TY  - JOUR
AU  - Tomić, Mladen A.
AU  - Ayed, Sadoon K.
AU  - Stevanović, Žana
AU  - Đekić, Petar S.
AU  - Živković, Predrag
AU  - Vukić, Mića V.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1927
AB  - The need for high performance heat exchangers has led to the development of many types of surfaces that enhance the rate of heat transfer. One of the heat exchanger types are the matrix heat exchangers. Matrix heat exchangers consist of a series of perforated plates, separated by a series of spacers. The present study experimentally investigates the overall heat transfer characteristics of flow through a perforated plate with 2 mm in diameter, the hole length to diameter ratio of 1 and 25.6% porosity. Numerical simulations were performed to determine the overall heat transfer in the function of geometric parameters. Reynolds numbers based on the perforated plate pitch were set in the range from 50 to 500. The results of the average Nusselt number prediction were compared with the related experimental correlations. The experimental data agreed on qualitatively with the results obtained using a CFD. Using these data, a Nusselt criterial equation was obtained.
T2  - International Journal of Thermal Sciences
T1  - Perforated plate convective heat transfer analysis
VL  - 124
SP  - 300
EP  - 306
DO  - 10.1016/j.ijthermalsci.2017.10.021
ER  - 

@article{
author = "Tomić, Mladen A. and Ayed, Sadoon K. and Stevanović, Žana and Đekić, Petar S. and Živković, Predrag and Vukić, Mića V.",
year = "2018",
abstract = "The need for high performance heat exchangers has led to the development of many types of surfaces that enhance the rate of heat transfer. One of the heat exchanger types are the matrix heat exchangers. Matrix heat exchangers consist of a series of perforated plates, separated by a series of spacers. The present study experimentally investigates the overall heat transfer characteristics of flow through a perforated plate with 2 mm in diameter, the hole length to diameter ratio of 1 and 25.6% porosity. Numerical simulations were performed to determine the overall heat transfer in the function of geometric parameters. Reynolds numbers based on the perforated plate pitch were set in the range from 50 to 500. The results of the average Nusselt number prediction were compared with the related experimental correlations. The experimental data agreed on qualitatively with the results obtained using a CFD. Using these data, a Nusselt criterial equation was obtained.",
journal = "International Journal of Thermal Sciences",
title = "Perforated plate convective heat transfer analysis",
volume = "124",
pages = "300-306",
doi = "10.1016/j.ijthermalsci.2017.10.021"
}

Tomić, M. A., Ayed, S. K., Stevanović, Ž., Đekić, P. S., Živković, P.,& Vukić, M. V.. (2018). Perforated plate convective heat transfer analysis. in International Journal of Thermal Sciences, 124, 300-306.
https://doi.org/10.1016/j.ijthermalsci.2017.10.021

Tomić MA, Ayed SK, Stevanović Ž, Đekić PS, Živković P, Vukić MV. Perforated plate convective heat transfer analysis. in International Journal of Thermal Sciences. 2018;124:300-306.
doi:10.1016/j.ijthermalsci.2017.10.021 .

Tomić, Mladen A., Ayed, Sadoon K., Stevanović, Žana, Đekić, Petar S., Živković, Predrag, Vukić, Mića V., "Perforated plate convective heat transfer analysis" in International Journal of Thermal Sciences, 124 (2018):300-306,
https://doi.org/10.1016/j.ijthermalsci.2017.10.021 . .

TY  - JOUR
AU  - Stevanović, Žana
AU  - Ilić, Gradimir S.
AU  - Vukić, Mića V.
AU  - Živković, Predrag
AU  - Blagojević, Bratislav D.
AU  - Banjac, Miloš J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1151
AB  - The purpose of thermal comfort is to speck the combinations of indoor space environment and personal factors that will produce thermal environment conditions acceptable to 80% or more of the occupants within a space. Naturally ventilated indoors has a very complex air movement, which depends on numerous variables such as: outdoor interaction, intensity of infiltration, the number of openings, the thermal inertia of walls, occupant behaviors, etc. The most important mechanism for naturally ventilated indoors is the intensity of infiltration and thermal buoyancy mechanism. In this study the objective was to determine indicators of thermal comfort for children, by the CFD model based on experimental measurements with modification on turbulent and radiant heat transfer mathematical model. The case study was selected on school children of 8 and 9 years in France Presern primary school in Belgrade. The purpose was to evaluate the relationships between the indoor environment and the subjective responses. Also there was analysis of infiltration and stack effect based on meteorological data on site. The main parameters that were investigated are: operative temperature, radiant temperature, concentration of CO2, and air velocity. The new correction of turbulence and radiative heat transfer models has been validated by comparison with experimental data using additional statistical indicators. It was found that both turbulence model correct and the new radiative model of nontransparent media have a significant influence on CFD data set accuracy.
T2  - Thermal Science
T1  - Cfd Simulations of Thermal Comfort in Naturally Ventilated Primary School Classrooms
VL  - 20
SP  - S287
EP  - S296
DO  - 10.2298/TSCI150414171S
ER  - 

