) computation model established by using
multiple linear regression and trained artificial neural network, from the standpoint of
accuracy. Both models are established on the basis of the same dataset which consists of 400
combinations of 4 thermal comfort parameters. These parameters are the air temperature,
mean radiant temperature, relative humidity and clothing resistance, while activity level and
air velocity are adopted as 1.1 met (office typing activity) and 0.05 m/s, respectively, and are
considered constant values for selected type of indoor environment. Clothing resistance is
adopted as 0.5 clo for summer period and 1.0 clo for winter period, while the air temperature,
mean radiant temperature and relative humidity are values which are randomly generated
within appropriately selected ranges. Taking into account that coefficients of determination
which correspond to it are over 95%, resulting first degree polynomial relation obtained by
using multiple linear regression can be considered a satisfactory approximation of PMV
model as it is given in ASHRAE Standard 55-2020. Furthermore, there are certain input value
combinations for which PMV values obtained by using this model coincide with the ones
calculated by using algorithm which is provided by standard. However, results obtained by
using trained neural network with one hidden layer coincide with PMV values calculated on
the basis of ASHRAE Standard 55-2020 for each input value combination. Therefore, from
the standpoint of accuracy, it is concluded that neural network provides significantly better
approximation of PMV model.
PB  - Faculty of Mechanical Engineering and Naval Architecture, Zagreb
C3  - 18th conference on sustainable development of energy, water and environment systems
T1  - Thermal comfort indices analysis using multiple linear regression and neural network
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7076
ER  - 

@conference{
author = "Kerčov, Anton and Jovanović, Radiša and Bajc, Tamara",
year = "2023",
abstract = "Compared to methodology provided by standards concerning thermal comfort, by using
models based on various approximation methods or artificial intelligence, it may be possible
to ensure more time efficient and accurate calculation of thermal comfort indices. The aim of
this study is to compare Predicted Mean Vote (PMV) computation model established by using
multiple linear regression and trained artificial neural network, from the standpoint of
accuracy. Both models are established on the basis of the same dataset which consists of 400
combinations of 4 thermal comfort parameters. These parameters are the air temperature,
mean radiant temperature, relative humidity and clothing resistance, while activity level and
air velocity are adopted as 1.1 met (office typing activity) and 0.05 m/s, respectively, and are
considered constant values for selected type of indoor environment. Clothing resistance is
adopted as 0.5 clo for summer period and 1.0 clo for winter period, while the air temperature,
mean radiant temperature and relative humidity are values which are randomly generated
within appropriately selected ranges. Taking into account that coefficients of determination
which correspond to it are over 95%, resulting first degree polynomial relation obtained by
using multiple linear regression can be considered a satisfactory approximation of PMV
model as it is given in ASHRAE Standard 55-2020. Furthermore, there are certain input value
combinations for which PMV values obtained by using this model coincide with the ones
calculated by using algorithm which is provided by standard. However, results obtained by
using trained neural network with one hidden layer coincide with PMV values calculated on
the basis of ASHRAE Standard 55-2020 for each input value combination. Therefore, from
the standpoint of accuracy, it is concluded that neural network provides significantly better
approximation of PMV model.",
publisher = "Faculty of Mechanical Engineering and Naval Architecture, Zagreb",
journal = "18th conference on sustainable development of energy, water and environment systems",
title = "Thermal comfort indices analysis using multiple linear regression and neural network",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7076"
}

Kerčov, A., Jovanović, R.,& Bajc, T.. (2023). Thermal comfort indices analysis using multiple linear regression and neural network. in 18th conference on sustainable development of energy, water and environment systems
Faculty of Mechanical Engineering and Naval Architecture, Zagreb..
https://hdl.handle.net/21.15107/rcub_machinery_7076

Kerčov A, Jovanović R, Bajc T. Thermal comfort indices analysis using multiple linear regression and neural network. in 18th conference on sustainable development of energy, water and environment systems. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7076 .

Kerčov, Anton, Jovanović, Radiša, Bajc, Tamara, "Thermal comfort indices analysis using multiple linear regression and neural network" in 18th conference on sustainable development of energy, water and environment systems (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7076 .

TY  - CONF
AU  - Bajc, Tamara
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7074
AB  - The intense development and urbanization of the cities last decades significantly influenced on increase of pollution and formation of urban heat islands. Further, the rapid urbanization impacted on decrease of green areas in cities. Looking at the data of development for Belgrade, Serbia, in a period from 2016 to 2020, the square meters of built space increased 350%. Furthermore, Serbia has 2.910^8 square meters of dwellings build before 2011, which means that the thermal properties of the buildings’ envelope were much lower than it is now recommended. Moreover, with a intense urbanization, the number of bee population significantly decreased. All these issues represent a high potential for the refurbishment of buildings using green systems, either the green roofs or together green roofs and green facades. Different types of green roofs and facades are considered to be a good habitats for bees in urban areas, and a lot of cities worldwide recognized this potential. Serbia has a great potential for developing the green roofs at the top of the existing buildings, which need refurbishment, since the majority of these buildings has an optimal height for the bees habitat, up to eight floors. This concept is beneficial in many directions: contribution to energy efficiency and better indoor environmental quality, decrease of urban heat islands, decrease of urban pollution, increase of number of green areas in cities and in the same time saving of bee population in urban areas.
PB  - University of Belgrade - Faculty of Agriculture
C3  - Proceedings of The 6th International Symposium on Agricultural Engineering - ISAE 2023
T1  - POTENTIAL OF URBAN GREEN ROOFS AS A HABITAT FOR BEES
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7074
ER  - 

@conference{
author = "Bajc, Tamara",
year = "2023",
abstract = "The intense development and urbanization of the cities last decades significantly influenced on increase of pollution and formation of urban heat islands. Further, the rapid urbanization impacted on decrease of green areas in cities. Looking at the data of development for Belgrade, Serbia, in a period from 2016 to 2020, the square meters of built space increased 350%. Furthermore, Serbia has 2.910^8 square meters of dwellings build before 2011, which means that the thermal properties of the buildings’ envelope were much lower than it is now recommended. Moreover, with a intense urbanization, the number of bee population significantly decreased. All these issues represent a high potential for the refurbishment of buildings using green systems, either the green roofs or together green roofs and green facades. Different types of green roofs and facades are considered to be a good habitats for bees in urban areas, and a lot of cities worldwide recognized this potential. Serbia has a great potential for developing the green roofs at the top of the existing buildings, which need refurbishment, since the majority of these buildings has an optimal height for the bees habitat, up to eight floors. This concept is beneficial in many directions: contribution to energy efficiency and better indoor environmental quality, decrease of urban heat islands, decrease of urban pollution, increase of number of green areas in cities and in the same time saving of bee population in urban areas.",
publisher = "University of Belgrade - Faculty of Agriculture",
journal = "Proceedings of The 6th International Symposium on Agricultural Engineering - ISAE 2023",
title = "POTENTIAL OF URBAN GREEN ROOFS AS A HABITAT FOR BEES",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7074"
}

Bajc, T.. (2023). POTENTIAL OF URBAN GREEN ROOFS AS A HABITAT FOR BEES. in Proceedings of The 6th International Symposium on Agricultural Engineering - ISAE 2023
University of Belgrade - Faculty of Agriculture..
https://hdl.handle.net/21.15107/rcub_machinery_7074

Bajc T. POTENTIAL OF URBAN GREEN ROOFS AS A HABITAT FOR BEES. in Proceedings of The 6th International Symposium on Agricultural Engineering - ISAE 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7074 .

Bajc, Tamara, "POTENTIAL OF URBAN GREEN ROOFS AS A HABITAT FOR BEES" in Proceedings of The 6th International Symposium on Agricultural Engineering - ISAE 2023 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7074 .

TY  - JOUR
AU  - Bajc, Tamara
AU  - Kerčov, Anton
AU  - Gojak, Milan
AU  - Todorović, Maja
AU  - Nikolina, Pivac
AU  - Sandro, Nižetić
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6915
AB  - The majority of studies dealing with the correlation between human body exergy consumption and thermal comfort use adopted, constant values of metabolic rate for appropriate activity level. Taking into account correlations between metabolic rate and the occupant’s exhaled CO2 volumetric flow rate, this study proposes a novel method for the calculation of metabolic rate using measured CO2 concentration in the indoor air. Using measured values of the air and radiant temperature, relative humidity and air velocity, and calculated values of metabolic rate, the human body exergy consumption rate and corresponding Predicted Mean Vote (PMV) are calculated. Moreover, a novel polynomial relation between them is proposed. Results show that metabolic rate values vary in the range of 0.97 to 1.54 met which leads to significantly wider range of PMV and human body exergy consumption rate comparing to the assumed value of 1.2 met for sedentary school activity. According to the obtained relation, the minimal value of the human body exergy consumption rate occurs for PMV = − 0.02. Results of this study imply that treating CO2 concentration as variable does have an impact on the thermal comfort assessment, providing enhanced correlations between thermal comfort and human body exergy consumption rate.
PB  - Elsevier
T2  - Energy and Buildings, Elsevier
T1  - A novel method for calculation of the CO2 concentration impact on correlation between thermal comfort and human body exergy consumption
SP  - 113234
VL  - 294
DO  - 10.1016/j.enbuild.2023.113234
ER  - 

