TY  - JOUR
AU  - Đurović, Dejan R.
AU  - Nemoda, Stevan
AU  - Repić, Branislav
AU  - Dakić, Dragoljub V.
AU  - Adžić, Miroljub M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/387
AB  - In this paper has been shown improvement of the existing furnace for biomass combustion in the way of improving energy efficiency and meeting environmental protection criteria. One of the main problems during baled biomass combustion process is high CO emission due to incomplete combustion of flue gases. By proper furnace dimensioning that problem can be avoided and also high investment costs can be reduced, since the cost of the furnace is 30-40% of total biomass plant costs. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT. Accuracy of the model has been previously confirmed with experimental data obtained on the existing furnace. Comparative analysis of the results of modeling existing and proposed (improved) furnace has shown lower CO emission (more than 50% less CO emission) at the proposed furnace outlet. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Renewable Energy
T1  - Influence of biomass furnace volume change on flue gases burn out process
VL  - 76
SP  - 1
EP  - 6
DO  - 10.1016/j.renene.2014.11.007
ER  - 

@article{
author = "Đurović, Dejan R. and Nemoda, Stevan and Repić, Branislav and Dakić, Dragoljub V. and Adžić, Miroljub M.",
year = "2015",
abstract = "In this paper has been shown improvement of the existing furnace for biomass combustion in the way of improving energy efficiency and meeting environmental protection criteria. One of the main problems during baled biomass combustion process is high CO emission due to incomplete combustion of flue gases. By proper furnace dimensioning that problem can be avoided and also high investment costs can be reduced, since the cost of the furnace is 30-40% of total biomass plant costs. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT. Accuracy of the model has been previously confirmed with experimental data obtained on the existing furnace. Comparative analysis of the results of modeling existing and proposed (improved) furnace has shown lower CO emission (more than 50% less CO emission) at the proposed furnace outlet. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Renewable Energy",
title = "Influence of biomass furnace volume change on flue gases burn out process",
volume = "76",
pages = "1-6",
doi = "10.1016/j.renene.2014.11.007"
}

Đurović, D. R., Nemoda, S., Repić, B., Dakić, D. V.,& Adžić, M. M.. (2015). Influence of biomass furnace volume change on flue gases burn out process. in Renewable Energy, 76, 1-6.
https://doi.org/10.1016/j.renene.2014.11.007

Đurović DR, Nemoda S, Repić B, Dakić DV, Adžić MM. Influence of biomass furnace volume change on flue gases burn out process. in Renewable Energy. 2015;76:1-6.
doi:10.1016/j.renene.2014.11.007 .

Đurović, Dejan R., Nemoda, Stevan, Repić, Branislav, Dakić, Dragoljub V., Adžić, Miroljub M., "Influence of biomass furnace volume change on flue gases burn out process" in Renewable Energy, 76 (2015):1-6,
https://doi.org/10.1016/j.renene.2014.11.007 . .

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Cvetinović, Dejan
AU  - Erić, Milić D.
AU  - Rasuo, Bosko
AU  - Adžić, Miroljub M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5955
AB  - Numerical modeling is widely used tool for prediction of combustion processes. Computational Fluid Dynamics - CFD models use three kinetic rates for description of the coal combustion processes: coal devolatilization, volatile combustion and char combustion. Reported rates for coal devolatilization vary considerably among the authors depending on the type of experimental systems used in describing the phenomenon. Accurate representation of devolatilization process is necessary in order to perform successful CFD calculations of pulverized coal combustion and gasification. The subject of this work is numerical modeling of Serbian lignite pulverized coal devolatilization in drop tube type laboratory scale reactor. The aim of this study is to evaluate the influence of different devolatilization kinetic factors on total devolatilization time in numerical modeling of pulverized Serbian lignite devolatilization. Nine different devolatilization kinetic rates mostly used in devolatilization numerical modeling are compared in the presented work. (c) 2014 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process
VL  - 72
SP  - 489
EP  - 500
DO  - 10.1016/j.ijheatmasstransfer.2014.01.036
ER  - 

