Bakić, Vukman

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orcid::0000-0001-8003-438X
  • Bakić, Vukman (41)
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Author's Bibliography

Variability of carbon emission factors from lignite of the Kostolac basin in time

Živković, Nikola; Cvetinović, Dejan; Erić, Aleksandar; Bakić, Vukman; Škobalj, Predrag

(2023)

TY  - JOUR
AU  - Živković, Nikola
AU  - Cvetinović, Dejan
AU  - Erić, Aleksandar
AU  - Bakić, Vukman
AU  - Škobalj, Predrag
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12107
AB  - This paper presents experimental tests of lignite from the Kostolac open-pit mine, used to operate the boiler of the Kostolac B2 thermal power plant in 2022. Experimental tests were conducted to determine the emission characteristics and carbon emission factor and compare these values with those taken and determined in 2016. A total of 31 samples taken in April 2022 were tested. As with our previous work, the experimental methodology includes proximate analysis, ultimate analysis and determination of calorific value, for the 'as received', 'as determined' and dry basis. Corresponding correlations were established for the tested Kostolac lignite. The emission characteristics of the Kostolac lignite from 2022 were compared with the corresponding values from 2016. Certain changes in the values of the carbon emission factor over time are a regular phenomenon and therefore periodic sampling and experimental determinations are inevitable to follow the changes in the values. For this change in coal properties, new values for the carbon emission factor are proposed, which should be used to calculate the total carbon dioxide emissions in the last period.
T2  - Thermal Science
T1  - Variability of carbon emission factors from lignite of the Kostolac basin in time
VL  - 27
IS  - 6 Part B
SP  - 4911
EP  - 4917
DO  - 10.2298/TSCI230727243Z
ER  - 
@article{
author = "Živković, Nikola and Cvetinović, Dejan and Erić, Aleksandar and Bakić, Vukman and Škobalj, Predrag",
year = "2023",
abstract = "This paper presents experimental tests of lignite from the Kostolac open-pit mine, used to operate the boiler of the Kostolac B2 thermal power plant in 2022. Experimental tests were conducted to determine the emission characteristics and carbon emission factor and compare these values with those taken and determined in 2016. A total of 31 samples taken in April 2022 were tested. As with our previous work, the experimental methodology includes proximate analysis, ultimate analysis and determination of calorific value, for the 'as received', 'as determined' and dry basis. Corresponding correlations were established for the tested Kostolac lignite. The emission characteristics of the Kostolac lignite from 2022 were compared with the corresponding values from 2016. Certain changes in the values of the carbon emission factor over time are a regular phenomenon and therefore periodic sampling and experimental determinations are inevitable to follow the changes in the values. For this change in coal properties, new values for the carbon emission factor are proposed, which should be used to calculate the total carbon dioxide emissions in the last period.",
journal = "Thermal Science",
title = "Variability of carbon emission factors from lignite of the Kostolac basin in time",
volume = "27",
number = "6 Part B",
pages = "4911-4917",
doi = "10.2298/TSCI230727243Z"
}
Živković, N., Cvetinović, D., Erić, A., Bakić, V.,& Škobalj, P.. (2023). Variability of carbon emission factors from lignite of the Kostolac basin in time. in Thermal Science, 27(6 Part B), 4911-4917.
https://doi.org/10.2298/TSCI230727243Z
Živković N, Cvetinović D, Erić A, Bakić V, Škobalj P. Variability of carbon emission factors from lignite of the Kostolac basin in time. in Thermal Science. 2023;27(6 Part B):4911-4917.
doi:10.2298/TSCI230727243Z .
Živković, Nikola, Cvetinović, Dejan, Erić, Aleksandar, Bakić, Vukman, Škobalj, Predrag, "Variability of carbon emission factors from lignite of the Kostolac basin in time" in Thermal Science, 27, no. 6 Part B (2023):4911-4917,
https://doi.org/10.2298/TSCI230727243Z . .

Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin

Živković, Nikola; Cvetinović, Dejan; Bakić, Vukman; Erić, Aleksandar; Škobalj, Predrag

(Belgrade : Society of Thermal Engineers of Serbia, 2023)

TY  - CONF
AU  - Živković, Nikola
AU  - Cvetinović, Dejan
AU  - Bakić, Vukman
AU  - Erić, Aleksandar
AU  - Škobalj, Predrag
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12105
AB  - This paper presents the importance of the carbon emission factor, the need for its regular determination with the aim of calculating CO2 emissions as accurately as possible, and the monitoring of changes in the value of the emission factor and emissions. This is shown by the example of lignite from the open-pit mine “Kostolac”, which was sampled and experimentally investigated in order to determine the emission characteristics and compare them with the emission characteristics of lignite from the same open-pit mine from the previous year. At the Institute of Nuclear Sciences "Vinca", Laboratory for Thermal Engineering and Energy, an experimental and computational methodology was developed, including proximate analysis, ultimate analysis and the determination of the lower heating value. Based on laboratory tests, the necessary correlation dependencies were determined and a comparison of the values and the dependency curves of the emission factor on the lower heating value was carried out. When comparing the results, it was found that the emission factor changes for a certain value. If one takes into account other variables that are included in the calculation of the annual emission values, such as the consumption of lignite in the thermal power plant, certain small changes in the values of the emission factor are no longer so negligible and have a considerable influence on the difference in the amounts of CO2 emitted. For this reason, regular sampling and experimental determinations are essential to track the changes in emission factor values.
PB  - Belgrade : Society of Thermal Engineers of Serbia
C3  - International Conference Power Plants 2023 : Proceedings
T1  - Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin
SP  - 737
EP  - 747
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12105
ER  - 
@conference{
author = "Živković, Nikola and Cvetinović, Dejan and Bakić, Vukman and Erić, Aleksandar and Škobalj, Predrag",
year = "2023",
abstract = "This paper presents the importance of the carbon emission factor, the need for its regular determination with the aim of calculating CO2 emissions as accurately as possible, and the monitoring of changes in the value of the emission factor and emissions. This is shown by the example of lignite from the open-pit mine “Kostolac”, which was sampled and experimentally investigated in order to determine the emission characteristics and compare them with the emission characteristics of lignite from the same open-pit mine from the previous year. At the Institute of Nuclear Sciences "Vinca", Laboratory for Thermal Engineering and Energy, an experimental and computational methodology was developed, including proximate analysis, ultimate analysis and the determination of the lower heating value. Based on laboratory tests, the necessary correlation dependencies were determined and a comparison of the values and the dependency curves of the emission factor on the lower heating value was carried out. When comparing the results, it was found that the emission factor changes for a certain value. If one takes into account other variables that are included in the calculation of the annual emission values, such as the consumption of lignite in the thermal power plant, certain small changes in the values of the emission factor are no longer so negligible and have a considerable influence on the difference in the amounts of CO2 emitted. For this reason, regular sampling and experimental determinations are essential to track the changes in emission factor values.",
publisher = "Belgrade : Society of Thermal Engineers of Serbia",
journal = "International Conference Power Plants 2023 : Proceedings",
title = "Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin",
pages = "737-747",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12105"
}
Živković, N., Cvetinović, D., Bakić, V., Erić, A.,& Škobalj, P.. (2023). Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin. in International Conference Power Plants 2023 : Proceedings
Belgrade : Society of Thermal Engineers of Serbia., 737-747.
https://hdl.handle.net/21.15107/rcub_vinar_12105
Živković N, Cvetinović D, Bakić V, Erić A, Škobalj P. Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin. in International Conference Power Plants 2023 : Proceedings. 2023;:737-747.
https://hdl.handle.net/21.15107/rcub_vinar_12105 .
Živković, Nikola, Cvetinović, Dejan, Bakić, Vukman, Erić, Aleksandar, Škobalj, Predrag, "Significance and necessity of coal emission factor periodic determination - example of the lignite from Kostolac basin" in International Conference Power Plants 2023 : Proceedings (2023):737-747,
https://hdl.handle.net/21.15107/rcub_vinar_12105 .

Thermal Science

Bakić, Vukman; Oka, Simeon N.; Jovanović, Marina P.

(Belgrade : Vinča Institute of Nuclear Science, National Institute of the Republic of Serbia, University of Belgrade, 2023)

TY  - JOUR
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12222
PB  - Belgrade : Vinča Institute of Nuclear Science, National Institute of the Republic of Serbia, University of Belgrade
T2  - Thermal Science
T1  - Thermal Science
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12222
ER  - 
@article{
editor = "Bakić, Vukman, Oka, Simeon N., Jovanović, Marina P.",
year = "2023",
publisher = "Belgrade : Vinča Institute of Nuclear Science, National Institute of the Republic of Serbia, University of Belgrade",
journal = "Thermal Science",
title = "Thermal Science",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12222"
}
Bakić, V., Oka, S. N.,& Jovanović, M. P.. (2023). Thermal Science. in Thermal Science
Belgrade : Vinča Institute of Nuclear Science, National Institute of the Republic of Serbia, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_vinar_12222
Bakić V, Oka SN, Jovanović MP. Thermal Science. in Thermal Science. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12222 .
Bakić, Vukman, Oka, Simeon N., Jovanović, Marina P., "Thermal Science" in Thermal Science (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12222 .

Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050

Jovanović, Marina; Bakić, Vukman; Škobalj, Predrag; Cvetinović, Dejan; Erić, Aleksandar; Živković, Nikola V.; Duić, Neven

(2023)

TY  - JOUR
AU  - Jovanović, Marina
AU  - Bakić, Vukman
AU  - Škobalj, Predrag
AU  - Cvetinović, Dejan
AU  - Erić, Aleksandar
AU  - Živković, Nikola V.
AU  - Duić, Neven
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11981
AB  - By ratifying the Paris Agreement, the Republic of Serbia has committed to reduce greenhouse gas emissions by 13.2% by 2030 compared to the 2010 levels. About 70% of electricity is generated in thermal power plants that use low-quality domestic lignite as fuel. Greenhouse gas emissions from electricity generation amounted to 51.5 Mt CO2eq in 2014. The Republic of Serbia has a significant renewable energy source (RES) potential for electricity generation. This research aims to define sustainable scenarios for the years 2030 and 2050 in the transition process of the electricity generation sector in the Republic of Serbia. These scenarios provide an opportunity to gradually reduce CO2 emissions by 2050, with the goal of zero-emission electricity generation in 2050. The scenarios were created using the hourly electricity balance of the Serbian power system in the EnergyPLAN software, with 2010 as the base year for the calculations. The proposed scenarios promote the sustainable use of RES for electricity generation in the Republic of Serbia. The results show a reduction in CO2 emissions of 35% and 59% in 2030 for the scenarios and 66% and 100% in 2050 compared to the reference year 2010.
T2  - Utilities Policy
T1  - Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050
VL  - 85
SP  - 101681
DO  - 10.1016/j.jup.2023.101681
ER  - 
@article{
author = "Jovanović, Marina and Bakić, Vukman and Škobalj, Predrag and Cvetinović, Dejan and Erić, Aleksandar and Živković, Nikola V. and Duić, Neven",
year = "2023",
abstract = "By ratifying the Paris Agreement, the Republic of Serbia has committed to reduce greenhouse gas emissions by 13.2% by 2030 compared to the 2010 levels. About 70% of electricity is generated in thermal power plants that use low-quality domestic lignite as fuel. Greenhouse gas emissions from electricity generation amounted to 51.5 Mt CO2eq in 2014. The Republic of Serbia has a significant renewable energy source (RES) potential for electricity generation. This research aims to define sustainable scenarios for the years 2030 and 2050 in the transition process of the electricity generation sector in the Republic of Serbia. These scenarios provide an opportunity to gradually reduce CO2 emissions by 2050, with the goal of zero-emission electricity generation in 2050. The scenarios were created using the hourly electricity balance of the Serbian power system in the EnergyPLAN software, with 2010 as the base year for the calculations. The proposed scenarios promote the sustainable use of RES for electricity generation in the Republic of Serbia. The results show a reduction in CO2 emissions of 35% and 59% in 2030 for the scenarios and 66% and 100% in 2050 compared to the reference year 2010.",
journal = "Utilities Policy",
title = "Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050",
volume = "85",
pages = "101681",
doi = "10.1016/j.jup.2023.101681"
}
Jovanović, M., Bakić, V., Škobalj, P., Cvetinović, D., Erić, A., Živković, N. V.,& Duić, N.. (2023). Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050. in Utilities Policy, 85, 101681.
https://doi.org/10.1016/j.jup.2023.101681
Jovanović M, Bakić V, Škobalj P, Cvetinović D, Erić A, Živković NV, Duić N. Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050. in Utilities Policy. 2023;85:101681.
doi:10.1016/j.jup.2023.101681 .
Jovanović, Marina, Bakić, Vukman, Škobalj, Predrag, Cvetinović, Dejan, Erić, Aleksandar, Živković, Nikola V., Duić, Neven, "Scenarios for transitioning the electricity sector of the Republic of Serbia to sustainable climate neutrality by 2050" in Utilities Policy, 85 (2023):101681,
https://doi.org/10.1016/j.jup.2023.101681 . .

Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling

Cvetinović, Dejan; Milutinović, Nada; Erić, Aleksandar; Škobalj, Predrag D.; Anđelković, Jovana; Bakić, Vukman

(2023)

TY  - JOUR
AU  - Cvetinović, Dejan
AU  - Milutinović, Nada
AU  - Erić, Aleksandar
AU  - Škobalj, Predrag D.
AU  - Anđelković, Jovana
AU  - Bakić, Vukman
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11352
AB  - This paper proposes a mathematical modelling approach to determine the thermodynamic equilibrium of chemical systems in order to optimise the operating parameters of the plasma chemical processes in a lowtemperature thermal plasma pilot reactor with a direct current electric arc for the treatment of hazardous waste containing polychlorinated biphenyls. The model is primarily based on the principles of mass action and minimum Gibbs free energy. The obtained results can serve as a basis for multi-criteria optimisation based on ecological aspects, reduction of energy consumption and the possibility of using the produced synthetic gas for energy recovery in the process. The analysis carried out clearly showed the advantages of using water vapour as a plasma working medium and the appropriate mixing of the organic waste containing polychlorinated biphenyls with used engine oil for enriched syngas production. The presented analysis determines the optimal reactor temperature for an ecologically efficient treatment and shows possibilities for energy recovery in the process. The proposed model can also be used for other chemical reactors and for the treatment of other chemical substances
T2  - Energy Conversion and Management
T1  - Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling
VL  - 292
SP  - 117358
DO  - 10.1016/j.enconman.2023.117358
ER  - 
@article{
author = "Cvetinović, Dejan and Milutinović, Nada and Erić, Aleksandar and Škobalj, Predrag D. and Anđelković, Jovana and Bakić, Vukman",
year = "2023",
abstract = "This paper proposes a mathematical modelling approach to determine the thermodynamic equilibrium of chemical systems in order to optimise the operating parameters of the plasma chemical processes in a lowtemperature thermal plasma pilot reactor with a direct current electric arc for the treatment of hazardous waste containing polychlorinated biphenyls. The model is primarily based on the principles of mass action and minimum Gibbs free energy. The obtained results can serve as a basis for multi-criteria optimisation based on ecological aspects, reduction of energy consumption and the possibility of using the produced synthetic gas for energy recovery in the process. The analysis carried out clearly showed the advantages of using water vapour as a plasma working medium and the appropriate mixing of the organic waste containing polychlorinated biphenyls with used engine oil for enriched syngas production. The presented analysis determines the optimal reactor temperature for an ecologically efficient treatment and shows possibilities for energy recovery in the process. The proposed model can also be used for other chemical reactors and for the treatment of other chemical substances",
journal = "Energy Conversion and Management",
title = "Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling",
volume = "292",
pages = "117358",
doi = "10.1016/j.enconman.2023.117358"
}
Cvetinović, D., Milutinović, N., Erić, A., Škobalj, P. D., Anđelković, J.,& Bakić, V.. (2023). Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling. in Energy Conversion and Management, 292, 117358.
https://doi.org/10.1016/j.enconman.2023.117358
Cvetinović D, Milutinović N, Erić A, Škobalj PD, Anđelković J, Bakić V. Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling. in Energy Conversion and Management. 2023;292:117358.
doi:10.1016/j.enconman.2023.117358 .
Cvetinović, Dejan, Milutinović, Nada, Erić, Aleksandar, Škobalj, Predrag D., Anđelković, Jovana, Bakić, Vukman, "Optimisation of the operating parameters of a thermal plasma system for the conversion of waste containing polychlorinated biphenyls by thermodynamic modelling" in Energy Conversion and Management, 292 (2023):117358,
https://doi.org/10.1016/j.enconman.2023.117358 . .
3
2

Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling

Cvetinović, Dejan; Milutinović, Nada; Erić, Aleksandar; Manić, Nebojša; Bakić, Vukman; Janković, Bojan

(SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, 2023)

TY  - CONF
AU  - Cvetinović, Dejan
AU  - Milutinović, Nada
AU  - Erić, Aleksandar
AU  - Manić, Nebojša
AU  - Bakić, Vukman
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12613
AB  - The aim of the article is to show the effects of the main gasifier operating parameters, such as temperature, equivalence ratio, steam-to-fuel ratio, and gasification medium selection, on the gasification performance of sewage sludge. Using the developed one-dimensional mathematical thermodynamic equilibrium model for plasma and fluidized bed gasification, a comprehensive parametric study is established. The model is based on the principle of the minimum of the Gibbs function and uses only the ultimate and proximate analysis data as input to the model. The output of the model gives the equilibrium composition of the gasses produced. When comparing different gasification media, gasification with water steam gives a higher yield of H2 and CO in the syngas produced. Further comparison of the two gasification processes in terms of energy consumption is shown. The collected results can be useful in further analysis of the gasification processes, such as energy and exergy analysis and kinetics.
PB  - SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
T1  - Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12613
ER  - 
@conference{
author = "Cvetinović, Dejan and Milutinović, Nada and Erić, Aleksandar and Manić, Nebojša and Bakić, Vukman and Janković, Bojan",
year = "2023",
abstract = "The aim of the article is to show the effects of the main gasifier operating parameters, such as temperature, equivalence ratio, steam-to-fuel ratio, and gasification medium selection, on the gasification performance of sewage sludge. Using the developed one-dimensional mathematical thermodynamic equilibrium model for plasma and fluidized bed gasification, a comprehensive parametric study is established. The model is based on the principle of the minimum of the Gibbs function and uses only the ultimate and proximate analysis data as input to the model. The output of the model gives the equilibrium composition of the gasses produced. When comparing different gasification media, gasification with water steam gives a higher yield of H2 and CO in the syngas produced. Further comparison of the two gasification processes in terms of energy consumption is shown. The collected results can be useful in further analysis of the gasification processes, such as energy and exergy analysis and kinetics.",
publisher = "SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings",
title = "Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12613"
}
Cvetinović, D., Milutinović, N., Erić, A., Manić, N., Bakić, V.,& Janković, B.. (2023). Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems..
https://hdl.handle.net/21.15107/rcub_vinar_12613
Cvetinović D, Milutinović N, Erić A, Manić N, Bakić V, Janković B. Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12613 .
Cvetinović, Dejan, Milutinović, Nada, Erić, Aleksandar, Manić, Nebojša, Bakić, Vukman, Janković, Bojan, "Gasification of Sewage Sludge: Thermodynamic Equilibrium Modeling" in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12613 .

Mitigation of urban particulate pollution using lightweight green roof system

Kostadinović, Danka; Jovanović, Marina; Bakić, Vukman; Stepanić, Nenad

(2023)