@article{
author = "Stevanović, Žana and Ilić, Gradimir S. and Vukić, Mića V. and Živković, Predrag and Blagojević, Bratislav D. and Banjac, Miloš J.",
year = "2016",
abstract = "The purpose of thermal comfort is to speck the combinations of indoor space environment and personal factors that will produce thermal environment conditions acceptable to 80% or more of the occupants within a space. Naturally ventilated indoors has a very complex air movement, which depends on numerous variables such as: outdoor interaction, intensity of infiltration, the number of openings, the thermal inertia of walls, occupant behaviors, etc. The most important mechanism for naturally ventilated indoors is the intensity of infiltration and thermal buoyancy mechanism. In this study the objective was to determine indicators of thermal comfort for children, by the CFD model based on experimental measurements with modification on turbulent and radiant heat transfer mathematical model. The case study was selected on school children of 8 and 9 years in France Presern primary school in Belgrade. The purpose was to evaluate the relationships between the indoor environment and the subjective responses. Also there was analysis of infiltration and stack effect based on meteorological data on site. The main parameters that were investigated are: operative temperature, radiant temperature, concentration of CO2, and air velocity. The new correction of turbulence and radiative heat transfer models has been validated by comparison with experimental data using additional statistical indicators. It was found that both turbulence model correct and the new radiative model of nontransparent media have a significant influence on CFD data set accuracy.",
journal = "Thermal Science",
title = "Cfd Simulations of Thermal Comfort in Naturally Ventilated Primary School Classrooms",
volume = "20",
pages = "S287-S296",
doi = "10.2298/TSCI150414171S"
}

Stevanović, Ž., Ilić, G. S., Vukić, M. V., Živković, P., Blagojević, B. D.,& Banjac, M. J.. (2016). Cfd Simulations of Thermal Comfort in Naturally Ventilated Primary School Classrooms. in Thermal Science, 20, S287-S296.
https://doi.org/10.2298/TSCI150414171S

Stevanović Ž, Ilić GS, Vukić MV, Živković P, Blagojević BD, Banjac MJ. Cfd Simulations of Thermal Comfort in Naturally Ventilated Primary School Classrooms. in Thermal Science. 2016;20:S287-S296.
doi:10.2298/TSCI150414171S .

Stevanović, Žana, Ilić, Gradimir S., Vukić, Mića V., Živković, Predrag, Blagojević, Bratislav D., Banjac, Miloš J., "Cfd Simulations of Thermal Comfort in Naturally Ventilated Primary School Classrooms" in Thermal Science, 20 (2016):S287-S296,
https://doi.org/10.2298/TSCI150414171S . .

TY  - JOUR
AU  - Živković, Predrag
AU  - Tomić, Mladen A.
AU  - Janevski, Jelena N.
AU  - Stevanović, Žana
AU  - Milutinovic, Biljana B.
AU  - Vukić, Mića V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7135
AB  - The need for compact heat exchangers has led to the development of many types of surfaces that enhance the rate of heat transfer, among them the perforated plate heat exchangers, also known as matrix heat exchangers. The perforated plate heat exchangers consist of a series of perforated plates that are separated by a series of spacers. The present study investigates the heat transfer characteristics of the package of perforated plates. Perforated plates were 2 mm thick, with holes with 2 mm in diameter and porosity of 25.6%. The package of one, two, and three perforated plates was set in the channel of the experimental chamber at which entrance was a thrust fan with the ability to control the flow rate. The fluid flow rates, the temperatures of the fluids at the inlet and outlet of the chamber and the temperature of the air between the plates, were measured at the pre-defined locations in the package and the experimental chamber. Based on the measurements, heat transfer coefficients for the individual plates, as well as for the packages of perforated plates were determined. In further research, an iterative analytical procedure for investigation of the heat transfer process and the overall heat transfer coefficient for the package of perforated plates were developed. Based on these analytical and experimental results, conclusions were drawn about the heat transfer in a package of perforated plates.
T2  - Thermal Science
T1  - Experimental and Analytical Research of the Heat Transfer Process in the Package of Perforated Plates
VL  - 20
SP  - S1251
EP  - S1257
DO  - 10.2298/TSCI16S5251Z
ER  - 