@article{
author = "Bajc, Tamara and Kerčov, Anton and Gojak, Milan and Todorović, Maja and Nikolina, Pivac and Sandro, Nižetić",
year = "2023",
abstract = "The majority of studies dealing with the correlation between human body exergy consumption and thermal comfort use adopted, constant values of metabolic rate for appropriate activity level. Taking into account correlations between metabolic rate and the occupant’s exhaled CO2 volumetric flow rate, this study proposes a novel method for the calculation of metabolic rate using measured CO2 concentration in the indoor air. Using measured values of the air and radiant temperature, relative humidity and air velocity, and calculated values of metabolic rate, the human body exergy consumption rate and corresponding Predicted Mean Vote (PMV) are calculated. Moreover, a novel polynomial relation between them is proposed. Results show that metabolic rate values vary in the range of 0.97 to 1.54 met which leads to significantly wider range of PMV and human body exergy consumption rate comparing to the assumed value of 1.2 met for sedentary school activity. According to the obtained relation, the minimal value of the human body exergy consumption rate occurs for PMV = − 0.02. Results of this study imply that treating CO2 concentration as variable does have an impact on the thermal comfort assessment, providing enhanced correlations between thermal comfort and human body exergy consumption rate.",
publisher = "Elsevier",
journal = "Energy and Buildings, Elsevier",
title = "A novel method for calculation of the CO2 concentration impact on correlation between thermal comfort and human body exergy consumption",
pages = "113234",
volume = "294",
doi = "10.1016/j.enbuild.2023.113234"
}

Bajc, T., Kerčov, A., Gojak, M., Todorović, M., Nikolina, P.,& Sandro, N.. (2023). A novel method for calculation of the CO2 concentration impact on correlation between thermal comfort and human body exergy consumption. in Energy and Buildings, Elsevier
Elsevier., 294, 113234.
https://doi.org/10.1016/j.enbuild.2023.113234

Bajc T, Kerčov A, Gojak M, Todorović M, Nikolina P, Sandro N. A novel method for calculation of the CO2 concentration impact on correlation between thermal comfort and human body exergy consumption. in Energy and Buildings, Elsevier. 2023;294:113234.
doi:10.1016/j.enbuild.2023.113234 .

Bajc, Tamara, Kerčov, Anton, Gojak, Milan, Todorović, Maja, Nikolina, Pivac, Sandro, Nižetić, "A novel method for calculation of the CO2 concentration impact on correlation between thermal comfort and human body exergy consumption" in Energy and Buildings, Elsevier, 294 (2023):113234,
https://doi.org/10.1016/j.enbuild.2023.113234 . .

TY  - CONF
AU  - Černicin, Vladimir
AU  - Milovančević, Uroš
AU  - Otović, Milena
AU  - Zhang, Wenying
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6827
AB  - Theoretical cycle analysis is an indispensable part of the refrigeration system and heat pump (HP) design. However, due to the simplicity of the calculations and numerous assumptions, there is a deviation from the actual behavior of the system. In this paper, a single-stage, reversible CO2 system, which can operate in both air-conditioning and heating mode, with and without an internal heat exchanger (IHX), was presented. In the heating mode, the deviation of the theoretical cycle from the actual cycle of the heat pump was analyzed, under various operating conditions. Actual cycles were formed based on the experimental investigation of this system. The changes of various parameters and deviations that are made due to a simpler calculation are presented.
PB  - International Institute of Refrigeration
C3  - Proceedings of 10th Conference on Ammonia and CO2 Refrigeration Technology
T1  - THE DIFFERENCE BETWEEN SIMPLIFIED THEORETICAL AND EXPERIMENTAL CYCLE ANALYSIS OF CO2 HEAT PUMP
DO  - 10.18462/iir.nh3-co2.2023.0027
ER  - 

@conference{
author = "Černicin, Vladimir and Milovančević, Uroš and Otović, Milena and Zhang, Wenying",
year = "2023",
abstract = "Theoretical cycle analysis is an indispensable part of the refrigeration system and heat pump (HP) design. However, due to the simplicity of the calculations and numerous assumptions, there is a deviation from the actual behavior of the system. In this paper, a single-stage, reversible CO2 system, which can operate in both air-conditioning and heating mode, with and without an internal heat exchanger (IHX), was presented. In the heating mode, the deviation of the theoretical cycle from the actual cycle of the heat pump was analyzed, under various operating conditions. Actual cycles were formed based on the experimental investigation of this system. The changes of various parameters and deviations that are made due to a simpler calculation are presented.",
publisher = "International Institute of Refrigeration",
journal = "Proceedings of 10th Conference on Ammonia and CO2 Refrigeration Technology",
title = "THE DIFFERENCE BETWEEN SIMPLIFIED THEORETICAL AND EXPERIMENTAL CYCLE ANALYSIS OF CO2 HEAT PUMP",
doi = "10.18462/iir.nh3-co2.2023.0027"
}

Černicin, V., Milovančević, U., Otović, M.,& Zhang, W.. (2023). THE DIFFERENCE BETWEEN SIMPLIFIED THEORETICAL AND EXPERIMENTAL CYCLE ANALYSIS OF CO2 HEAT PUMP. in Proceedings of 10th Conference on Ammonia and CO2 Refrigeration Technology
International Institute of Refrigeration..
https://doi.org/10.18462/iir.nh3-co2.2023.0027

Černicin V, Milovančević U, Otović M, Zhang W. THE DIFFERENCE BETWEEN SIMPLIFIED THEORETICAL AND EXPERIMENTAL CYCLE ANALYSIS OF CO2 HEAT PUMP. in Proceedings of 10th Conference on Ammonia and CO2 Refrigeration Technology. 2023;.
doi:10.18462/iir.nh3-co2.2023.0027 .

Černicin, Vladimir, Milovančević, Uroš, Otović, Milena, Zhang, Wenying, "THE DIFFERENCE BETWEEN SIMPLIFIED THEORETICAL AND EXPERIMENTAL CYCLE ANALYSIS OF CO2 HEAT PUMP" in Proceedings of 10th Conference on Ammonia and CO2 Refrigeration Technology (2023),
https://doi.org/10.18462/iir.nh3-co2.2023.0027 . .

TY  - CONF
AU  - Černicin, Vladimir
AU  - Zhang, Wenying
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5734
AB  - The use of an internal heat exchanger (IHX) as a cycle improvement measure is very common with CO2 systems. However, a simple thermodynamic analysis is not able to fully indicate the advantages of IHX in a single-stage system. For this reason, in this paper, the effect of the internal heat exchanger on the reversible CO2 system, which can work in both air-conditioning and heating mode, was experimentally investigated. Experiments were performed under various conditions for both operating modes, with and without an internal heat exchanger. The results of the experiments showed that in the heating mode (heat pump) the coefficient of performance (COP) can be increased up to 10,5% by introducing the internal heat exchanger, while in the air-conditioning mode, the COP can be increased up to 13,8%. Also, it has been shown that this improvement provides safer system operation and less frost formation on the evaporator.
PB  - Beograd: SMEITS
C3  - Zbornik 53. Međunarodnog kongresa o KGH, 2022
T1  - THE EFFECT OF INTERNAL HEAT EXCHANGER IN A REVERSIBLE CO2 SYSTEM UNDER VARIOUS OPERATING CONDITIONS
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5734
ER  - 

@conference{
author = "Černicin, Vladimir and Zhang, Wenying",
year = "2023",
abstract = "The use of an internal heat exchanger (IHX) as a cycle improvement measure is very common with CO2 systems. However, a simple thermodynamic analysis is not able to fully indicate the advantages of IHX in a single-stage system. For this reason, in this paper, the effect of the internal heat exchanger on the reversible CO2 system, which can work in both air-conditioning and heating mode, was experimentally investigated. Experiments were performed under various conditions for both operating modes, with and without an internal heat exchanger. The results of the experiments showed that in the heating mode (heat pump) the coefficient of performance (COP) can be increased up to 10,5% by introducing the internal heat exchanger, while in the air-conditioning mode, the COP can be increased up to 13,8%. Also, it has been shown that this improvement provides safer system operation and less frost formation on the evaporator.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 53. Međunarodnog kongresa o KGH, 2022",
title = "THE EFFECT OF INTERNAL HEAT EXCHANGER IN A REVERSIBLE CO2 SYSTEM UNDER VARIOUS OPERATING CONDITIONS",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5734"
}

Černicin, V.,& Zhang, W.. (2023). THE EFFECT OF INTERNAL HEAT EXCHANGER IN A REVERSIBLE CO2 SYSTEM UNDER VARIOUS OPERATING CONDITIONS. in Zbornik 53. Međunarodnog kongresa o KGH, 2022
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5734

Černicin V, Zhang W. THE EFFECT OF INTERNAL HEAT EXCHANGER IN A REVERSIBLE CO2 SYSTEM UNDER VARIOUS OPERATING CONDITIONS. in Zbornik 53. Međunarodnog kongresa o KGH, 2022. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_5734 .

Černicin, Vladimir, Zhang, Wenying, "THE EFFECT OF INTERNAL HEAT EXCHANGER IN A REVERSIBLE CO2 SYSTEM UNDER VARIOUS OPERATING CONDITIONS" in Zbornik 53. Međunarodnog kongresa o KGH, 2022 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_5734 .