@article{
author = "Jovanović, Rastko D. and Cvetinović, Dejan and Erić, Milić D. and Rasuo, Bosko and Adžić, Miroljub M.",
year = "2014",
abstract = "Numerical modeling is widely used tool for prediction of combustion processes. Computational Fluid Dynamics - CFD models use three kinetic rates for description of the coal combustion processes: coal devolatilization, volatile combustion and char combustion. Reported rates for coal devolatilization vary considerably among the authors depending on the type of experimental systems used in describing the phenomenon. Accurate representation of devolatilization process is necessary in order to perform successful CFD calculations of pulverized coal combustion and gasification. The subject of this work is numerical modeling of Serbian lignite pulverized coal devolatilization in drop tube type laboratory scale reactor. The aim of this study is to evaluate the influence of different devolatilization kinetic factors on total devolatilization time in numerical modeling of pulverized Serbian lignite devolatilization. Nine different devolatilization kinetic rates mostly used in devolatilization numerical modeling are compared in the presented work. (c) 2014 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process",
volume = "72",
pages = "489-500",
doi = "10.1016/j.ijheatmasstransfer.2014.01.036"
}

Jovanović, R. D., Cvetinović, D., Erić, M. D., Rasuo, B.,& Adžić, M. M.. (2014). Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process. in International Journal of Heat and Mass Transfer, 72, 489-500.
https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.036

Jovanović RD, Cvetinović D, Erić MD, Rasuo B, Adžić MM. Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process. in International Journal of Heat and Mass Transfer. 2014;72:489-500.
doi:10.1016/j.ijheatmasstransfer.2014.01.036 .

Jovanović, Rastko D., Cvetinović, Dejan, Erić, Milić D., Rasuo, Bosko, Adžić, Miroljub M., "Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process" in International Journal of Heat and Mass Transfer, 72 (2014):489-500,
https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.036 . .

TY  - JOUR
AU  - Đurović, Dejan R.
AU  - Nemoda, Stevan
AU  - Dakić, Dragoljub V.
AU  - Adžić, Miroljub M.
AU  - Repić, Branislav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4888
AB  - As one of the most easily accessible renewable energy resources, straw can be burned to provide heat energy. In this paper, results of theoretical and experimental research conducted under the proceedings of mathematical - numerical modeling of turbulent reacting flows has been presented. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. The proposed model has been analyzed on the example of adiabatic combustion chamber for combustion of agricultural biomass. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT 6.3.26. For the purposes of experimental research, measurements of fluid flow and thermal parameters, such as continuous measurement of temperature in different points in the workspace furnace, air flow, flue gas flow, continual analysis of combustion products as well as setting heat and material balance, were carried out. Comparative analysis of the results of experiments and calculations indicate satisfactory agreement between the model and experiment. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Furnace for biomass combustion - Comparison of model with experimental data
VL  - 55
IS  - 15-16
SP  - 4312
EP  - 4317
DO  - 10.1016/j.ijheatmasstransfer.2012.03.079
ER  - 

@article{
author = "Đurović, Dejan R. and Nemoda, Stevan and Dakić, Dragoljub V. and Adžić, Miroljub M. and Repić, Branislav",
year = "2012",
abstract = "As one of the most easily accessible renewable energy resources, straw can be burned to provide heat energy. In this paper, results of theoretical and experimental research conducted under the proceedings of mathematical - numerical modeling of turbulent reacting flows has been presented. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. The proposed model has been analyzed on the example of adiabatic combustion chamber for combustion of agricultural biomass. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT 6.3.26. For the purposes of experimental research, measurements of fluid flow and thermal parameters, such as continuous measurement of temperature in different points in the workspace furnace, air flow, flue gas flow, continual analysis of combustion products as well as setting heat and material balance, were carried out. Comparative analysis of the results of experiments and calculations indicate satisfactory agreement between the model and experiment. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Furnace for biomass combustion - Comparison of model with experimental data",
volume = "55",
number = "15-16",
pages = "4312-4317",
doi = "10.1016/j.ijheatmasstransfer.2012.03.079"
}

Đurović, D. R., Nemoda, S., Dakić, D. V., Adžić, M. M.,& Repić, B.. (2012). Furnace for biomass combustion - Comparison of model with experimental data. in International Journal of Heat and Mass Transfer, 55(15-16), 4312-4317.
https://doi.org/10.1016/j.ijheatmasstransfer.2012.03.079

Đurović DR, Nemoda S, Dakić DV, Adžić MM, Repić B. Furnace for biomass combustion - Comparison of model with experimental data. in International Journal of Heat and Mass Transfer. 2012;55(15-16):4312-4317.
doi:10.1016/j.ijheatmasstransfer.2012.03.079 .

Đurović, Dejan R., Nemoda, Stevan, Dakić, Dragoljub V., Adžić, Miroljub M., Repić, Branislav, "Furnace for biomass combustion - Comparison of model with experimental data" in International Journal of Heat and Mass Transfer, 55, no. 15-16 (2012):4312-4317,
https://doi.org/10.1016/j.ijheatmasstransfer.2012.03.079 . .