TY  - JOUR
AU  - Kostadinović, Danka
AU  - Jovanović, Marina
AU  - Bakić, Vukman
AU  - Stepanić, Nenad
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11097
AB  - As the global population becomes more concentrated in urban environments, higher numbers of people will be exposed to urban air pollution. The environmental and human health benefits of green roofs are widely recognized. The aim of this paper is to promote green roofs as an effective passive technique for pollution mitigation and adaptation to climate change. During the heating season, the ambient concentrations of PM1, PM2.5, and PM10 were measured above a green roof and a reference roof on a school building, located in New Belgrade, the second-most populous municipality and business center of Serbia’s largest city. The percent reduction of PM10, PM2.5 and PM1, in January 2020, above the green roof compared to the reference roof was 7%, 16.6%, and 17.6%, respectively. The results show that lightweight green roof improve air quality in terms of PM concentrations for all months considered. In this paper, correlation analysis and the use of Pearson’s coefficient were used in the process of analysis to determine the relationship between PM10, PM2.5, PM1, and ambient parameters: relative humidity, ambient temperature, and wind speed. It was found that the statistical correlation expressed by the Pearson coefficient between all PM particles and wind speed was statistically significant in all observed months except September. Also, the degree of significance of the correlation between PM particles and humidity and temperature of ambient air varies by month.
T2  - Energy and Buildings
T1  - Mitigation of urban particulate pollution using lightweight green roof system
VL  - 293
SP  - 113203
DO  - 10.1016/j.enbuild.2023.113203
ER  - 
@article{
author = "Kostadinović, Danka and Jovanović, Marina and Bakić, Vukman and Stepanić, Nenad",
year = "2023",
abstract = "As the global population becomes more concentrated in urban environments, higher numbers of people will be exposed to urban air pollution. The environmental and human health benefits of green roofs are widely recognized. The aim of this paper is to promote green roofs as an effective passive technique for pollution mitigation and adaptation to climate change. During the heating season, the ambient concentrations of PM1, PM2.5, and PM10 were measured above a green roof and a reference roof on a school building, located in New Belgrade, the second-most populous municipality and business center of Serbia’s largest city. The percent reduction of PM10, PM2.5 and PM1, in January 2020, above the green roof compared to the reference roof was 7%, 16.6%, and 17.6%, respectively. The results show that lightweight green roof improve air quality in terms of PM concentrations for all months considered. In this paper, correlation analysis and the use of Pearson’s coefficient were used in the process of analysis to determine the relationship between PM10, PM2.5, PM1, and ambient parameters: relative humidity, ambient temperature, and wind speed. It was found that the statistical correlation expressed by the Pearson coefficient between all PM particles and wind speed was statistically significant in all observed months except September. Also, the degree of significance of the correlation between PM particles and humidity and temperature of ambient air varies by month.",
journal = "Energy and Buildings",
title = "Mitigation of urban particulate pollution using lightweight green roof system",
volume = "293",
pages = "113203",
doi = "10.1016/j.enbuild.2023.113203"
}
Kostadinović, D., Jovanović, M., Bakić, V.,& Stepanić, N.. (2023). Mitigation of urban particulate pollution using lightweight green roof system. in Energy and Buildings, 293, 113203.
https://doi.org/10.1016/j.enbuild.2023.113203
Kostadinović D, Jovanović M, Bakić V, Stepanić N. Mitigation of urban particulate pollution using lightweight green roof system. in Energy and Buildings. 2023;293:113203.
doi:10.1016/j.enbuild.2023.113203 .
Kostadinović, Danka, Jovanović, Marina, Bakić, Vukman, Stepanić, Nenad, "Mitigation of urban particulate pollution using lightweight green roof system" in Energy and Buildings, 293 (2023):113203,
https://doi.org/10.1016/j.enbuild.2023.113203 . .
1
6
3

Determination of the drag coefficient of lattice structures under wind load using porous media approach

Pezo, Milada L.; Mirkov, Nikola S.; Bakić, Vukman

(2022)

TY  - JOUR
AU  - Pezo, Milada L.
AU  - Mirkov, Nikola S.
AU  - Bakić, Vukman
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10176
AB  - The power transmitters, guyed masts and other lattice structures are exposed to wind action. The aerodynamic forces acting on tall tower constructions have crucial importance on the stability of the structure. The lattice structure drag coefficient determination is the subject of the international standards ESDU 81027 and 81028 and Eurocode 3 Part 3.1, but it can also be determined by numerical methods. For that purpose modelling using CFD proved to be both accurate and reliable. In this study the fluid-flow around the segment of a power transmitter was simulated by a 3-D model, where the geometry of the segment is approximated with a porous structure having the appropriate factor of porosity, in order to simplify the geometry. We have used three representative models of turbulence, standard k-? model, RNG k-? model, and Reynolds stress model. Drag coefficient values are extracted from the flow field and compared for all studied cases and with available experimental results from the wind tunnel. Simulations were performed for four wind velocities between 10 m/s and 30 m/s. The results are supplemented by the ones obtained by artificial neural network. The aim of this study is to show how the simple turbulence model coupled with approximated geometry can be used in the analysis of the aerodynamic forces acting on the lattice structure.
T2  - Thermal Science
T1  - Determination of the drag coefficient of lattice structures under wind load using porous media approach
VL  - 26
IS  - 1 Part A
SP  - 309
EP  - 317
DO  - 10.2298/TSCI210511233P
ER  - 
@article{
author = "Pezo, Milada L. and Mirkov, Nikola S. and Bakić, Vukman",
year = "2022",
abstract = "The power transmitters, guyed masts and other lattice structures are exposed to wind action. The aerodynamic forces acting on tall tower constructions have crucial importance on the stability of the structure. The lattice structure drag coefficient determination is the subject of the international standards ESDU 81027 and 81028 and Eurocode 3 Part 3.1, but it can also be determined by numerical methods. For that purpose modelling using CFD proved to be both accurate and reliable. In this study the fluid-flow around the segment of a power transmitter was simulated by a 3-D model, where the geometry of the segment is approximated with a porous structure having the appropriate factor of porosity, in order to simplify the geometry. We have used three representative models of turbulence, standard k-? model, RNG k-? model, and Reynolds stress model. Drag coefficient values are extracted from the flow field and compared for all studied cases and with available experimental results from the wind tunnel. Simulations were performed for four wind velocities between 10 m/s and 30 m/s. The results are supplemented by the ones obtained by artificial neural network. The aim of this study is to show how the simple turbulence model coupled with approximated geometry can be used in the analysis of the aerodynamic forces acting on the lattice structure.",
journal = "Thermal Science",
title = "Determination of the drag coefficient of lattice structures under wind load using porous media approach",
volume = "26",
number = "1 Part A",
pages = "309-317",
doi = "10.2298/TSCI210511233P"
}
Pezo, M. L., Mirkov, N. S.,& Bakić, V.. (2022). Determination of the drag coefficient of lattice structures under wind load using porous media approach. in Thermal Science, 26(1 Part A), 309-317.
https://doi.org/10.2298/TSCI210511233P
Pezo ML, Mirkov NS, Bakić V. Determination of the drag coefficient of lattice structures under wind load using porous media approach. in Thermal Science. 2022;26(1 Part A):309-317.
doi:10.2298/TSCI210511233P .
Pezo, Milada L., Mirkov, Nikola S., Bakić, Vukman, "Determination of the drag coefficient of lattice structures under wind load using porous media approach" in Thermal Science, 26, no. 1 Part A (2022):309-317,
https://doi.org/10.2298/TSCI210511233P . .
2
2

Carbon Emission Factor of Balkan Lignites

Cvetinović, Dejan; Živković, Nikola; Erić, Aleksandar; Milutinović, Nada; Bakić, Vukman

(2022)

TY  - CONF
AU  - Cvetinović, Dejan
AU  - Živković, Nikola
AU  - Erić, Aleksandar
AU  - Milutinović, Nada
AU  - Bakić, Vukman
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12113
AB  - The paper presents the results of lignite Carbon Emission Factor (CEF) determination originating from the Balkan Peninsula, namely Greek and lignites from Turkey, Bosnia and Herzegovina, Serbia, and Montenegro. For the experimental investigation, samples were considered based on as received, as determined, and on a dry basis. The experimental analysis included ultimate, proximate analysis, and heat value determination, according to applicable standards. Based on the results of experimental investigation, the following correlations have been established for all considered lignites: total carbon content on combustible matter content, total hydrogen content on combustible matter content, total carbon content on heat value, and correlation of CEF on lignite heat value. Finally, comparisons of different lignite characteristics were performed, and appropriate conclusions on their emission characteristics are given. Presented results can serve as a base for the determination of unique emission factors for each lignite to be used for precise emission mitigation measures planning in the Balkan region.
C3  - SEE2022 : 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts
T1  - Carbon Emission Factor of Balkan Lignites
SP  - 117
EP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12113
ER  - 
@conference{
author = "Cvetinović, Dejan and Živković, Nikola and Erić, Aleksandar and Milutinović, Nada and Bakić, Vukman",
year = "2022",
abstract = "The paper presents the results of lignite Carbon Emission Factor (CEF) determination originating from the Balkan Peninsula, namely Greek and lignites from Turkey, Bosnia and Herzegovina, Serbia, and Montenegro. For the experimental investigation, samples were considered based on as received, as determined, and on a dry basis. The experimental analysis included ultimate, proximate analysis, and heat value determination, according to applicable standards. Based on the results of experimental investigation, the following correlations have been established for all considered lignites: total carbon content on combustible matter content, total hydrogen content on combustible matter content, total carbon content on heat value, and correlation of CEF on lignite heat value. Finally, comparisons of different lignite characteristics were performed, and appropriate conclusions on their emission characteristics are given. Presented results can serve as a base for the determination of unique emission factors for each lignite to be used for precise emission mitigation measures planning in the Balkan region.",
journal = "SEE2022 : 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts",
title = "Carbon Emission Factor of Balkan Lignites",
pages = "117-117",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12113"
}
Cvetinović, D., Živković, N., Erić, A., Milutinović, N.,& Bakić, V.. (2022). Carbon Emission Factor of Balkan Lignites. in SEE2022 : 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts, 117-117.
https://hdl.handle.net/21.15107/rcub_vinar_12113
Cvetinović D, Živković N, Erić A, Milutinović N, Bakić V. Carbon Emission Factor of Balkan Lignites. in SEE2022 : 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts. 2022;:117-117.
https://hdl.handle.net/21.15107/rcub_vinar_12113 .
Cvetinović, Dejan, Živković, Nikola, Erić, Aleksandar, Milutinović, Nada, Bakić, Vukman, "Carbon Emission Factor of Balkan Lignites" in SEE2022 : 5th South East European Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts (2022):117-117,
https://hdl.handle.net/21.15107/rcub_vinar_12113 .