TY  - CONF
AU  - Mandić, Aleksa
AU  - Milovančević, Uroš
AU  - Beljanski, Vladimir
AU  - Otović, Milena
AU  - Černicin, Vladimir
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5732
AB  - This paper analyzes the operational characteristics of the Tuzla brewery refrigeration system after the installation of the Danfoss IPS8 air purging device. In order for an analysis such as this to be conducted correctly, one must understand where in the brewing industry the need for refrigeration occurs, how non-condensable gases are accumulated inside of the refrigeration system, and how the separation of non-condensable gases is done. After the theoretical part of the analysis, in which the thermodynamic basics of the ammonia refrigeration cycle is explained, an analysis of annual savings was conducted. The results of the analysis are presented in the form of annual savings in electricity consumption, for different operating conditions of the specific refrigeration system with and without a purger. At the end of this analysis, the amount of released non-condensable gases were also calculated.
PB  - Beograd: SMEITS
C3  - Zbornik 53. Međunarodnog kongresa o KGH
T1  - EFFECTS OF PURGING NON-CONDENSABLE GASES FROM AMMONIA REFRIGERATION SYSTEM
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5732
ER  - 

@conference{
author = "Mandić, Aleksa and Milovančević, Uroš and Beljanski, Vladimir and Otović, Milena and Černicin, Vladimir",
year = "2023",
abstract = "This paper analyzes the operational characteristics of the Tuzla brewery refrigeration system after the installation of the Danfoss IPS8 air purging device. In order for an analysis such as this to be conducted correctly, one must understand where in the brewing industry the need for refrigeration occurs, how non-condensable gases are accumulated inside of the refrigeration system, and how the separation of non-condensable gases is done. After the theoretical part of the analysis, in which the thermodynamic basics of the ammonia refrigeration cycle is explained, an analysis of annual savings was conducted. The results of the analysis are presented in the form of annual savings in electricity consumption, for different operating conditions of the specific refrigeration system with and without a purger. At the end of this analysis, the amount of released non-condensable gases were also calculated.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 53. Međunarodnog kongresa o KGH",
title = "EFFECTS OF PURGING NON-CONDENSABLE GASES FROM AMMONIA REFRIGERATION SYSTEM",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5732"
}

Mandić, A., Milovančević, U., Beljanski, V., Otović, M.,& Černicin, V.. (2023). EFFECTS OF PURGING NON-CONDENSABLE GASES FROM AMMONIA REFRIGERATION SYSTEM. in Zbornik 53. Međunarodnog kongresa o KGH
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5732

Mandić A, Milovančević U, Beljanski V, Otović M, Černicin V. EFFECTS OF PURGING NON-CONDENSABLE GASES FROM AMMONIA REFRIGERATION SYSTEM. in Zbornik 53. Međunarodnog kongresa o KGH. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_5732 .

Mandić, Aleksa, Milovančević, Uroš, Beljanski, Vladimir, Otović, Milena, Černicin, Vladimir, "EFFECTS OF PURGING NON-CONDENSABLE GASES FROM AMMONIA REFRIGERATION SYSTEM" in Zbornik 53. Međunarodnog kongresa o KGH (2023),
https://hdl.handle.net/21.15107/rcub_machinery_5732 .

TY  - CONF
AU  - Tamindžić, Jaško
AU  - Tucović, Milica
AU  - Sretenović, Aleksandra
AU  - Milovančević, Uroš
AU  - Černicin, Vladimir
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5539
AB  - The largest amount of energy in Serbia households is spent on heating needs. Therefore, the main idea of this paper is to compare the heating bills for a residential building in Belgrade using various energy sources. Electric boiler, gas-fired condensing boiler, and air-to-water heat pump are analyzed. For calculating expenses, the current electricity and gas rates in Serbia have been used. For selected cases, both primary energy use and CO2 emission have been compared.
PB  - Beograd: SMEITS
C3  - Zbornik 53. Međunarodnog kongresa o KGH
T1  - ANALYSIS OF ENERGY CONSUMPTION OF A RESIDENTIAL BUILDING USING HOURLY SIMULATIONS
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5539
ER  - 

@conference{
author = "Tamindžić, Jaško and Tucović, Milica and Sretenović, Aleksandra and Milovančević, Uroš and Černicin, Vladimir",
year = "2023",
abstract = "The largest amount of energy in Serbia households is spent on heating needs. Therefore, the main idea of this paper is to compare the heating bills for a residential building in Belgrade using various energy sources. Electric boiler, gas-fired condensing boiler, and air-to-water heat pump are analyzed. For calculating expenses, the current electricity and gas rates in Serbia have been used. For selected cases, both primary energy use and CO2 emission have been compared.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 53. Međunarodnog kongresa o KGH",
title = "ANALYSIS OF ENERGY CONSUMPTION OF A RESIDENTIAL BUILDING USING HOURLY SIMULATIONS",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5539"
}

Tamindžić, J., Tucović, M., Sretenović, A., Milovančević, U.,& Černicin, V.. (2023). ANALYSIS OF ENERGY CONSUMPTION OF A RESIDENTIAL BUILDING USING HOURLY SIMULATIONS. in Zbornik 53. Međunarodnog kongresa o KGH
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5539

Tamindžić J, Tucović M, Sretenović A, Milovančević U, Černicin V. ANALYSIS OF ENERGY CONSUMPTION OF A RESIDENTIAL BUILDING USING HOURLY SIMULATIONS. in Zbornik 53. Međunarodnog kongresa o KGH. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_5539 .

Tamindžić, Jaško, Tucović, Milica, Sretenović, Aleksandra, Milovančević, Uroš, Černicin, Vladimir, "ANALYSIS OF ENERGY CONSUMPTION OF A RESIDENTIAL BUILDING USING HOURLY SIMULATIONS" in Zbornik 53. Međunarodnog kongresa o KGH (2023),
https://hdl.handle.net/21.15107/rcub_machinery_5539 .

TY  - BOOK
AU  - Bajc, Tamara
AU  - Todorović, Maja
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4543
PB  - Univerzitet u Beogradu Mašinski fakultet
T2  - Univerzitet u Beogradu Mašinski fakultet
T1  - Tehnika grejanja kroz primere iz prakse
EP  - 99
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4543
ER  - 

@book{
author = "Bajc, Tamara and Todorović, Maja",
year = "2022",
publisher = "Univerzitet u Beogradu Mašinski fakultet",
journal = "Univerzitet u Beogradu Mašinski fakultet",
title = "Tehnika grejanja kroz primere iz prakse",
pages = "99-1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4543"
}

Bajc, T.,& Todorović, M.. (2022). Tehnika grejanja kroz primere iz prakse. in Univerzitet u Beogradu Mašinski fakultet
Univerzitet u Beogradu Mašinski fakultet., 1-99.
https://hdl.handle.net/21.15107/rcub_machinery_4543

Bajc T, Todorović M. Tehnika grejanja kroz primere iz prakse. in Univerzitet u Beogradu Mašinski fakultet. 2022;:1-99.
https://hdl.handle.net/21.15107/rcub_machinery_4543 .

Bajc, Tamara, Todorović, Maja, "Tehnika grejanja kroz primere iz prakse" in Univerzitet u Beogradu Mašinski fakultet (2022):1-99,
https://hdl.handle.net/21.15107/rcub_machinery_4543 .

TY  - JOUR
AU  - Ivanović, Milica
AU  - Černicin, Vladimir
AU  - Milovančević, Uroš
AU  - Otović, Milena
AU  - Stevanović, Snežana M.
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5730
AB  - The paper analyzed three generations of R744 systems: the basic booster system, the booster system with parallel compression, and the multi ejector system. The aim was to compare these systems from the point of view of efficiency and electricity consumption. The analysis is based on the model with two temperature levels of evaporators –30 °C and –10 °C, and with a total cooling capacity of 250 kW and 150 kW, respectively. The analysis was carried out for the climatic conditions of the city of Belgrade in the summer period when the greatest differences in operation are expected. The results showed that the next system generations achieve savings in electricity consumption for the considered period.
PB  - Beograd: SMEITS
T2  - KGH. Klimatizacija, grejanje, hlađenje
T1  - COMPARATIVE ANALYSIS OF THREE GENERATIONS OF TRANSCRITICAL CO2 SYSTEMS
IS  - 4
VL  - 51
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5730
ER  - 

@article{
author = "Ivanović, Milica and Černicin, Vladimir and Milovančević, Uroš and Otović, Milena and Stevanović, Snežana M.",
year = "2022",
abstract = "The paper analyzed three generations of R744 systems: the basic booster system, the booster system with parallel compression, and the multi ejector system. The aim was to compare these systems from the point of view of efficiency and electricity consumption. The analysis is based on the model with two temperature levels of evaporators –30 °C and –10 °C, and with a total cooling capacity of 250 kW and 150 kW, respectively. The analysis was carried out for the climatic conditions of the city of Belgrade in the summer period when the greatest differences in operation are expected. The results showed that the next system generations achieve savings in electricity consumption for the considered period.",
publisher = "Beograd: SMEITS",
journal = "KGH. Klimatizacija, grejanje, hlađenje",
title = "COMPARATIVE ANALYSIS OF THREE GENERATIONS OF TRANSCRITICAL CO2 SYSTEMS",
number = "4",
volume = "51",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5730"
}

Ivanović, M., Černicin, V., Milovančević, U., Otović, M.,& Stevanović, S. M.. (2022). COMPARATIVE ANALYSIS OF THREE GENERATIONS OF TRANSCRITICAL CO2 SYSTEMS. in KGH. Klimatizacija, grejanje, hlađenje
Beograd: SMEITS., 51(4).
https://hdl.handle.net/21.15107/rcub_machinery_5730

Ivanović M, Černicin V, Milovančević U, Otović M, Stevanović SM. COMPARATIVE ANALYSIS OF THREE GENERATIONS OF TRANSCRITICAL CO2 SYSTEMS. in KGH. Klimatizacija, grejanje, hlađenje. 2022;51(4).
https://hdl.handle.net/21.15107/rcub_machinery_5730 .