@article{
author = "Živković, Predrag and Tomić, Mladen A. and Janevski, Jelena N. and Stevanović, Žana and Milutinovic, Biljana B. and Vukić, Mića V.",
year = "2016",
abstract = "The need for compact heat exchangers has led to the development of many types of surfaces that enhance the rate of heat transfer, among them the perforated plate heat exchangers, also known as matrix heat exchangers. The perforated plate heat exchangers consist of a series of perforated plates that are separated by a series of spacers. The present study investigates the heat transfer characteristics of the package of perforated plates. Perforated plates were 2 mm thick, with holes with 2 mm in diameter and porosity of 25.6%. The package of one, two, and three perforated plates was set in the channel of the experimental chamber at which entrance was a thrust fan with the ability to control the flow rate. The fluid flow rates, the temperatures of the fluids at the inlet and outlet of the chamber and the temperature of the air between the plates, were measured at the pre-defined locations in the package and the experimental chamber. Based on the measurements, heat transfer coefficients for the individual plates, as well as for the packages of perforated plates were determined. In further research, an iterative analytical procedure for investigation of the heat transfer process and the overall heat transfer coefficient for the package of perforated plates were developed. Based on these analytical and experimental results, conclusions were drawn about the heat transfer in a package of perforated plates.",
journal = "Thermal Science",
title = "Experimental and Analytical Research of the Heat Transfer Process in the Package of Perforated Plates",
volume = "20",
pages = "S1251-S1257",
doi = "10.2298/TSCI16S5251Z"
}

Živković, P., Tomić, M. A., Janevski, J. N., Stevanović, Ž., Milutinovic, B. B.,& Vukić, M. V.. (2016). Experimental and Analytical Research of the Heat Transfer Process in the Package of Perforated Plates. in Thermal Science, 20, S1251-S1257.
https://doi.org/10.2298/TSCI16S5251Z

Živković P, Tomić MA, Janevski JN, Stevanović Ž, Milutinovic BB, Vukić MV. Experimental and Analytical Research of the Heat Transfer Process in the Package of Perforated Plates. in Thermal Science. 2016;20:S1251-S1257.
doi:10.2298/TSCI16S5251Z .

Živković, Predrag, Tomić, Mladen A., Janevski, Jelena N., Stevanović, Žana, Milutinovic, Biljana B., Vukić, Mića V., "Experimental and Analytical Research of the Heat Transfer Process in the Package of Perforated Plates" in Thermal Science, 20 (2016):S1251-S1257,
https://doi.org/10.2298/TSCI16S5251Z . .

TY  - JOUR
AU  - Živković, Predrag
AU  - Tomić, Mladen A.
AU  - Ilić, Gradimir S.
AU  - Vukić, Mica V.
AU  - Stevanović, Žana
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5181
AB  - Rapid industry development as well as increase of traffic volume across the world have resulted in air quality becoming one of the most important factors of everyday life. Air quality monitoring is the necessary factor for proper decision making regarding air pollution. An integral part of such investigations is the measurement of wind characteristics, as the wind is the most influential factor in turbulent pollution diffusion into the atmosphere. The most of the air pollution originates from combustion processes, so it is important to make quantitative, as well as qualitative analysis, as the sources of pollution can be very distant. In this paper, specific methodology for continuous wind, temperature and air quality data acquisition is presented. Comparison of the measured results is given, as well as the detailed presentation of the characteristics of the acquisition software used.
T2  - Hemijska industrija
T1  - Specific approach for continuous air quality monitoring
VL  - 66
IS  - 1
SP  - 85
EP  - 93
DO  - 10.2298/HEMIND110525066Z
ER  - 

@article{
author = "Živković, Predrag and Tomić, Mladen A. and Ilić, Gradimir S. and Vukić, Mica V. and Stevanović, Žana",
year = "2012",
abstract = "Rapid industry development as well as increase of traffic volume across the world have resulted in air quality becoming one of the most important factors of everyday life. Air quality monitoring is the necessary factor for proper decision making regarding air pollution. An integral part of such investigations is the measurement of wind characteristics, as the wind is the most influential factor in turbulent pollution diffusion into the atmosphere. The most of the air pollution originates from combustion processes, so it is important to make quantitative, as well as qualitative analysis, as the sources of pollution can be very distant. In this paper, specific methodology for continuous wind, temperature and air quality data acquisition is presented. Comparison of the measured results is given, as well as the detailed presentation of the characteristics of the acquisition software used.",
journal = "Hemijska industrija",
title = "Specific approach for continuous air quality monitoring",
volume = "66",
number = "1",
pages = "85-93",
doi = "10.2298/HEMIND110525066Z"
}

Živković, P., Tomić, M. A., Ilić, G. S., Vukić, M. V.,& Stevanović, Ž.. (2012). Specific approach for continuous air quality monitoring. in Hemijska industrija, 66(1), 85-93.
https://doi.org/10.2298/HEMIND110525066Z

Živković P, Tomić MA, Ilić GS, Vukić MV, Stevanović Ž. Specific approach for continuous air quality monitoring. in Hemijska industrija. 2012;66(1):85-93.
doi:10.2298/HEMIND110525066Z .

Živković, Predrag, Tomić, Mladen A., Ilić, Gradimir S., Vukić, Mica V., Stevanović, Žana, "Specific approach for continuous air quality monitoring" in Hemijska industrija, 66, no. 1 (2012):85-93,
https://doi.org/10.2298/HEMIND110525066Z . .