Combined parametric modelling of biomass devolatilisation process

Erić, Aleksandar; Cvetinović, Dejan; Milutinović, Nada; Škobalj, Predrag D.; Bakić, Vukman

(2022)

TY  - JOUR
AU  - Erić, Aleksandar
AU  - Cvetinović, Dejan
AU  - Milutinović, Nada
AU  - Škobalj, Predrag D.
AU  - Bakić, Vukman
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10266
AB  - Devolatilisation is a process of volatile components formation that takes place immediately after the drying process and precedes combustion or gasification. The paper presents the procedure for determining the composition of devolatilisation products on the wheat residue biomass sample. The components considered devolatilisation products are carbon monoxide, carbon dioxide, hydrogen, water vapor, hydrogen sulfide, ammonia, ethene, methane, and tar. The procedure relies on two independent models that adopt two distinct principles. The first model of energy and mass balance does not consider the analysis of the influence of temperature, and therefore the system is indeterminate. The second model that involves the temperature influence is based on defining the equilibrium composition of gaseous components of the devolatilisation process by applying the principle of minimum Gibbs function. This model gives the gas-phase composition of the water/carbon dioxide, carbon monoxide/carbon dioxide, and hydrocarbons/carbon dioxide systems. Combining these two models using an iterative procedure leads to an exact composition of the devolatilisation products, including tar as a condensed product. The analysis was performed in the temperature range of 700–950 K. The model is validated against already published numerical and experimental work and presented a high level of agreement. The main advantage of the proposed combined parametric modelling relies on the simplicity of its input data which refers to the proximate and the ultimate analysis of the biomass feedstock.
T2  - Renewable Energy
T1  - Combined parametric modelling of biomass devolatilisation process
VL  - 193
SP  - 13
EP  - 22
DO  - 10.1016/j.renene.2022.04.129
ER  - 
@article{
author = "Erić, Aleksandar and Cvetinović, Dejan and Milutinović, Nada and Škobalj, Predrag D. and Bakić, Vukman",
year = "2022",
abstract = "Devolatilisation is a process of volatile components formation that takes place immediately after the drying process and precedes combustion or gasification. The paper presents the procedure for determining the composition of devolatilisation products on the wheat residue biomass sample. The components considered devolatilisation products are carbon monoxide, carbon dioxide, hydrogen, water vapor, hydrogen sulfide, ammonia, ethene, methane, and tar. The procedure relies on two independent models that adopt two distinct principles. The first model of energy and mass balance does not consider the analysis of the influence of temperature, and therefore the system is indeterminate. The second model that involves the temperature influence is based on defining the equilibrium composition of gaseous components of the devolatilisation process by applying the principle of minimum Gibbs function. This model gives the gas-phase composition of the water/carbon dioxide, carbon monoxide/carbon dioxide, and hydrocarbons/carbon dioxide systems. Combining these two models using an iterative procedure leads to an exact composition of the devolatilisation products, including tar as a condensed product. The analysis was performed in the temperature range of 700–950 K. The model is validated against already published numerical and experimental work and presented a high level of agreement. The main advantage of the proposed combined parametric modelling relies on the simplicity of its input data which refers to the proximate and the ultimate analysis of the biomass feedstock.",
journal = "Renewable Energy",
title = "Combined parametric modelling of biomass devolatilisation process",
volume = "193",
pages = "13-22",
doi = "10.1016/j.renene.2022.04.129"
}
Erić, A., Cvetinović, D., Milutinović, N., Škobalj, P. D.,& Bakić, V.. (2022). Combined parametric modelling of biomass devolatilisation process. in Renewable Energy, 193, 13-22.
https://doi.org/10.1016/j.renene.2022.04.129
Erić A, Cvetinović D, Milutinović N, Škobalj PD, Bakić V. Combined parametric modelling of biomass devolatilisation process. in Renewable Energy. 2022;193:13-22.
doi:10.1016/j.renene.2022.04.129 .
Erić, Aleksandar, Cvetinović, Dejan, Milutinović, Nada, Škobalj, Predrag D., Bakić, Vukman, "Combined parametric modelling of biomass devolatilisation process" in Renewable Energy, 193 (2022):13-22,
https://doi.org/10.1016/j.renene.2022.04.129 . .
4
4

Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate

Kostadinović, Danka; Jovanović, Marina P.; Bakić, Vukman; Stepanić, Nenad; Todorović, Maja

(2022)

TY  - JOUR
AU  - Kostadinović, Danka
AU  - Jovanović, Marina P.
AU  - Bakić, Vukman
AU  - Stepanić, Nenad
AU  - Todorović, Maja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10231
AB  - Green roof systems have become an important part in creating sustainable cities. They can provide a wide range of economic, environmental, and social benefits. The goal of this research was to quantify the thermal performance improvements from a green roof with mineral wool substrate installed on a school building in a humid subtropical climate. In-situ measurements during a summer period included heat fluxes through the green and reference roof, vertical temperature profile through both roofs, the local air temperature above roofs, and local meteorological parameters. Furthermore, the summer thermal performance of green and reference roof and the green roof cooling effect were evaluated concerning meteorological parameters using the Pearson correlation analysis. The results indicate that the green roof layers have improved thermal performance of the roof with respect to reduced conductive heat flow by 57% and delayed heat transfer. The maximum and averaged reference roof to green roof outdoor surface temperature difference was 27.5 °C and 5.5 °C, respectively. It was found that ambient temperature and relative humidity have a dominant role on the thermal performance of the green and reference roof, while solar radiation and ambient temperature present the key meteorological determinants of the green roof cooling effect.
T2  - Building and Environment
T1  - Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate
VL  - 217
SP  - 109061
DO  - 10.1016/j.buildenv.2022.109061
ER  - 
@article{
author = "Kostadinović, Danka and Jovanović, Marina P. and Bakić, Vukman and Stepanić, Nenad and Todorović, Maja",
year = "2022",
abstract = "Green roof systems have become an important part in creating sustainable cities. They can provide a wide range of economic, environmental, and social benefits. The goal of this research was to quantify the thermal performance improvements from a green roof with mineral wool substrate installed on a school building in a humid subtropical climate. In-situ measurements during a summer period included heat fluxes through the green and reference roof, vertical temperature profile through both roofs, the local air temperature above roofs, and local meteorological parameters. Furthermore, the summer thermal performance of green and reference roof and the green roof cooling effect were evaluated concerning meteorological parameters using the Pearson correlation analysis. The results indicate that the green roof layers have improved thermal performance of the roof with respect to reduced conductive heat flow by 57% and delayed heat transfer. The maximum and averaged reference roof to green roof outdoor surface temperature difference was 27.5 °C and 5.5 °C, respectively. It was found that ambient temperature and relative humidity have a dominant role on the thermal performance of the green and reference roof, while solar radiation and ambient temperature present the key meteorological determinants of the green roof cooling effect.",
journal = "Building and Environment",
title = "Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate",
volume = "217",
pages = "109061",
doi = "10.1016/j.buildenv.2022.109061"
}
Kostadinović, D., Jovanović, M. P., Bakić, V., Stepanić, N.,& Todorović, M.. (2022). Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate. in Building and Environment, 217, 109061.
https://doi.org/10.1016/j.buildenv.2022.109061
Kostadinović D, Jovanović MP, Bakić V, Stepanić N, Todorović M. Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate. in Building and Environment. 2022;217:109061.
doi:10.1016/j.buildenv.2022.109061 .
Kostadinović, Danka, Jovanović, Marina P., Bakić, Vukman, Stepanić, Nenad, Todorović, Maja, "Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate" in Building and Environment, 217 (2022):109061,
https://doi.org/10.1016/j.buildenv.2022.109061 . .
11
7

Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic

Vučićević, Biljana S.; Živković, Marija M.; Turanjanin, Valentina; Bakić, Vukman; Jovanović, M.

(Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences, 2021)

TY  - CONF
AU  - Vučićević, Biljana S.
AU  - Živković, Marija M.
AU  - Turanjanin, Valentina
AU  - Bakić, Vukman
AU  - Jovanović, M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10998
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10998
ER  - 
@conference{
author = "Vučićević, Biljana S. and Živković, Marija M. and Turanjanin, Valentina and Bakić, Vukman and Jovanović, M.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic",
pages = "79",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10998"
}
Vučićević, B. S., Živković, M. M., Turanjanin, V., Bakić, V.,& Jovanović, M.. (2021). Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 79.
https://hdl.handle.net/21.15107/rcub_vinar_10998
Vučićević BS, Živković MM, Turanjanin V, Bakić V, Jovanović M. Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:79.
https://hdl.handle.net/21.15107/rcub_vinar_10998 .
Vučićević, Biljana S., Živković, Marija M., Turanjanin, Valentina, Bakić, Vukman, Jovanović, M., "Lock-Down Influence on Air Quality in Belgrade During COVID–19 Pandemic" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):79,
https://hdl.handle.net/21.15107/rcub_vinar_10998 .

Experimental validation of wind energy estimation

Živković, Predrag; Tomić, Mladen; Bakić, Vukman

(2020)

TY  - JOUR
AU  - Živković, Predrag
AU  - Tomić, Mladen
AU  - Bakić, Vukman
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9183
AB  - Wind power assessment in complex terrain is a very demanding task. Modeling wind conditions with standard linear models does not sufficiently reproduce wind conditions in complex terrains, especially on leeward sides of terrain slopes, primarily due to the vorticity. A more complex non-linear model, based on Reynolds averaged Navier-Stokes equations has been used. Turbulence was modeled by modified two-equations k-? model for neutral atmospheric boundary-layer conditions, written in general curvelinear non-orthogonal co-ordinate system. The full set of mass and momentum conservation equations as well as turbulence model equations are numerically solved, using the as CFD technique. A comparison of the application of linear model and non-linear model is presented. Considerable discrepancies of estimated wind speed have been obtained using linear and non-linear models. Statistics of annual electricity production vary up to 30% of the model site. Even anemometer measurements directly at a wind turbine?s site do not necessarily deliver the results needed for prediction calculations, as extrapolations of wind speed to hub height is tricky. The results of the simulation are compared by means of the turbine type, quality and quantity of the wind data and capacity factor. Finally, the comparison of the estimated results with the measured data at 10, 30, and 50 m is shown.
T2  - Thermal Science
T1  - Experimental validation of wind energy estimation
VL  - 24
IS  - 6 Part A
SP  - 3795
EP  - 3806
DO  - 10.2298/TSCI191207474Z
ER  - 
@article{
author = "Živković, Predrag and Tomić, Mladen and Bakić, Vukman",
year = "2020",
abstract = "Wind power assessment in complex terrain is a very demanding task. Modeling wind conditions with standard linear models does not sufficiently reproduce wind conditions in complex terrains, especially on leeward sides of terrain slopes, primarily due to the vorticity. A more complex non-linear model, based on Reynolds averaged Navier-Stokes equations has been used. Turbulence was modeled by modified two-equations k-? model for neutral atmospheric boundary-layer conditions, written in general curvelinear non-orthogonal co-ordinate system. The full set of mass and momentum conservation equations as well as turbulence model equations are numerically solved, using the as CFD technique. A comparison of the application of linear model and non-linear model is presented. Considerable discrepancies of estimated wind speed have been obtained using linear and non-linear models. Statistics of annual electricity production vary up to 30% of the model site. Even anemometer measurements directly at a wind turbine?s site do not necessarily deliver the results needed for prediction calculations, as extrapolations of wind speed to hub height is tricky. The results of the simulation are compared by means of the turbine type, quality and quantity of the wind data and capacity factor. Finally, the comparison of the estimated results with the measured data at 10, 30, and 50 m is shown.",
journal = "Thermal Science",
title = "Experimental validation of wind energy estimation",
volume = "24",
number = "6 Part A",
pages = "3795-3806",
doi = "10.2298/TSCI191207474Z"
}
Živković, P., Tomić, M.,& Bakić, V.. (2020). Experimental validation of wind energy estimation. in Thermal Science, 24(6 Part A), 3795-3806.
https://doi.org/10.2298/TSCI191207474Z
Živković P, Tomić M, Bakić V. Experimental validation of wind energy estimation. in Thermal Science. 2020;24(6 Part A):3795-3806.
doi:10.2298/TSCI191207474Z .
Živković, Predrag, Tomić, Mladen, Bakić, Vukman, "Experimental validation of wind energy estimation" in Thermal Science, 24, no. 6 Part A (2020):3795-3806,
https://doi.org/10.2298/TSCI191207474Z . .