Ivanović, Milica, Černicin, Vladimir, Milovančević, Uroš, Otović, Milena, Stevanović, Snežana M., "COMPARATIVE ANALYSIS OF THREE GENERATIONS OF TRANSCRITICAL CO2 SYSTEMS" in KGH. Klimatizacija, grejanje, hlađenje, 51, no. 4 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_5730 .

TY  - CONF
AU  - Černicin, Vladimir
AU  - Milovančević, Uroš
AU  - Gojak, Milan
AU  - Otović, Milena
AU  - Sretenović, Aleksandra
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5014
AB  - The use of carbon dioxide (CO2) refrigeration systems is increasingly present in modern supermarkets. Compared to conventional systems with freons, these systems use a natural and environmentally friendly refrigerant, but their energy efficiency is lower. However, with the advent of new technologies and better understanding of carbon dioxide, space has been created for system improvement and the introduction of new technical solutions. Also, one of the useful methods for improving the operation of the transcritical CO2 system is the determination of the optimum high side pressure in the gas cooler.
In this paper, two transcritical CO2 systems (1st generation) are presented, which represent a potential technical solution for the system that will be carried out in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade. In order to maintain the maximum coefficient of performance (COP) with optimum high side pressure, a thermodynamic analysis was carried out for one selected system. In addition to the influence of the ambient air temperature, the possible affecting parameters on  COP and optimum high side pressure was also considered. Finally, a proper control equation is given.
PB  - Beograd: SMEITS
C3  - Zbornik 53. Međunarodnog kongresa o KGH, 2022
T1  - THEORETICAL DETERMINATION OF THE OPTIMUM PRESSURE OF THE TRANSCRITICAL CO2 SYSTEMS IN SUPERMARKET
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5014
ER  - 

@conference{
author = "Černicin, Vladimir and Milovančević, Uroš and Gojak, Milan and Otović, Milena and Sretenović, Aleksandra",
year = "2022",
abstract = "The use of carbon dioxide (CO2) refrigeration systems is increasingly present in modern supermarkets. Compared to conventional systems with freons, these systems use a natural and environmentally friendly refrigerant, but their energy efficiency is lower. However, with the advent of new technologies and better understanding of carbon dioxide, space has been created for system improvement and the introduction of new technical solutions. Also, one of the useful methods for improving the operation of the transcritical CO2 system is the determination of the optimum high side pressure in the gas cooler.
In this paper, two transcritical CO2 systems (1st generation) are presented, which represent a potential technical solution for the system that will be carried out in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade. In order to maintain the maximum coefficient of performance (COP) with optimum high side pressure, a thermodynamic analysis was carried out for one selected system. In addition to the influence of the ambient air temperature, the possible affecting parameters on  COP and optimum high side pressure was also considered. Finally, a proper control equation is given.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 53. Međunarodnog kongresa o KGH, 2022",
title = "THEORETICAL DETERMINATION OF THE OPTIMUM PRESSURE OF THE TRANSCRITICAL CO2 SYSTEMS IN SUPERMARKET",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5014"
}

Černicin, V., Milovančević, U., Gojak, M., Otović, M.,& Sretenović, A.. (2022). THEORETICAL DETERMINATION OF THE OPTIMUM PRESSURE OF THE TRANSCRITICAL CO2 SYSTEMS IN SUPERMARKET. in Zbornik 53. Međunarodnog kongresa o KGH, 2022
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5014

Černicin V, Milovančević U, Gojak M, Otović M, Sretenović A. THEORETICAL DETERMINATION OF THE OPTIMUM PRESSURE OF THE TRANSCRITICAL CO2 SYSTEMS IN SUPERMARKET. in Zbornik 53. Međunarodnog kongresa o KGH, 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_5014 .

Černicin, Vladimir, Milovančević, Uroš, Gojak, Milan, Otović, Milena, Sretenović, Aleksandra, "THEORETICAL DETERMINATION OF THE OPTIMUM PRESSURE OF THE TRANSCRITICAL CO2 SYSTEMS IN SUPERMARKET" in Zbornik 53. Međunarodnog kongresa o KGH, 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_5014 .

TY  - CONF
AU  - Kerčov, Anton
AU  - Bajc, Tamara
AU  - Gojak, Milan
AU  - Todorović, Maja
AU  - Pivac, Nikolina
AU  - Nižetić, Sandro
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4536
AB  - The paper deals with an analysis of existing thermal
comfort models based on exergy approach and the impact of
models’ input parameters to the calculation results. The aim of
this paper is to present the results of the application of five
different thermal comfort models based on the exergy analysis,
to compare them, and to determine if they coincide with the
results obtained by using Fanger’s model. While models that
are the most commonly used to evaluate and predict thermal
comfort conditions are based on the first law of thermodynamics,
a handful of authors used both the first and the second law
of thermodynamics in order to develop new thermal comfort
models. Even though the optimal comfort conditions according
to these models may not differ by large margin from the optimal
thermal comfort conditions according to Fanger’s model, it is
concluded that justification of using models based on the exergy
analysis to evaluate thermal comfort is very dependent on the
input parameters, which should all be taken into consideration
separately.
PB  - IEEE
C3  - Proceedings of 7th International Conference on Smart and Sustainable Technologies SpliTech2022
T1  - Comparison between different thermal comfort models based on the exergy analysis
DO  - 10.23919/SpliTech55088.2022.9854270
ER  - 

@conference{
author = "Kerčov, Anton and Bajc, Tamara and Gojak, Milan and Todorović, Maja and Pivac, Nikolina and Nižetić, Sandro",
year = "2022",
abstract = "The paper deals with an analysis of existing thermal
comfort models based on exergy approach and the impact of
models’ input parameters to the calculation results. The aim of
this paper is to present the results of the application of five
different thermal comfort models based on the exergy analysis,
to compare them, and to determine if they coincide with the
results obtained by using Fanger’s model. While models that
are the most commonly used to evaluate and predict thermal
comfort conditions are based on the first law of thermodynamics,
a handful of authors used both the first and the second law
of thermodynamics in order to develop new thermal comfort
models. Even though the optimal comfort conditions according
to these models may not differ by large margin from the optimal
thermal comfort conditions according to Fanger’s model, it is
concluded that justification of using models based on the exergy
analysis to evaluate thermal comfort is very dependent on the
input parameters, which should all be taken into consideration
separately.",
publisher = "IEEE",
journal = "Proceedings of 7th International Conference on Smart and Sustainable Technologies SpliTech2022",
title = "Comparison between different thermal comfort models based on the exergy analysis",
doi = "10.23919/SpliTech55088.2022.9854270"
}

Kerčov, A., Bajc, T., Gojak, M., Todorović, M., Pivac, N.,& Nižetić, S.. (2022). Comparison between different thermal comfort models based on the exergy analysis. in Proceedings of 7th International Conference on Smart and Sustainable Technologies SpliTech2022
IEEE..
https://doi.org/10.23919/SpliTech55088.2022.9854270

Kerčov A, Bajc T, Gojak M, Todorović M, Pivac N, Nižetić S. Comparison between different thermal comfort models based on the exergy analysis. in Proceedings of 7th International Conference on Smart and Sustainable Technologies SpliTech2022. 2022;.
doi:10.23919/SpliTech55088.2022.9854270 .

Kerčov, Anton, Bajc, Tamara, Gojak, Milan, Todorović, Maja, Pivac, Nikolina, Nižetić, Sandro, "Comparison between different thermal comfort models based on the exergy analysis" in Proceedings of 7th International Conference on Smart and Sustainable Technologies SpliTech2022 (2022),
https://doi.org/10.23919/SpliTech55088.2022.9854270 . .

TY  - CONF
AU  - Mališić, Snežana
AU  - Ivanović, Milica
AU  - Bajc, Tamara
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4535
AB  - The population in Serbia predominantly lives and works in traditional buildings from the middle of the last century. This paper investigates the indoor thermal environments in two business offices in the same building, located in Belgrade, Serbia. They are approximately the same size, on the same floor, but on the opposite sides of the building. In Office 1, the exposure to direct sunlight is for about one hour in the morning in winter period, due to the NE orientation. Office 2 is SW oriented and exposed to sunlight starting from 12.30h until the sunset. The study was carried out in a traditional office building from the middle of the last century, with typical walls without insulation. Physical parameters such as air temperature, measured by K-type sensors (TK1 and TK2), relative air speed, and relative humidity are the main factors that influence the indoor thermal environment. Results regarding the thermal comfort indices, PMV and PPD, were obtained by measurements, which were performed one time per day, during the working hours, at noon, in order to get the relevant conclusions with respect to the orientation and  sunlight exposure of the offices. Other physical parameters mentioned above were measured three times per day, at two heights. In this work, the results of measurements of PMV and PPD for the whole heating season are presented.
PB  - Čačak : DQM Research Center
C3  - 1Proceedings / 13th DQM International Conference Life Cycle Engineering and Management DQM-POLYTECH-2022, june 23-24, 2022, Prijevor, Serbia
T1  - EXPERIMENTAL RESEARCH ON THERMAL COMFORT IN OFFICES REGARDING BUILDING ORIENTATION IN WINTER PERIOD
EP  - 335
SP  - 327
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4535
ER  - 

@conference{
author = "Mališić, Snežana and Ivanović, Milica and Bajc, Tamara",
year = "2022",
abstract = "The population in Serbia predominantly lives and works in traditional buildings from the middle of the last century. This paper investigates the indoor thermal environments in two business offices in the same building, located in Belgrade, Serbia. They are approximately the same size, on the same floor, but on the opposite sides of the building. In Office 1, the exposure to direct sunlight is for about one hour in the morning in winter period, due to the NE orientation. Office 2 is SW oriented and exposed to sunlight starting from 12.30h until the sunset. The study was carried out in a traditional office building from the middle of the last century, with typical walls without insulation. Physical parameters such as air temperature, measured by K-type sensors (TK1 and TK2), relative air speed, and relative humidity are the main factors that influence the indoor thermal environment. Results regarding the thermal comfort indices, PMV and PPD, were obtained by measurements, which were performed one time per day, during the working hours, at noon, in order to get the relevant conclusions with respect to the orientation and  sunlight exposure of the offices. Other physical parameters mentioned above were measured three times per day, at two heights. In this work, the results of measurements of PMV and PPD for the whole heating season are presented.",
publisher = "Čačak : DQM Research Center",
journal = "1Proceedings / 13th DQM International Conference Life Cycle Engineering and Management DQM-POLYTECH-2022, june 23-24, 2022, Prijevor, Serbia",
title = "EXPERIMENTAL RESEARCH ON THERMAL COMFORT IN OFFICES REGARDING BUILDING ORIENTATION IN WINTER PERIOD",
pages = "335-327",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4535"
}

Mališić, S., Ivanović, M.,& Bajc, T.. (2022). EXPERIMENTAL RESEARCH ON THERMAL COMFORT IN OFFICES REGARDING BUILDING ORIENTATION IN WINTER PERIOD. in 1Proceedings / 13th DQM International Conference Life Cycle Engineering and Management DQM-POLYTECH-2022, june 23-24, 2022, Prijevor, Serbia
Čačak : DQM Research Center., 327-335.
https://hdl.handle.net/21.15107/rcub_machinery_4535

Mališić S, Ivanović M, Bajc T. EXPERIMENTAL RESEARCH ON THERMAL COMFORT IN OFFICES REGARDING BUILDING ORIENTATION IN WINTER PERIOD. in 1Proceedings / 13th DQM International Conference Life Cycle Engineering and Management DQM-POLYTECH-2022, june 23-24, 2022, Prijevor, Serbia. 2022;:327-335.
https://hdl.handle.net/21.15107/rcub_machinery_4535 .

Mališić, Snežana, Ivanović, Milica, Bajc, Tamara, "EXPERIMENTAL RESEARCH ON THERMAL COMFORT IN OFFICES REGARDING BUILDING ORIENTATION IN WINTER PERIOD" in 1Proceedings / 13th DQM International Conference Life Cycle Engineering and Management DQM-POLYTECH-2022, june 23-24, 2022, Prijevor, Serbia (2022):327-335,
https://hdl.handle.net/21.15107/rcub_machinery_4535 .

TY  - JOUR
AU  - Gojak, Milan
AU  - Bajc, Tamara
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3748
AB  - Residential sector is considered one of the largest consumers of primary energy in the world. The main part of total energy consumption in buildings refers to heating. The study presents a thermodynamic sustainability assessment of different energy sources for residential building heating. The paper presents universal methodology, which can be applied to energy and exergy analysis for all types of buildings. Various options of energy sources were studied, namely: coal, natural gas, electricity, district heating, air-water heat pump, biomass and district heating with a cogeneration. Energy and exergy analyses were conducted and appropriate efficiencies were determined. The calculation of an environmental impact factor and exergetic sustainability index for all types of considered energy sources was performed. The results showed that exergy efficiency was very low in all analyzed cases except for biomass, which leads to poor thermodynamic compatibility of energy quality from the supplied side and the energy used for building heating. It was shown that the highest exergy efficiency was in the case of biomass utilization (about 29%), due to the energy used from renewable energy sources. The minimum environmental impact factor (2.48) and maximum exergetic sustainability index (0.403) were found for the case of biomass utilization.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Science and Technology For The Built Environment
T1  - Thermodynamic sustainability assessment for residential building heating comparing different energy sources
EP  - 83
IS  - 1
SP  - 73
VL  - 28
DO  - 10.1080/23744731.2021.1908043
ER  - 

@article{
author = "Gojak, Milan and Bajc, Tamara",
year = "2022",
abstract = "Residential sector is considered one of the largest consumers of primary energy in the world. The main part of total energy consumption in buildings refers to heating. The study presents a thermodynamic sustainability assessment of different energy sources for residential building heating. The paper presents universal methodology, which can be applied to energy and exergy analysis for all types of buildings. Various options of energy sources were studied, namely: coal, natural gas, electricity, district heating, air-water heat pump, biomass and district heating with a cogeneration. Energy and exergy analyses were conducted and appropriate efficiencies were determined. The calculation of an environmental impact factor and exergetic sustainability index for all types of considered energy sources was performed. The results showed that exergy efficiency was very low in all analyzed cases except for biomass, which leads to poor thermodynamic compatibility of energy quality from the supplied side and the energy used for building heating. It was shown that the highest exergy efficiency was in the case of biomass utilization (about 29%), due to the energy used from renewable energy sources. The minimum environmental impact factor (2.48) and maximum exergetic sustainability index (0.403) were found for the case of biomass utilization.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Science and Technology For The Built Environment",
title = "Thermodynamic sustainability assessment for residential building heating comparing different energy sources",
pages = "83-73",
number = "1",
volume = "28",
doi = "10.1080/23744731.2021.1908043"
}

Gojak, M.,& Bajc, T.. (2022). Thermodynamic sustainability assessment for residential building heating comparing different energy sources. in Science and Technology For The Built Environment
Taylor & Francis Inc, Philadelphia., 28(1), 73-83.
https://doi.org/10.1080/23744731.2021.1908043

Gojak M, Bajc T. Thermodynamic sustainability assessment for residential building heating comparing different energy sources. in Science and Technology For The Built Environment. 2022;28(1):73-83.
doi:10.1080/23744731.2021.1908043 .

Gojak, Milan, Bajc, Tamara, "Thermodynamic sustainability assessment for residential building heating comparing different energy sources" in Science and Technology For The Built Environment, 28, no. 1 (2022):73-83,
https://doi.org/10.1080/23744731.2021.1908043 . .

TY  - JOUR
AU  - Mandić, Petar
AU  - Bošković, Marko C.
AU  - Sekara, Tomislav B.
AU  - Lazarević, Mihailo
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/90
AB  - This paper presents a new optimisation method for PID controller cascaded with a lead-lag compensator (PIDC). Parameters of the controller are obtained by solving the constrained optimisation problem. We propose two variants of the optimality criterion. The first one is defined through the max-min optimisation problem wherein objective function is the amplitude frequency response of the PIDC controller. The second one is based on an effective approximation of the minimum value of the amplitude frequency response of the PIDC controller. Consequently, we obtain a computationally less expensive problem. Both variants of optimality criterion result in efficient load disturbance and noise rejection, while robustness is ensured by constraining the value of the maximum sensitivity Ms. Good reference shaping is supported with proper constraints based on the Amplitude Optimum (AO) principle. Numerous batches of processes typically encountered in the industry are used to demonstrate the effectiveness of the proposed design method.
PB  - Taylor & Francis Ltd, Abingdon
T2  - International Journal of Control
T1  - A new optimisation method of PIDC controller under constraints on robustness and sensitivity to measurement noise using amplitude optimum principle
DO  - 10.1080/00207179.2021.1912392
ER  - 

@article{
author = "Mandić, Petar and Bošković, Marko C. and Sekara, Tomislav B. and Lazarević, Mihailo",
year = "2021",
abstract = "This paper presents a new optimisation method for PID controller cascaded with a lead-lag compensator (PIDC). Parameters of the controller are obtained by solving the constrained optimisation problem. We propose two variants of the optimality criterion. The first one is defined through the max-min optimisation problem wherein objective function is the amplitude frequency response of the PIDC controller. The second one is based on an effective approximation of the minimum value of the amplitude frequency response of the PIDC controller. Consequently, we obtain a computationally less expensive problem. Both variants of optimality criterion result in efficient load disturbance and noise rejection, while robustness is ensured by constraining the value of the maximum sensitivity Ms. Good reference shaping is supported with proper constraints based on the Amplitude Optimum (AO) principle. Numerous batches of processes typically encountered in the industry are used to demonstrate the effectiveness of the proposed design method.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "International Journal of Control",
title = "A new optimisation method of PIDC controller under constraints on robustness and sensitivity to measurement noise using amplitude optimum principle",
doi = "10.1080/00207179.2021.1912392"
}

Mandić, P., Bošković, M. C., Sekara, T. B.,& Lazarević, M.. (2021). A new optimisation method of PIDC controller under constraints on robustness and sensitivity to measurement noise using amplitude optimum principle. in International Journal of Control
Taylor & Francis Ltd, Abingdon..
https://doi.org/10.1080/00207179.2021.1912392

Mandić P, Bošković MC, Sekara TB, Lazarević M. A new optimisation method of PIDC controller under constraints on robustness and sensitivity to measurement noise using amplitude optimum principle. in International Journal of Control. 2021;.
doi:10.1080/00207179.2021.1912392 .