Estimation of Power Production of Wind Potential

Stevanović, Žana; Tomić, Mladen; Bakić, Vukman; Živković, Predrag

(Zagreb, Croatia : Faculty of Mechanical Engineering and Naval Architecture, 2019)

TY  - CONF
AU  - Stevanović, Žana
AU  - Tomić, Mladen
AU  - Bakić, Vukman
AU  - Živković, Predrag
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12778
AB  - Estimating the wind potential for a particular micro location (siting) involves detailed analysis of the possibility of annual electricity production at that location. Based on the assumption of installed capacity, area and number of hours constant load, it is possible to obtain annual theoretical production of electricity according to expression . The wind atlas for target location contains data onto 5 reference roughness lengths (0.000 m , 0.030 m , 0.100 m , 0.400 m , 1.500 m ) and 5 reference heights (10 m , 25 m , 50 m , 100 m , 200 m ) above ground level . This paer have measured data onto site at target location, and base of that there was modeled digital model of location and wind power model for elevation at 110m. There was estimation of 20 GE (2,78 MW) instaling capacity for target location.
PB  - Zagreb, Croatia : Faculty of Mechanical Engineering and Naval Architecture
C3  - SDEWES : 14th Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts
T1  - Estimation of Power Production of Wind Potential
SP  - 417
EP  - 417
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12778
ER  - 
@conference{
author = "Stevanović, Žana and Tomić, Mladen and Bakić, Vukman and Živković, Predrag",
year = "2019",
abstract = "Estimating the wind potential for a particular micro location (siting) involves detailed analysis of the possibility of annual electricity production at that location. Based on the assumption of installed capacity, area and number of hours constant load, it is possible to obtain annual theoretical production of electricity according to expression . The wind atlas for target location contains data onto 5 reference roughness lengths (0.000 m , 0.030 m , 0.100 m , 0.400 m , 1.500 m ) and 5 reference heights (10 m , 25 m , 50 m , 100 m , 200 m ) above ground level . This paer have measured data onto site at target location, and base of that there was modeled digital model of location and wind power model for elevation at 110m. There was estimation of 20 GE (2,78 MW) instaling capacity for target location.",
publisher = "Zagreb, Croatia : Faculty of Mechanical Engineering and Naval Architecture",
journal = "SDEWES : 14th Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts",
title = "Estimation of Power Production of Wind Potential",
pages = "417-417",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12778"
}
Stevanović, Ž., Tomić, M., Bakić, V.,& Živković, P.. (2019). Estimation of Power Production of Wind Potential. in SDEWES : 14th Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts
Zagreb, Croatia : Faculty of Mechanical Engineering and Naval Architecture., 417-417.
https://hdl.handle.net/21.15107/rcub_vinar_12778
Stevanović Ž, Tomić M, Bakić V, Živković P. Estimation of Power Production of Wind Potential. in SDEWES : 14th Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts. 2019;:417-417.
https://hdl.handle.net/21.15107/rcub_vinar_12778 .
Stevanović, Žana, Tomić, Mladen, Bakić, Vukman, Živković, Predrag, "Estimation of Power Production of Wind Potential" in SDEWES : 14th Conference on Sustainable Development of Energy, Water and Environment Systems : Book of abstracts (2019):417-417,
https://hdl.handle.net/21.15107/rcub_vinar_12778 .

Temperature correction factor simulation over the heating period

Vučićević, Biljana S.; Jovanović, Marina P.; Turanjanin, Valentina; Bakić, Vukman; Radivojević, Dušan

(2018)

TY  - JOUR
AU  - Vučićević, Biljana S.
AU  - Jovanović, Marina P.
AU  - Turanjanin, Valentina
AU  - Bakić, Vukman
AU  - Radivojević, Dušan
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-98361800121V
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7974
AB  - New Regulations on energy efficiency in buildings in the Republic of Serbia legislate values for the temperature correction factor used to calculate the heat flux to the outdoor environment through construction elements of a certain type. The temperature correction factor is used to correct errors caused by calculation of heat losses based on the design outdoor and indoor temperature difference of building elements adjacent to unheated spaces which are in direct contact with the ground or external environment. Since the temperature correction factor directly influences the calculation of total heat losses and total annual energy demand, it is recommended that the temperature correction factor be determined on the basis of measured values of outdoor and indoor air temperature, or, on the basis of the values obtained by the simulation. This paper presents the results of measurements in the High School of Design, Textile and Management in Belgrade in order to assess energy efficiency and the energy performance of buildings. Data obtained on the basis of measurements, such as indoor and outdoor temperatures, are used for the calculation of the heat transfer coefficient for the building envelope elements as well as to calculate a temperature correction factor for the unheated attic space of the building. This paper also offers a dynamic simulation of the multi-zones building in the TRNSYS environment. The aim was to compare temperature correction factor values obtained from measured temperature values, with those calculated from standard, taken from the Regulation table and produced by simulation. © 2018 Serbian Society of Heat Transfer Engineers.
T2  - Thermal Science
T1  - Temperature correction factor simulation over the heating period
VL  - 22
IS  - 00 (Online first)
SP  - 121
EP  - 121
DO  - 10.2298/TSCI170529121V
ER  - 
@article{
author = "Vučićević, Biljana S. and Jovanović, Marina P. and Turanjanin, Valentina and Bakić, Vukman and Radivojević, Dušan",
year = "2018",
abstract = "New Regulations on energy efficiency in buildings in the Republic of Serbia legislate values for the temperature correction factor used to calculate the heat flux to the outdoor environment through construction elements of a certain type. The temperature correction factor is used to correct errors caused by calculation of heat losses based on the design outdoor and indoor temperature difference of building elements adjacent to unheated spaces which are in direct contact with the ground or external environment. Since the temperature correction factor directly influences the calculation of total heat losses and total annual energy demand, it is recommended that the temperature correction factor be determined on the basis of measured values of outdoor and indoor air temperature, or, on the basis of the values obtained by the simulation. This paper presents the results of measurements in the High School of Design, Textile and Management in Belgrade in order to assess energy efficiency and the energy performance of buildings. Data obtained on the basis of measurements, such as indoor and outdoor temperatures, are used for the calculation of the heat transfer coefficient for the building envelope elements as well as to calculate a temperature correction factor for the unheated attic space of the building. This paper also offers a dynamic simulation of the multi-zones building in the TRNSYS environment. The aim was to compare temperature correction factor values obtained from measured temperature values, with those calculated from standard, taken from the Regulation table and produced by simulation. © 2018 Serbian Society of Heat Transfer Engineers.",
journal = "Thermal Science",
title = "Temperature correction factor simulation over the heating period",
volume = "22",
number = "00 (Online first)",
pages = "121-121",
doi = "10.2298/TSCI170529121V"
}
Vučićević, B. S., Jovanović, M. P., Turanjanin, V., Bakić, V.,& Radivojević, D.. (2018). Temperature correction factor simulation over the heating period. in Thermal Science, 22(00 (Online first)), 121-121.
https://doi.org/10.2298/TSCI170529121V
Vučićević BS, Jovanović MP, Turanjanin V, Bakić V, Radivojević D. Temperature correction factor simulation over the heating period. in Thermal Science. 2018;22(00 (Online first)):121-121.
doi:10.2298/TSCI170529121V .
Vučićević, Biljana S., Jovanović, Marina P., Turanjanin, Valentina, Bakić, Vukman, Radivojević, Dušan, "Temperature correction factor simulation over the heating period" in Thermal Science, 22, no. 00 (Online first) (2018):121-121,
https://doi.org/10.2298/TSCI170529121V . .
1
1

Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia

Jovanović, Marina P.; Bakić, Vukman; Vučićević, Biljana S.; Turanjanin, Valentina

(2018)

TY  - JOUR
AU  - Jovanović, Marina P.
AU  - Bakić, Vukman
AU  - Vučićević, Biljana S.
AU  - Turanjanin, Valentina
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-98361800298J
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7980
AB  - The district heating system in Serbia, with an installed capacity of 6,600 MW, currently supplies 58 towns with thermal energy. As a candidate country for accession to the European Union, Serbia faces the obligation to reduce the level of its greenhouse gas emissions as part of environmental reforms. This paper presents a basic scenario and three alternatives for final energy consumption in the district heating sector for the years 2015, 2020 and 2025. It is suggested that demand for heating will increase 10% up to 2020 and by 15% up to2025, in relation to 2015 levels, while the share of each energy carrier will not change. Changing the structure of energy sources for heat supply assumes a decrease in the share of coal and liquid fuel, and increases in the use of biomass and natural gas. The results obtained were compared to the General Index of Sustainability which is a measure of the complexity of the proposed energy scenario. The paper considers the formation of related energy indicators as quantitative tools for the analysis of changes. It also proposes a methodology for multi-criteria analysis in the sustainability assessment of complex energy systems based on the stochastic evaluation of criteria (sets of indicators and sub-indicators). In this way, the results of the multi-criteria assessment can help in the decision-making process in cases where economic, social and ecological criteria are considered to be influential. © 2018 Serbian Society of Heat Transfer Engineers.
T2  - Thermal Science
T1  - Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia
VL  - 22
IS  - 00 (Online first)
SP  - 298
EP  - 298
DO  - 10.2298/TSCI181009298J
ER  - 
@article{
author = "Jovanović, Marina P. and Bakić, Vukman and Vučićević, Biljana S. and Turanjanin, Valentina",
year = "2018",
abstract = "The district heating system in Serbia, with an installed capacity of 6,600 MW, currently supplies 58 towns with thermal energy. As a candidate country for accession to the European Union, Serbia faces the obligation to reduce the level of its greenhouse gas emissions as part of environmental reforms. This paper presents a basic scenario and three alternatives for final energy consumption in the district heating sector for the years 2015, 2020 and 2025. It is suggested that demand for heating will increase 10% up to 2020 and by 15% up to2025, in relation to 2015 levels, while the share of each energy carrier will not change. Changing the structure of energy sources for heat supply assumes a decrease in the share of coal and liquid fuel, and increases in the use of biomass and natural gas. The results obtained were compared to the General Index of Sustainability which is a measure of the complexity of the proposed energy scenario. The paper considers the formation of related energy indicators as quantitative tools for the analysis of changes. It also proposes a methodology for multi-criteria analysis in the sustainability assessment of complex energy systems based on the stochastic evaluation of criteria (sets of indicators and sub-indicators). In this way, the results of the multi-criteria assessment can help in the decision-making process in cases where economic, social and ecological criteria are considered to be influential. © 2018 Serbian Society of Heat Transfer Engineers.",
journal = "Thermal Science",
title = "Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia",
volume = "22",
number = "00 (Online first)",
pages = "298-298",
doi = "10.2298/TSCI181009298J"
}
Jovanović, M. P., Bakić, V., Vučićević, B. S.,& Turanjanin, V.. (2018). Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia. in Thermal Science, 22(00 (Online first)), 298-298.
https://doi.org/10.2298/TSCI181009298J
Jovanović MP, Bakić V, Vučićević BS, Turanjanin V. Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia. in Thermal Science. 2018;22(00 (Online first)):298-298.
doi:10.2298/TSCI181009298J .
Jovanović, Marina P., Bakić, Vukman, Vučićević, Biljana S., Turanjanin, Valentina, "Analysis of different scenarios and sustainability measurement in the district heating sector in Serbia" in Thermal Science, 22, no. 00 (Online first) (2018):298-298,
https://doi.org/10.2298/TSCI181009298J . .
7
2
5

Capillary-porous heat exchangers for cooling of melting units

Genbach, Alexander A.; Jamankulova, Nellya O.; Bakić, Vukman

(2018)

TY  - JOUR
AU  - Genbach, Alexander A.
AU  - Jamankulova, Nellya O.
AU  - Bakić, Vukman
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-983618359G
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8028
AB  - The model of development of a vapor phase in porous structures of heat exchangers for cooling of melting units on the basis of cinema observations which ex-plains the mechanism of nucleation, development, and death of steam bubbles is created. In case of crisis of heat exchange, there are the limiting conditions of a surface of a porous coating and metal substrate. The process of destroying can come from melting, or from heat stresses of compression and stretching. The reliability of a cooling system of melting units is defined by the combined action of capillary and mass forces. © 2018 Society of Thermal Engineers of Serbia.
T2  - Thermal Science
T1  - Capillary-porous heat exchangers for cooling of melting units
VL  - 22
IS  - Suppl. 5
SP  - 1359
EP  - 1369
DO  - 10.2298/TSCI18S5359G
ER  - 
@article{
author = "Genbach, Alexander A. and Jamankulova, Nellya O. and Bakić, Vukman",
year = "2018",
abstract = "The model of development of a vapor phase in porous structures of heat exchangers for cooling of melting units on the basis of cinema observations which ex-plains the mechanism of nucleation, development, and death of steam bubbles is created. In case of crisis of heat exchange, there are the limiting conditions of a surface of a porous coating and metal substrate. The process of destroying can come from melting, or from heat stresses of compression and stretching. The reliability of a cooling system of melting units is defined by the combined action of capillary and mass forces. © 2018 Society of Thermal Engineers of Serbia.",
journal = "Thermal Science",
title = "Capillary-porous heat exchangers for cooling of melting units",
volume = "22",
number = "Suppl. 5",
pages = "1359-1369",
doi = "10.2298/TSCI18S5359G"
}
Genbach, A. A., Jamankulova, N. O.,& Bakić, V.. (2018). Capillary-porous heat exchangers for cooling of melting units. in Thermal Science, 22(Suppl. 5), 1359-1369.
https://doi.org/10.2298/TSCI18S5359G
Genbach AA, Jamankulova NO, Bakić V. Capillary-porous heat exchangers for cooling of melting units. in Thermal Science. 2018;22(Suppl. 5):1359-1369.
doi:10.2298/TSCI18S5359G .
Genbach, Alexander A., Jamankulova, Nellya O., Bakić, Vukman, "Capillary-porous heat exchangers for cooling of melting units" in Thermal Science, 22, no. Suppl. 5 (2018):1359-1369,
https://doi.org/10.2298/TSCI18S5359G . .
1
1
1

Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy

Cvetinović, Dejan; Stefanović, Predrag Lj.; Bakić, Vukman; Oka, Simeon N.

(2017)

TY  - JOUR
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Bakić, Vukman
AU  - Oka, Simeon N.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7196
AB  - Paper gives a review of the most important results of turbulence research achieved by the Laboratory for Thermal Engineering and Energy at the Vinca Insitute of Nuclear Sciences. Paper presents detailed overview of the history of the scientific research provided in the laboratory, from the beginning in the mid-60s to today, pointing out the main reasons initiating the investigations in this field. After the first period, which was mainly devoted to the research of the structure of the turbulence, since the beginning of the 80s, research is mainly oriented to the flows at high temperatures including chemical reactions and to the development and improvement of differential mathematical models as a modern and very efficient tool in the technological development. This research significantly contributed to the development of pulverized coal burners, plasma-chemical reactors, and optimization of pulverized coal fired boilers operating parameters and prediction of the greenhouse gases emissions. Most recent period includes experimental and numerical studies of the coherent structures in turbulent fluid jets, mathematical modeling of various turbulent thermal flow processes including two-phase turbulent flow in the multiphase heat exchangers and mathematical modeling of the atmospheric boundary layer.
T2  - Thermal Science
T1  - Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy
VL  - 21
SP  - S875
EP  - S898
DO  - 10.2298/TSCI160221330C
ER  - 
@article{
author = "Cvetinović, Dejan and Stefanović, Predrag Lj. and Bakić, Vukman and Oka, Simeon N.",
year = "2017",
abstract = "Paper gives a review of the most important results of turbulence research achieved by the Laboratory for Thermal Engineering and Energy at the Vinca Insitute of Nuclear Sciences. Paper presents detailed overview of the history of the scientific research provided in the laboratory, from the beginning in the mid-60s to today, pointing out the main reasons initiating the investigations in this field. After the first period, which was mainly devoted to the research of the structure of the turbulence, since the beginning of the 80s, research is mainly oriented to the flows at high temperatures including chemical reactions and to the development and improvement of differential mathematical models as a modern and very efficient tool in the technological development. This research significantly contributed to the development of pulverized coal burners, plasma-chemical reactors, and optimization of pulverized coal fired boilers operating parameters and prediction of the greenhouse gases emissions. Most recent period includes experimental and numerical studies of the coherent structures in turbulent fluid jets, mathematical modeling of various turbulent thermal flow processes including two-phase turbulent flow in the multiphase heat exchangers and mathematical modeling of the atmospheric boundary layer.",
journal = "Thermal Science",
title = "Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy",
volume = "21",
pages = "S875-S898",
doi = "10.2298/TSCI160221330C"
}
Cvetinović, D., Stefanović, P. Lj., Bakić, V.,& Oka, S. N.. (2017). Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy. in Thermal Science, 21, S875-S898.
https://doi.org/10.2298/TSCI160221330C
Cvetinović D, Stefanović PL, Bakić V, Oka SN. Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy. in Thermal Science. 2017;21:S875-S898.
doi:10.2298/TSCI160221330C .
Cvetinović, Dejan, Stefanović, Predrag Lj., Bakić, Vukman, Oka, Simeon N., "Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy" in Thermal Science, 21 (2017):S875-S898,
https://doi.org/10.2298/TSCI160221330C . .
1
4
5

The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid

Genbach, Alexander A.; Jamankulova, Nellya O.; Bakić, Vukman

(2017)

TY  - JOUR
AU  - Genbach, Alexander A.
AU  - Jamankulova, Nellya O.
AU  - Bakić, Vukman
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1461
AB  - The processes of vaporization in porous structures, working with the excess of liquid are investigated. With regard to the thermal power plants new porous cooling system is proposed and investigated, in which the supply of coolant is conducted by the combined action of gravity and capillary forces. The cooling surface is made of stainless steel, brass, copper, bronze, nickel, alundum, and glass, with wall thickness of 0.0.5.10(-3)-2.10(-3) m. Visualizations of the processes of vaporization were carried out using holographic interferometry with the laser system and high speed camera. The operating conditions of the experiments were: water pressures 0.01-10 MPa, the temperature difference of subcooling 0-20 degrees C, an excess of liquid 1-14 of the steam flow, the heat load 1.10(4)-60.10(4) W/m(2), the temperature difference 1-60 degrees C, and orientation of the system +/- 0-+/- 90 degrees. Studies have revealed three areas of liquid vaporization process (transitional, developed, and crisis). The impact of operating and design parameters on the integrated and thermal hydraulic characteristics was defined. The optimum (minimum) flow rate of cooling fluid and the most effective type of mesh porous structure were also defined.
T2  - Thermal Science
T1  - The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid
VL  - 21
IS  - 1
SP  - 363
EP  - 373
DO  - 10.2298/TSCI160326313G
ER  - 
@article{
author = "Genbach, Alexander A. and Jamankulova, Nellya O. and Bakić, Vukman",
year = "2017",
abstract = "The processes of vaporization in porous structures, working with the excess of liquid are investigated. With regard to the thermal power plants new porous cooling system is proposed and investigated, in which the supply of coolant is conducted by the combined action of gravity and capillary forces. The cooling surface is made of stainless steel, brass, copper, bronze, nickel, alundum, and glass, with wall thickness of 0.0.5.10(-3)-2.10(-3) m. Visualizations of the processes of vaporization were carried out using holographic interferometry with the laser system and high speed camera. The operating conditions of the experiments were: water pressures 0.01-10 MPa, the temperature difference of subcooling 0-20 degrees C, an excess of liquid 1-14 of the steam flow, the heat load 1.10(4)-60.10(4) W/m(2), the temperature difference 1-60 degrees C, and orientation of the system +/- 0-+/- 90 degrees. Studies have revealed three areas of liquid vaporization process (transitional, developed, and crisis). The impact of operating and design parameters on the integrated and thermal hydraulic characteristics was defined. The optimum (minimum) flow rate of cooling fluid and the most effective type of mesh porous structure were also defined.",
journal = "Thermal Science",
title = "The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid",
volume = "21",
number = "1",
pages = "363-373",
doi = "10.2298/TSCI160326313G"
}
Genbach, A. A., Jamankulova, N. O.,& Bakić, V.. (2017). The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid. in Thermal Science, 21(1), 363-373.
https://doi.org/10.2298/TSCI160326313G
Genbach AA, Jamankulova NO, Bakić V. The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid. in Thermal Science. 2017;21(1):363-373.
doi:10.2298/TSCI160326313G .
Genbach, Alexander A., Jamankulova, Nellya O., Bakić, Vukman, "The Processes of Vaporization in the Porous Structures Working with the Excess of Liquid" in Thermal Science, 21, no. 1 (2017):363-373,
https://doi.org/10.2298/TSCI160326313G . .
5
5
7

Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach

Jovanović, Bojana; Filipović, Jovan; Bakić, Vukman

(2017)

TY  - JOUR
AU  - Jovanović, Bojana
AU  - Filipović, Jovan
AU  - Bakić, Vukman
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1673
AB  - In Serbia, a developing country, energy consumption per capita is higher than in most other countries in the region. Implementation of energy management practices is therefore necessary to cut energy consumption and CO2 emissions. This paper gives an insight into how energy management is implemented in Serbian manufacturing (focusing on food processing and manufacturing of non-metallic mineral products, defined as priority industrial sectors). No similar study for Serbian manufacturing has been published. The study was carried out using an on-line questionnaire based on the ISO 50001 requirements. Questions were grouped into 16 categories and presented according to the PDCA (Plan-Do Check-Act) cycle. The propbsed methodology has not been used by other researchers for similar problems. The survey was conducted in 52 organizations and lasted from May to December 2015. We found that the average level of requirements fulfillment in priority industrial sectors in Serbia is 59.05%. Full implementation was found in only 5.8% of participating organizations. Average implementation of the PLAN phase (establishing basics for energy management) is 61.87%, implementation of the DO phase (realization of energy management processes) is 59.98%, implementation of the CHECK phase (monitoring and measurement of energy performance) is 59.61%, and finally, implementation of the ACT phase (review and improvement of energy management) is only 3534%. The study results offer scientific data for improving national policy and education on energy management in Serbia. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Journal of Cleaner Production
T1  - Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach
VL  - 162
SP  - 1144
EP  - 1156
DO  - 10.1016/j.jclepro.2017.06.140
ER  - 
@article{
author = "Jovanović, Bojana and Filipović, Jovan and Bakić, Vukman",
year = "2017",
abstract = "In Serbia, a developing country, energy consumption per capita is higher than in most other countries in the region. Implementation of energy management practices is therefore necessary to cut energy consumption and CO2 emissions. This paper gives an insight into how energy management is implemented in Serbian manufacturing (focusing on food processing and manufacturing of non-metallic mineral products, defined as priority industrial sectors). No similar study for Serbian manufacturing has been published. The study was carried out using an on-line questionnaire based on the ISO 50001 requirements. Questions were grouped into 16 categories and presented according to the PDCA (Plan-Do Check-Act) cycle. The propbsed methodology has not been used by other researchers for similar problems. The survey was conducted in 52 organizations and lasted from May to December 2015. We found that the average level of requirements fulfillment in priority industrial sectors in Serbia is 59.05%. Full implementation was found in only 5.8% of participating organizations. Average implementation of the PLAN phase (establishing basics for energy management) is 61.87%, implementation of the DO phase (realization of energy management processes) is 59.98%, implementation of the CHECK phase (monitoring and measurement of energy performance) is 59.61%, and finally, implementation of the ACT phase (review and improvement of energy management) is only 3534%. The study results offer scientific data for improving national policy and education on energy management in Serbia. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Journal of Cleaner Production",
title = "Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach",
volume = "162",
pages = "1144-1156",
doi = "10.1016/j.jclepro.2017.06.140"
}
Jovanović, B., Filipović, J.,& Bakić, V.. (2017). Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach. in Journal of Cleaner Production, 162, 1144-1156.
https://doi.org/10.1016/j.jclepro.2017.06.140
Jovanović B, Filipović J, Bakić V. Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach. in Journal of Cleaner Production. 2017;162:1144-1156.
doi:10.1016/j.jclepro.2017.06.140 .
Jovanović, Bojana, Filipović, Jovan, Bakić, Vukman, "Energy management system implementation in Serbian manufacturing - Plan-Do-Check-Act cycle approach" in Journal of Cleaner Production, 162 (2017):1144-1156,
https://doi.org/10.1016/j.jclepro.2017.06.140 . .
45
21
44

Structural Analysis of Guyed Mast Exposed to Wind Action

Pezo, Milada L.; Bakić, Vukman; Marković, Zoran J.

(2016)

TY  - JOUR
AU  - Pezo, Milada L.
AU  - Bakić, Vukman
AU  - Marković, Zoran J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7137
AB  - The behavior of the mast is non-linear due to its slenderness and compliant guy-support system, having a tendency to lose stability and even crush suddenly. Wind load is one of the main factors affecting the stability of the structure of the mast. Structural assessment of the different mast configurations has been investigated in the past. Furthermore, European standards EN 1993-3-1:2006 and EN 1993-1-6:2007 already provides some guidelines about the basis of structural analysis of masts and towers. This paper presents the results of numerical simulations of a guyed mast exposed to wind action using finite element method. Structural analyses were performed for three different constant wind loads, modal analysis provides the values of natural frequency and mode shapes, while the stability analysis was performed for the first three buckling load factor values. The motivation for this study is to investigate the contribution of finite element method to structural analysis of a lattice structure such as guyed mast as an alternative and/or improvement to the literature and codes.
T2  - Thermal Science
T1  - Structural Analysis of Guyed Mast Exposed to Wind Action
VL  - 20
SP  - S1473
EP  - S1483
DO  - 10.2298/TSCI16S5473P
ER  - 
@article{
author = "Pezo, Milada L. and Bakić, Vukman and Marković, Zoran J.",
year = "2016",
abstract = "The behavior of the mast is non-linear due to its slenderness and compliant guy-support system, having a tendency to lose stability and even crush suddenly. Wind load is one of the main factors affecting the stability of the structure of the mast. Structural assessment of the different mast configurations has been investigated in the past. Furthermore, European standards EN 1993-3-1:2006 and EN 1993-1-6:2007 already provides some guidelines about the basis of structural analysis of masts and towers. This paper presents the results of numerical simulations of a guyed mast exposed to wind action using finite element method. Structural analyses were performed for three different constant wind loads, modal analysis provides the values of natural frequency and mode shapes, while the stability analysis was performed for the first three buckling load factor values. The motivation for this study is to investigate the contribution of finite element method to structural analysis of a lattice structure such as guyed mast as an alternative and/or improvement to the literature and codes.",
journal = "Thermal Science",
title = "Structural Analysis of Guyed Mast Exposed to Wind Action",
volume = "20",
pages = "S1473-S1483",
doi = "10.2298/TSCI16S5473P"
}
Pezo, M. L., Bakić, V.,& Marković, Z. J.. (2016). Structural Analysis of Guyed Mast Exposed to Wind Action. in Thermal Science, 20, S1473-S1483.
https://doi.org/10.2298/TSCI16S5473P
Pezo ML, Bakić V, Marković ZJ. Structural Analysis of Guyed Mast Exposed to Wind Action. in Thermal Science. 2016;20:S1473-S1483.
doi:10.2298/TSCI16S5473P .
Pezo, Milada L., Bakić, Vukman, Marković, Zoran J., "Structural Analysis of Guyed Mast Exposed to Wind Action" in Thermal Science, 20 (2016):S1473-S1483,
https://doi.org/10.2298/TSCI16S5473P . .
6
5
6

Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications

Stojković, Saša M.; Bakić, Vukman

(2016)

TY  - JOUR
AU  - Stojković, Saša M.
AU  - Bakić, Vukman
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1149
AB  - The paper presents the results of a technical and economic analysis of three stand-alone hybrid power systems based on renewable energy sources which supply a specific group of low-power consumers. This particular case includes measuring sensors and obstacle lights on a meteorological mast for wind measurements requiring an uninterrupted power supply in cold climate conditions. Although these low-power (100 W) measuring sensors and obstacle lights use little energy, their energy consumption is not the same as the available solar energy obtained on a daily or seasonal basis. In the paper, complementarily of renewable energy sources was analysed, as well as one of short-term lead-acid battery based storage and seasonal, hydrogen-based (electrolyses, H-2 tank, and fuel cells) storage. These relatively complex power systems were proposed earlier for high-power consumers only, while this study specifically highlights the role of the hydrogen system for supplying low-power consumers. The analysis employed a numerical simulation method using the HOMER software tool. The results of the analysis suggest that solar and wind-solar systems, which involve meteorological conditions as referred to in this paper, include a relatively large number of lead acid batteries. Additionally, the analysis suggests that the use of hydrogen power systems for supplying low power-consumers is entirely justifiable, as it significantly reduces the number of batteries (two at minimum in this particular case). It was shown that the increase in costs induced by the hydrogen system is acceptable.
T2  - Thermal Science
T1  - Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications
VL  - 20
SP  - S261
EP  - S273
DO  - 10.2298/TSCI150308195S
ER  - 
@article{
author = "Stojković, Saša M. and Bakić, Vukman",
year = "2016",
abstract = "The paper presents the results of a technical and economic analysis of three stand-alone hybrid power systems based on renewable energy sources which supply a specific group of low-power consumers. This particular case includes measuring sensors and obstacle lights on a meteorological mast for wind measurements requiring an uninterrupted power supply in cold climate conditions. Although these low-power (100 W) measuring sensors and obstacle lights use little energy, their energy consumption is not the same as the available solar energy obtained on a daily or seasonal basis. In the paper, complementarily of renewable energy sources was analysed, as well as one of short-term lead-acid battery based storage and seasonal, hydrogen-based (electrolyses, H-2 tank, and fuel cells) storage. These relatively complex power systems were proposed earlier for high-power consumers only, while this study specifically highlights the role of the hydrogen system for supplying low-power consumers. The analysis employed a numerical simulation method using the HOMER software tool. The results of the analysis suggest that solar and wind-solar systems, which involve meteorological conditions as referred to in this paper, include a relatively large number of lead acid batteries. Additionally, the analysis suggests that the use of hydrogen power systems for supplying low power-consumers is entirely justifiable, as it significantly reduces the number of batteries (two at minimum in this particular case). It was shown that the increase in costs induced by the hydrogen system is acceptable.",
journal = "Thermal Science",
title = "Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications",
volume = "20",
pages = "S261-S273",
doi = "10.2298/TSCI150308195S"
}
Stojković, S. M.,& Bakić, V.. (2016). Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications. in Thermal Science, 20, S261-S273.
https://doi.org/10.2298/TSCI150308195S
Stojković SM, Bakić V. Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications. in Thermal Science. 2016;20:S261-S273.
doi:10.2298/TSCI150308195S .
Stojković, Saša M., Bakić, Vukman, "Techno-Economic Analysis of Stand-Alone Photovoltaic/Wind/Battery/Hydrogen Systems for Very Small-Scale Applications" in Thermal Science, 20 (2016):S261-S273,
https://doi.org/10.2298/TSCI150308195S . .
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Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions

Bakić, Vukman; Pezo, Milada L.; Stojković, Saša M.