Mandić, Petar, Bošković, Marko C., Sekara, Tomislav B., Lazarević, Mihailo, "A new optimisation method of PIDC controller under constraints on robustness and sensitivity to measurement noise using amplitude optimum principle" in International Journal of Control (2021),
https://doi.org/10.1080/00207179.2021.1912392 . .

TY  - JOUR
AU  - Lazarević, Mihailo
AU  - Mandić, Petar
AU  - Ostojić, Srdan
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3584
AB  - Recently, calculus of general order alpha is an element of R has attracted attention in scientific literature, where fractional operators are often used for control issues and the modeling of the dynamics of complex systems. In this work, some attention will be devoted to the problem of viscous friction in robotic joints. The calculus of general order and the calculus of variations are utilized for the modeling of viscous friction which is extended to the fractional derivative of the angular displacement. In addition, to solve the output tracking problem of a robotic manipulator with three DOFs with revolute joints in the presence of model uncertainties, robust advanced iterative learning control (AILC) is introduced. First, a feedback linearization procedure of a nonlinear robotic system is applied. Then, the proposed intelligent feedforward-feedback AILC algorithm is introduced. The convergence of the proposed AILC scheme is established in the time domain in detail. Finally, simulations on the given robotic arm system confirm the effectiveness of the robust AILC method.
PB  - Sage Publications Ltd, London
T2  - Proceedings of The Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Scie
T1  - Further results on advanced robust iterative learning control and modeling of robotic systems
EP  - 4734
IS  - 20
SP  - 4719
VL  - 235
DO  - 10.1177/0954406220965996
ER  - 

@article{
author = "Lazarević, Mihailo and Mandić, Petar and Ostojić, Srdan",
year = "2021",
abstract = "Recently, calculus of general order alpha is an element of R has attracted attention in scientific literature, where fractional operators are often used for control issues and the modeling of the dynamics of complex systems. In this work, some attention will be devoted to the problem of viscous friction in robotic joints. The calculus of general order and the calculus of variations are utilized for the modeling of viscous friction which is extended to the fractional derivative of the angular displacement. In addition, to solve the output tracking problem of a robotic manipulator with three DOFs with revolute joints in the presence of model uncertainties, robust advanced iterative learning control (AILC) is introduced. First, a feedback linearization procedure of a nonlinear robotic system is applied. Then, the proposed intelligent feedforward-feedback AILC algorithm is introduced. The convergence of the proposed AILC scheme is established in the time domain in detail. Finally, simulations on the given robotic arm system confirm the effectiveness of the robust AILC method.",
publisher = "Sage Publications Ltd, London",
journal = "Proceedings of The Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Scie",
title = "Further results on advanced robust iterative learning control and modeling of robotic systems",
pages = "4734-4719",
number = "20",
volume = "235",
doi = "10.1177/0954406220965996"
}

Lazarević, M., Mandić, P.,& Ostojić, S.. (2021). Further results on advanced robust iterative learning control and modeling of robotic systems. in Proceedings of The Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Scie
Sage Publications Ltd, London., 235(20), 4719-4734.
https://doi.org/10.1177/0954406220965996

Lazarević M, Mandić P, Ostojić S. Further results on advanced robust iterative learning control and modeling of robotic systems. in Proceedings of The Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Scie. 2021;235(20):4719-4734.
doi:10.1177/0954406220965996 .

Lazarević, Mihailo, Mandić, Petar, Ostojić, Srdan, "Further results on advanced robust iterative learning control and modeling of robotic systems" in Proceedings of The Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Scie, 235, no. 20 (2021):4719-4734,
https://doi.org/10.1177/0954406220965996 . .

TY  - CONF
AU  - Otović, Milena
AU  - Milovančević, Uroš
AU  - Genić, Srbislav
AU  - Mitrović, Nenad
AU  - Černicin, Vladimir
AU  - Otović, Srđan
AU  - Antić, Milan I.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5535
AB  - On the hitherto installed chillers/rooftop units/dry coolers and air coolers, a significant improvement in cooling was noticed in the summer mode when the pipe bundle is sprayed with water. Tests have been performed on systems that produce water mist (micron-sized water droplets), which are formed by spraying water under high pressure through the nozzles/nozzle openings. When a drop of micron-sized water comes in contact with warm air, it evaporates very quickly, absorbing a certain amount of heat, which results in cooling the air. This improves the operation of the cooler in critical periods when the ambient air temperature is very high. The aim of the test is to determine the improvement of the cooler operation under operating conditions with the application of the described system in relation to the operating mode without water spraying (dry operating mode).
PB  - Beograd: SMEITS
C3  - Zbornik 51. Međunarodnog kongresa o KGH
T1  - TESTING OF THE INFLUENCE OF THE SPRAY COOLING SYSTEM ON THE AIR COOLER EFFICIENCY
DO  - 10.24094/kghk.020.51.1.11
ER  - 

@conference{
author = "Otović, Milena and Milovančević, Uroš and Genić, Srbislav and Mitrović, Nenad and Černicin, Vladimir and Otović, Srđan and Antić, Milan I.",
year = "2020",
abstract = "On the hitherto installed chillers/rooftop units/dry coolers and air coolers, a significant improvement in cooling was noticed in the summer mode when the pipe bundle is sprayed with water. Tests have been performed on systems that produce water mist (micron-sized water droplets), which are formed by spraying water under high pressure through the nozzles/nozzle openings. When a drop of micron-sized water comes in contact with warm air, it evaporates very quickly, absorbing a certain amount of heat, which results in cooling the air. This improves the operation of the cooler in critical periods when the ambient air temperature is very high. The aim of the test is to determine the improvement of the cooler operation under operating conditions with the application of the described system in relation to the operating mode without water spraying (dry operating mode).",
publisher = "Beograd: SMEITS",
journal = "Zbornik 51. Međunarodnog kongresa o KGH",
title = "TESTING OF THE INFLUENCE OF THE SPRAY COOLING SYSTEM ON THE AIR COOLER EFFICIENCY",
doi = "10.24094/kghk.020.51.1.11"
}

Otović, M., Milovančević, U., Genić, S., Mitrović, N., Černicin, V., Otović, S.,& Antić, M. I.. (2020). TESTING OF THE INFLUENCE OF THE SPRAY COOLING SYSTEM ON THE AIR COOLER EFFICIENCY. in Zbornik 51. Međunarodnog kongresa o KGH
Beograd: SMEITS..
https://doi.org/10.24094/kghk.020.51.1.11

Otović M, Milovančević U, Genić S, Mitrović N, Černicin V, Otović S, Antić MI. TESTING OF THE INFLUENCE OF THE SPRAY COOLING SYSTEM ON THE AIR COOLER EFFICIENCY. in Zbornik 51. Međunarodnog kongresa o KGH. 2020;.
doi:10.24094/kghk.020.51.1.11 .

Otović, Milena, Milovančević, Uroš, Genić, Srbislav, Mitrović, Nenad, Černicin, Vladimir, Otović, Srđan, Antić, Milan I., "TESTING OF THE INFLUENCE OF THE SPRAY COOLING SYSTEM ON THE AIR COOLER EFFICIENCY" in Zbornik 51. Međunarodnog kongresa o KGH (2020),
https://doi.org/10.24094/kghk.020.51.1.11 . .

TY  - CONF
AU  - Otović, Milena
AU  - Genić, Srbislav
AU  - Milovančević, Uroš
AU  - Černicin, Vladimir
AU  - Otović, Srđan
AU  - Stevanović, Snežana M.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5517
AB  - This paper deals with the procedure for measuring the relevant parameters of plate-finned tube heat exchangers operating as an air heaters. Besides the description of the experimental installation, the most important geometric characteristics of these appliances are given. In order to determine the relevant parameters for dry and wet regimes (for cases with and without spray cooling), experimental measurements of the heat and hydraulic performance of the heat exchangers were made. Water flowed through the pipes as a warmer fluid. During the experiments, the flow rates and temperatures of the working fluids were varied within the limits defined by the operating parameters of the installation itself, sufficient to allow the obtained results to be generalized. The experimental data were processed by appropriate statistical methods; the aim was to determine equations suitable for engineering practice. The coefficients of the air-side heat and mass transfer and friction factor are defined on the complex geometry of this type of heat exchangers under realistic operating conditions, as a function of the relevant similarity criteria.
PB  - Beograd: SMEITS
C3  - Zbornik 50. Međunarodnog kongresa o KGH
T1  - TESTING OF AIR HEATERS WITH PLATE FINNED TUBES WITH SPRAY COOLING
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5517
ER  - 