(2016)

TY  - JOUR
AU  - Bakić, Vukman
AU  - Pezo, Milada L.
AU  - Stojković, Saša M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1689
AB  - In this paper technical and economic analysis of grid-connected PV/Wind energy systems located in the Republic of Serbia are presented. The technical and economic data, of the various grid-connected PV/Wind hybrid energy systems for three different locations: Novi Sad, Belgrade and Kopaonik, using the transient simulations software TRNSYS and HOMER were obtained. The results obtained in this paper show that locations and technical characteristics of the energy systems have an important influence on the amount of delivering electrical power to the grid. The CO2 emissions reductions, obtained on the basis of delivered electrical power to distribution networks are also analyzed. Economic analysis is carried out using Life Cycling Cost (LCC) method. The adoption and implementation of feed-in tariffs have a significant role in enhancing the implementation of technologies that use renewable energy resources.
T2  - FME Transactions
T1  - Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions
VL  - 44
IS  - 1
SP  - 71
EP  - 82
DO  - 10.5937/fmet1601071B
ER  - 
@article{
author = "Bakić, Vukman and Pezo, Milada L. and Stojković, Saša M.",
year = "2016",
abstract = "In this paper technical and economic analysis of grid-connected PV/Wind energy systems located in the Republic of Serbia are presented. The technical and economic data, of the various grid-connected PV/Wind hybrid energy systems for three different locations: Novi Sad, Belgrade and Kopaonik, using the transient simulations software TRNSYS and HOMER were obtained. The results obtained in this paper show that locations and technical characteristics of the energy systems have an important influence on the amount of delivering electrical power to the grid. The CO2 emissions reductions, obtained on the basis of delivered electrical power to distribution networks are also analyzed. Economic analysis is carried out using Life Cycling Cost (LCC) method. The adoption and implementation of feed-in tariffs have a significant role in enhancing the implementation of technologies that use renewable energy resources.",
journal = "FME Transactions",
title = "Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions",
volume = "44",
number = "1",
pages = "71-82",
doi = "10.5937/fmet1601071B"
}
Bakić, V., Pezo, M. L.,& Stojković, S. M.. (2016). Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions. in FME Transactions, 44(1), 71-82.
https://doi.org/10.5937/fmet1601071B
Bakić V, Pezo ML, Stojković SM. Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions. in FME Transactions. 2016;44(1):71-82.
doi:10.5937/fmet1601071B .
Bakić, Vukman, Pezo, Milada L., Stojković, Saša M., "Technical and Economic Analysis of Grid-Connected PV/Wind Energy Stations in the Republic of Serbia Under Varying Climatic Conditions" in FME Transactions, 44, no. 1 (2016):71-82,
https://doi.org/10.5937/fmet1601071B . .
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Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method

Jovanović, Bojana; Filipović, Jovan; Bakić, Vukman

(2015)

TY  - JOUR
AU  - Jovanović, Bojana
AU  - Filipović, Jovan
AU  - Bakić, Vukman
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/702
AB  - Manufacturing, which is destined to play the most significant role in the reindustrialization of Serbia is also one of the largest energy consumers and environmental polluters. In accordance with this, a large number of energy and environment management initiatives have been implemented over the years. In developed countries, these initiatives are at an advanced level, but not in Serbia. A group of manufacturers in Serbia has recognized the significance of the environmental initiatives implementation, but the interest in energy management improvement has remained low. Although these initiatives can be used to achieve cost reduction in industry, not all the manufacturing sectors equally value the importance of energy management improvement. Among all the manufacturing sectors, it is necessary to prioritize those with the potentials for energy management improvement, which can be done using different methods. In this paper, the AHP (Analytic Hierarchy Process) method was used to prioritize manufacturing sectors in Serbia in the area of energy management improvement. Using a created AHP questionnaires criteria weights were selected. These questionnaires were completed by the experts from the Serbian Chamber of Commerce and Industry, providing us with the opportunity to evaluate the Serbian manufacturing sectors based on the real life data. The results of the AHP method, which was used as the prioritization instrument, and their analysis are presented in the paper. As a part of a wider study, aimed at the improvement of the energy management in Serbia, the three manufacturing sectors with the highest priority (Manufacture of food products, Manufacture of motor vehicles, trailers and semi-trailers, Manufacture of other non-metallic mineral products) will be analyzed in the future research in terms of energy process flows, energy management system implementation and other relevant issues. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Energy Conversion and Management
T1  - Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method
VL  - 98
SP  - 225
EP  - 235
DO  - 10.1016/j.enconman.2015.03.107
ER  - 
@article{
author = "Jovanović, Bojana and Filipović, Jovan and Bakić, Vukman",
year = "2015",
abstract = "Manufacturing, which is destined to play the most significant role in the reindustrialization of Serbia is also one of the largest energy consumers and environmental polluters. In accordance with this, a large number of energy and environment management initiatives have been implemented over the years. In developed countries, these initiatives are at an advanced level, but not in Serbia. A group of manufacturers in Serbia has recognized the significance of the environmental initiatives implementation, but the interest in energy management improvement has remained low. Although these initiatives can be used to achieve cost reduction in industry, not all the manufacturing sectors equally value the importance of energy management improvement. Among all the manufacturing sectors, it is necessary to prioritize those with the potentials for energy management improvement, which can be done using different methods. In this paper, the AHP (Analytic Hierarchy Process) method was used to prioritize manufacturing sectors in Serbia in the area of energy management improvement. Using a created AHP questionnaires criteria weights were selected. These questionnaires were completed by the experts from the Serbian Chamber of Commerce and Industry, providing us with the opportunity to evaluate the Serbian manufacturing sectors based on the real life data. The results of the AHP method, which was used as the prioritization instrument, and their analysis are presented in the paper. As a part of a wider study, aimed at the improvement of the energy management in Serbia, the three manufacturing sectors with the highest priority (Manufacture of food products, Manufacture of motor vehicles, trailers and semi-trailers, Manufacture of other non-metallic mineral products) will be analyzed in the future research in terms of energy process flows, energy management system implementation and other relevant issues. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Energy Conversion and Management",
title = "Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method",
volume = "98",
pages = "225-235",
doi = "10.1016/j.enconman.2015.03.107"
}
Jovanović, B., Filipović, J.,& Bakić, V.. (2015). Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method. in Energy Conversion and Management, 98, 225-235.
https://doi.org/10.1016/j.enconman.2015.03.107
Jovanović B, Filipović J, Bakić V. Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method. in Energy Conversion and Management. 2015;98:225-235.
doi:10.1016/j.enconman.2015.03.107 .
Jovanović, Bojana, Filipović, Jovan, Bakić, Vukman, "Prioritization of manufacturing sectors in Serbia for energy management improvement - AHP method" in Energy Conversion and Management, 98 (2015):225-235,
https://doi.org/10.1016/j.enconman.2015.03.107 . .
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50

On finite element analysis of sling wire rope subjected to axial loading

Kastratovic, Gordana; Vidanovic, Nenad; Bakić, Vukman; Rasuo, Basko

(2014)

TY  - JOUR
AU  - Kastratovic, Gordana
AU  - Vidanovic, Nenad
AU  - Bakić, Vukman
AU  - Rasuo, Basko
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/107
AB  - This paper explores some aspects of finite element modeling of 7 x 19 IWS (wire rope with Independent wire strand core), as mostly used sling wire rope. First, the 1 x 19 stainless steel wire strand core was investigated. The numerical analysis was carried out by the finite element method. In this analysis two different types of contacts were investigated: bonded and frictional contact. The strand core was subjected to two different types of axial loading. The obtained results were compared with the solutions calculated from the available literature. Finally, using the advanced modeling techniques, the parametric 3D model of 7 x 19 IWS was also analyzed by using the finite element method, in order to provide a better understanding and, hence, prediction, of the mechanical behavior of the sling wire ropes. (c) 2014 Elsevier Ltd. All rights reserved.
T2  - Ocean Engineering
T1  - On finite element analysis of sling wire rope subjected to axial loading
VL  - 88
SP  - 480
EP  - 487
DO  - 10.1016/j.oceaneng.2014.07.014
ER  - 
@article{
author = "Kastratovic, Gordana and Vidanovic, Nenad and Bakić, Vukman and Rasuo, Basko",
year = "2014",
abstract = "This paper explores some aspects of finite element modeling of 7 x 19 IWS (wire rope with Independent wire strand core), as mostly used sling wire rope. First, the 1 x 19 stainless steel wire strand core was investigated. The numerical analysis was carried out by the finite element method. In this analysis two different types of contacts were investigated: bonded and frictional contact. The strand core was subjected to two different types of axial loading. The obtained results were compared with the solutions calculated from the available literature. Finally, using the advanced modeling techniques, the parametric 3D model of 7 x 19 IWS was also analyzed by using the finite element method, in order to provide a better understanding and, hence, prediction, of the mechanical behavior of the sling wire ropes. (c) 2014 Elsevier Ltd. All rights reserved.",
journal = "Ocean Engineering",
title = "On finite element analysis of sling wire rope subjected to axial loading",
volume = "88",
pages = "480-487",
doi = "10.1016/j.oceaneng.2014.07.014"
}
Kastratovic, G., Vidanovic, N., Bakić, V.,& Rasuo, B.. (2014). On finite element analysis of sling wire rope subjected to axial loading. in Ocean Engineering, 88, 480-487.
https://doi.org/10.1016/j.oceaneng.2014.07.014
Kastratovic G, Vidanovic N, Bakić V, Rasuo B. On finite element analysis of sling wire rope subjected to axial loading. in Ocean Engineering. 2014;88:480-487.
doi:10.1016/j.oceaneng.2014.07.014 .
Kastratovic, Gordana, Vidanovic, Nenad, Bakić, Vukman, Rasuo, Basko, "On finite element analysis of sling wire rope subjected to axial loading" in Ocean Engineering, 88 (2014):480-487,
https://doi.org/10.1016/j.oceaneng.2014.07.014 . .
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