@conference{
author = "Otović, Milena and Genić, Srbislav and Milovančević, Uroš and Černicin, Vladimir and Otović, Srđan and Stevanović, Snežana M.",
year = "2020",
abstract = "This paper deals with the procedure for measuring the relevant parameters of plate-finned tube heat exchangers operating as an air heaters. Besides the description of the experimental installation, the most important geometric characteristics of these appliances are given. In order to determine the relevant parameters for dry and wet regimes (for cases with and without spray cooling), experimental measurements of the heat and hydraulic performance of the heat exchangers were made. Water flowed through the pipes as a warmer fluid. During the experiments, the flow rates and temperatures of the working fluids were varied within the limits defined by the operating parameters of the installation itself, sufficient to allow the obtained results to be generalized. The experimental data were processed by appropriate statistical methods; the aim was to determine equations suitable for engineering practice. The coefficients of the air-side heat and mass transfer and friction factor are defined on the complex geometry of this type of heat exchangers under realistic operating conditions, as a function of the relevant similarity criteria.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 50. Međunarodnog kongresa o KGH",
title = "TESTING OF AIR HEATERS WITH PLATE FINNED TUBES WITH SPRAY COOLING",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5517"
}

Otović, M., Genić, S., Milovančević, U., Černicin, V., Otović, S.,& Stevanović, S. M.. (2020). TESTING OF AIR HEATERS WITH PLATE FINNED TUBES WITH SPRAY COOLING. in Zbornik 50. Međunarodnog kongresa o KGH
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5517

Otović M, Genić S, Milovančević U, Černicin V, Otović S, Stevanović SM. TESTING OF AIR HEATERS WITH PLATE FINNED TUBES WITH SPRAY COOLING. in Zbornik 50. Međunarodnog kongresa o KGH. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_5517 .

Otović, Milena, Genić, Srbislav, Milovančević, Uroš, Černicin, Vladimir, Otović, Srđan, Stevanović, Snežana M., "TESTING OF AIR HEATERS WITH PLATE FINNED TUBES WITH SPRAY COOLING" in Zbornik 50. Međunarodnog kongresa o KGH (2020),
https://hdl.handle.net/21.15107/rcub_machinery_5517 .

TY  - CONF
AU  - Ninković, Dimitrije
AU  - Milovančević, Uroš
AU  - Otović, Milena
AU  - Černicin, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5052
AB  - The paper analyzes the electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high-temperature circuit and CO2 in the low-temperature circuit, single-stage refrigeration system operating with R404A, and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined.
Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected.
PB  - Beograd: SMEITS
C3  - Zbornik 50. Međunarodnog kongresa o KGH
T1  - COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5052
ER  - 

@conference{
author = "Ninković, Dimitrije and Milovančević, Uroš and Otović, Milena and Černicin, Vladimir",
year = "2020",
abstract = "The paper analyzes the electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high-temperature circuit and CO2 in the low-temperature circuit, single-stage refrigeration system operating with R404A, and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined.
Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected.",
publisher = "Beograd: SMEITS",
journal = "Zbornik 50. Međunarodnog kongresa o KGH",
title = "COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5052"
}

Ninković, D., Milovančević, U., Otović, M.,& Černicin, V.. (2020). COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION. in Zbornik 50. Međunarodnog kongresa o KGH
Beograd: SMEITS..
https://hdl.handle.net/21.15107/rcub_machinery_5052

Ninković D, Milovančević U, Otović M, Černicin V. COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION. in Zbornik 50. Međunarodnog kongresa o KGH. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_5052 .

Ninković, Dimitrije, Milovančević, Uroš, Otović, Milena, Černicin, Vladimir, "COMPARATIVE ANALYSIS OF ELECTRIC ENERGY CONSUMPTION OF CASCADE SYSTEM R134a/CO2 WITH SINGLE-STAGE R404A AND TWO-STAGE CO2 INSTALLATION" in Zbornik 50. Međunarodnog kongresa o KGH (2020),
https://hdl.handle.net/21.15107/rcub_machinery_5052 .

TY  - CONF
AU  - Šošić, Darko
AU  - Savić, Aleksandar
AU  - Dobrić, Goran
AU  - Bajc, Tamara
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4533
AB  - Енергетски систем на нивоу града са временом
постаје све сложенији и разноликији. Различити носиоци
енергије међусобно су повезани ради испуњавања
различитих енергетских потреба. Уобичајени начин
распрегнуте анализе енергетских мрежа не одсликава праву
природу заједничког рада енергетског система. Као пример
повезаних система може да послужи систем даљинског
грејања и електро дистрибутивне мреже. Везу између ова два
система могу да представљају CHP јединице, топлотне пумпе
и електрични бојлери. У овом раду је приказан
декомпоновани електро хидро–термални прорачун.
PB  - Univerzitet u Istočnom Sarajevu, Elektrotehnički fakultet
C3  - Proceedings of 19th International Symposium INFOTEH-JAHORINA, 18-20 March 2020
T1  - Обједињена анализа електроенергетске и мреже даљинског система грејања
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4533
ER  - 

@conference{
author = "Šošić, Darko and Savić, Aleksandar and Dobrić, Goran and Bajc, Tamara",
year = "2020",
abstract = "Енергетски систем на нивоу града са временом
постаје све сложенији и разноликији. Различити носиоци
енергије међусобно су повезани ради испуњавања
различитих енергетских потреба. Уобичајени начин
распрегнуте анализе енергетских мрежа не одсликава праву
природу заједничког рада енергетског система. Као пример
повезаних система може да послужи систем даљинског
грејања и електро дистрибутивне мреже. Везу између ова два
система могу да представљају CHP јединице, топлотне пумпе
и електрични бојлери. У овом раду је приказан
декомпоновани електро хидро–термални прорачун.",
publisher = "Univerzitet u Istočnom Sarajevu, Elektrotehnički fakultet",
journal = "Proceedings of 19th International Symposium INFOTEH-JAHORINA, 18-20 March 2020",
title = "Обједињена анализа електроенергетске и мреже даљинског система грејања",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4533"
}

Šošić, D., Savić, A., Dobrić, G.,& Bajc, T.. (2020). Обједињена анализа електроенергетске и мреже даљинског система грејања. in Proceedings of 19th International Symposium INFOTEH-JAHORINA, 18-20 March 2020
Univerzitet u Istočnom Sarajevu, Elektrotehnički fakultet..
https://hdl.handle.net/21.15107/rcub_machinery_4533

Šošić D, Savić A, Dobrić G, Bajc T. Обједињена анализа електроенергетске и мреже даљинског система грејања. in Proceedings of 19th International Symposium INFOTEH-JAHORINA, 18-20 March 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_4533 .

Šošić, Darko, Savić, Aleksandar, Dobrić, Goran, Bajc, Tamara, "Обједињена анализа електроенергетске и мреже даљинског система грејања" in Proceedings of 19th International Symposium INFOTEH-JAHORINA, 18-20 March 2020 (2020),
https://hdl.handle.net/21.15107/rcub_machinery_4533 .

TY  - CONF
AU  - Matijević, Milan S.
AU  - Nedeljković, Miloš
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3320
AB  - This paper describes some pedagogical approaches of using electrical motors within engineering study programs. We are discussing the education of students who are without any electrical engineering background, and who only aim to use motors within different engineering applications like robots, hydro-mechanical or control engineering application. Laboratory support is typically expensive, especially for countries like Serbia, but laboratories are necessary for engineering education. The paper promotes problem-based learning approach which is based on affordable or as cheap as possible laboratory experiments.
PB  - Springer International Publishing Ag, Cham
C3  - Challenges of The Digital Transformation in Education, Icl2018, Vol 1
T1  - Design and Use of Digitally Controlled Electric Motors for Purpose of Engineering Education
EP  - 844
SP  - 833
VL  - 916
DO  - 10.1007/978-3-030-11932-4_77
ER  - 

@conference{
author = "Matijević, Milan S. and Nedeljković, Miloš",
year = "2020",
abstract = "This paper describes some pedagogical approaches of using electrical motors within engineering study programs. We are discussing the education of students who are without any electrical engineering background, and who only aim to use motors within different engineering applications like robots, hydro-mechanical or control engineering application. Laboratory support is typically expensive, especially for countries like Serbia, but laboratories are necessary for engineering education. The paper promotes problem-based learning approach which is based on affordable or as cheap as possible laboratory experiments.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Challenges of The Digital Transformation in Education, Icl2018, Vol 1",
title = "Design and Use of Digitally Controlled Electric Motors for Purpose of Engineering Education",
pages = "844-833",
volume = "916",
doi = "10.1007/978-3-030-11932-4_77"
}

Matijević, M. S.,& Nedeljković, M.. (2020). Design and Use of Digitally Controlled Electric Motors for Purpose of Engineering Education. in Challenges of The Digital Transformation in Education, Icl2018, Vol 1
Springer International Publishing Ag, Cham., 916, 833-844.
https://doi.org/10.1007/978-3-030-11932-4_77

Matijević MS, Nedeljković M. Design and Use of Digitally Controlled Electric Motors for Purpose of Engineering Education. in Challenges of The Digital Transformation in Education, Icl2018, Vol 1. 2020;916:833-844.
doi:10.1007/978-3-030-11932-4_77 .

Matijević, Milan S., Nedeljković, Miloš, "Design and Use of Digitally Controlled Electric Motors for Purpose of Engineering Education" in Challenges of The Digital Transformation in Education, Icl2018, Vol 1, 916 (2020):833-844,
https://doi.org/10.1007/978-3-030-11932-4_77 . .

TY  - CONF
AU  - Bajc, Tamara
AU  - Milanović, Stefan
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3068
AB  - Paper deals with an analysis of differences between the male and female responses regarding thermal comfort, noise and lighting level and indoor air quality in offices. The research was done in Belgrade, Serbia, for office building in a period from March to Jun 2018. Measurements for outdoor and indoor air parameters were done, together with the statistical survey of occupants. The results showed the significant differences in responses between male and women for the same state of the environment. It is noticed that men were more sensitive to the higher temperatures, preferring colder working environment, while women stated to feel more comfortable in slightly warmer environment. Study also showed that men were more tolerant to noise, while women were more sensitive to poor air quality.
PB  - IEEE, New York
C3  - 2019 4th International Conference on Smart and Sustainable Technologies (Splitech)
T1  - Gender differences in environment evaluation for office building
EP  - 26
SP  - 22
DO  - 10.23919/SpliTech.2019.8783130
ER  - 

@conference{
author = "Bajc, Tamara and Milanović, Stefan",
year = "2019",
abstract = "Paper deals with an analysis of differences between the male and female responses regarding thermal comfort, noise and lighting level and indoor air quality in offices. The research was done in Belgrade, Serbia, for office building in a period from March to Jun 2018. Measurements for outdoor and indoor air parameters were done, together with the statistical survey of occupants. The results showed the significant differences in responses between male and women for the same state of the environment. It is noticed that men were more sensitive to the higher temperatures, preferring colder working environment, while women stated to feel more comfortable in slightly warmer environment. Study also showed that men were more tolerant to noise, while women were more sensitive to poor air quality.",
publisher = "IEEE, New York",
journal = "2019 4th International Conference on Smart and Sustainable Technologies (Splitech)",
title = "Gender differences in environment evaluation for office building",
pages = "26-22",
doi = "10.23919/SpliTech.2019.8783130"
}

Bajc, T.,& Milanović, S.. (2019). Gender differences in environment evaluation for office building. in 2019 4th International Conference on Smart and Sustainable Technologies (Splitech)
IEEE, New York., 22-26.
https://doi.org/10.23919/SpliTech.2019.8783130

Bajc T, Milanović S. Gender differences in environment evaluation for office building. in 2019 4th International Conference on Smart and Sustainable Technologies (Splitech). 2019;:22-26.
doi:10.23919/SpliTech.2019.8783130 .

Bajc, Tamara, Milanović, Stefan, "Gender differences in environment evaluation for office building" in 2019 4th International Conference on Smart and Sustainable Technologies (Splitech) (2019):22-26,
https://doi.org/10.23919/SpliTech.2019.8783130 . .

TY  - THES
AU  - Mandić, Petar
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6908
UR  - https://nardus.mpn.gov.rs/handle/123456789/11514
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20244/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51652623
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/69
AB  - Predmet istraživanja ove doktorske disertacije jeste modelovanje i upravljanje mehaničkih sistema, sa posebnim akcentom na robotske sisteme tipa otvorenog kinematičkog lanca. Pri formiranju matematičkog modela robota korišćen je tzv. Rodrigov pristup, koji je posebno pogodan za primenu na računaru i automatsko formiranje diferencijalnih jednačina kretanja sistema. Za opisivanje disipativnih sila koje se javljaju u zglobovima robotskih segmenata pri kretanju sistema, uvodi se model trenja frakcionog tipa koji predstavlja generalizaciju standardnog modela...
AB  - The main research topics of this doctoral dissertation are modeling and control of mechanical systems, with special emphasis on robotic systems with open-chain structure. The so-called Rodriquez’s approach, which is well suited for usage on a computer and for automatic derivation of differential equations of motion, has been used for obtaining mathematical model of robot. In order to define more accurately dissipative forces occurring in robot joints when the system is in motion, a fractional order friction model, which represents a generalization of the standard model, has been introduced...
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Napredno modelovanje složenih robotskih sistema i mehanizama i primena modernih zakona upravljanja
T1  - Advanced modeling of complex robotic systems and mechanisms and applications of modern control theory
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11514
ER  - 

@phdthesis{
author = "Mandić, Petar",
year = "2019",
abstract = "Predmet istraživanja ove doktorske disertacije jeste modelovanje i upravljanje mehaničkih sistema, sa posebnim akcentom na robotske sisteme tipa otvorenog kinematičkog lanca. Pri formiranju matematičkog modela robota korišćen je tzv. Rodrigov pristup, koji je posebno pogodan za primenu na računaru i automatsko formiranje diferencijalnih jednačina kretanja sistema. Za opisivanje disipativnih sila koje se javljaju u zglobovima robotskih segmenata pri kretanju sistema, uvodi se model trenja frakcionog tipa koji predstavlja generalizaciju standardnog modela..., The main research topics of this doctoral dissertation are modeling and control of mechanical systems, with special emphasis on robotic systems with open-chain structure. The so-called Rodriquez’s approach, which is well suited for usage on a computer and for automatic derivation of differential equations of motion, has been used for obtaining mathematical model of robot. In order to define more accurately dissipative forces occurring in robot joints when the system is in motion, a fractional order friction model, which represents a generalization of the standard model, has been introduced...",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Napredno modelovanje složenih robotskih sistema i mehanizama i primena modernih zakona upravljanja, Advanced modeling of complex robotic systems and mechanisms and applications of modern control theory",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11514"
}

Mandić, P.. (2019). Napredno modelovanje složenih robotskih sistema i mehanizama i primena modernih zakona upravljanja. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_11514

Mandić P. Napredno modelovanje složenih robotskih sistema i mehanizama i primena modernih zakona upravljanja. 2019;.
https://hdl.handle.net/21.15107/rcub_nardus_11514 .

Mandić, Petar, "Napredno modelovanje složenih robotskih sistema i mehanizama i primena modernih zakona upravljanja" (2019),
https://hdl.handle.net/21.15107/rcub_nardus_11514 .

TY  - CONF
AU  - Matijević, Milan S.
AU  - Nedeljković, Miloš
AU  - Čantrak, Đorđe
AU  - Janković, Novica
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3222
AB  - This paper describes needs, possibilities, and implementation of open educational resources, which are supporting the problem-oriented engineering education based on realistic experimental results. Experimental results can partly substitute real experimentation which is necessary part of engineering education and research. Open educational resources and use of blended learning approach can improve relevancy and decrease costs of engineering education for the majority of engineering schools. These approaches include mobile learning concepts. Also, laboratories via the Internet are one way of sharing laboratory resources in order to increase the availability of experimental work. But there are many situations in which the use of Internet-mediated laboratories is nonrealistic. On the other hand, trained staff and hands-on laboratories and experimental installations are very limited resources at all engineering faculties in countries like Serbia. Because of that, the web portals for sharing experimental data (with defined experimental protocols and all relevant descriptions and tutorials) can be useful for mobile learning applications and engineering education and research.
PB  - Springer International Publishing Ag, Cham
C3  - Mobile Technologies and Applications For The Internet of Things
T1  - Problem-Oriented Learning Based on Use of Shared Experimental Results
EP  - 58
SP  - 47
VL  - 909
DO  - 10.1007/978-3-030-11434-3_9
ER  - 

@conference{
author = "Matijević, Milan S. and Nedeljković, Miloš and Čantrak, Đorđe and Janković, Novica",
year = "2019",
abstract = "This paper describes needs, possibilities, and implementation of open educational resources, which are supporting the problem-oriented engineering education based on realistic experimental results. Experimental results can partly substitute real experimentation which is necessary part of engineering education and research. Open educational resources and use of blended learning approach can improve relevancy and decrease costs of engineering education for the majority of engineering schools. These approaches include mobile learning concepts. Also, laboratories via the Internet are one way of sharing laboratory resources in order to increase the availability of experimental work. But there are many situations in which the use of Internet-mediated laboratories is nonrealistic. On the other hand, trained staff and hands-on laboratories and experimental installations are very limited resources at all engineering faculties in countries like Serbia. Because of that, the web portals for sharing experimental data (with defined experimental protocols and all relevant descriptions and tutorials) can be useful for mobile learning applications and engineering education and research.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Mobile Technologies and Applications For The Internet of Things",
title = "Problem-Oriented Learning Based on Use of Shared Experimental Results",
pages = "58-47",
volume = "909",
doi = "10.1007/978-3-030-11434-3_9"
}

Matijević, M. S., Nedeljković, M., Čantrak, Đ.,& Janković, N.. (2019). Problem-Oriented Learning Based on Use of Shared Experimental Results. in Mobile Technologies and Applications For The Internet of Things
Springer International Publishing Ag, Cham., 909, 47-58.
https://doi.org/10.1007/978-3-030-11434-3_9

Matijević MS, Nedeljković M, Čantrak Đ, Janković N. Problem-Oriented Learning Based on Use of Shared Experimental Results. in Mobile Technologies and Applications For The Internet of Things. 2019;909:47-58.
doi:10.1007/978-3-030-11434-3_9 .

Matijević, Milan S., Nedeljković, Miloš, Čantrak, Đorđe, Janković, Novica, "Problem-Oriented Learning Based on Use of Shared Experimental Results" in Mobile Technologies and Applications For The Internet of Things, 909 (2019):47-58,
https://doi.org/10.1007/978-3-030-11434-3_9 . .