TY  - JOUR
AU  - Živković, Goran S.
AU  - Nemoda, Stevan
AU  - Stefanović, Predrag Lj.
AU  - Radovanovic, Predrag
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3861
AB  - One of the key requirements related to successful utilization of plasma technology as an oil-free backup system for coal ignition and combustion stabilization in power plant boilers is provision of properly regulated pulverized coal distribution to the feed ducts leading the fuel mixture to a burner. Proper regulation of coal distribution is deemed essential for achieving an adequate pulverized coal concentration in the zone where thermal plasma is being introduced The said can be efficiently achieved by installation of stationary louver in the coal-air mixing duct ahead of the feed ducts of a burner. The paper addresses numerical simulation of a two-phase flow of air-pulverized coal mixture in the mixing ducts, analysing the effects of particle size distribution on pulverized coal distribution to the burner feed ducts. Numerical simulation was performed rising the FLUENT 63 commercial code and related poly-dispersed flow module, based on the PSI-CELL approach. Numerical experiments have been performed assuming a mono-dispersed solid phase with particle diameter ranging from 45 mu m to 1200 mu m. Distance between the louver blades and the resulting effect on the flow profile was analysed as well. Results obtained indicate that the size of coal particles considerably influence the overall solid phase distribution. While fine particles, with diameters at the louver end of the above specified range, almost fully follow the streamlines of the continuous phase, coarser particles, which hit the louver blades, deflect towards the thermal plasma zone. In this manner, a desired phase concentration in the considered zone can be reached For the said reason, installation of stationary louver have been deemed a very efficient way to induce phase separation, primarily due to more pronounced impact of the installed louver on discrete phase flow then the impact on the flow of the continuous phase.
T2  - Thermal Science
T1  - Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner
VL  - 13
IS  - 4
SP  - 79
EP  - 90
DO  - 10.2298/TSCI0904079Z
ER  - 

@article{
author = "Živković, Goran S. and Nemoda, Stevan and Stefanović, Predrag Lj. and Radovanovic, Predrag",
year = "2009",
abstract = "One of the key requirements related to successful utilization of plasma technology as an oil-free backup system for coal ignition and combustion stabilization in power plant boilers is provision of properly regulated pulverized coal distribution to the feed ducts leading the fuel mixture to a burner. Proper regulation of coal distribution is deemed essential for achieving an adequate pulverized coal concentration in the zone where thermal plasma is being introduced The said can be efficiently achieved by installation of stationary louver in the coal-air mixing duct ahead of the feed ducts of a burner. The paper addresses numerical simulation of a two-phase flow of air-pulverized coal mixture in the mixing ducts, analysing the effects of particle size distribution on pulverized coal distribution to the burner feed ducts. Numerical simulation was performed rising the FLUENT 63 commercial code and related poly-dispersed flow module, based on the PSI-CELL approach. Numerical experiments have been performed assuming a mono-dispersed solid phase with particle diameter ranging from 45 mu m to 1200 mu m. Distance between the louver blades and the resulting effect on the flow profile was analysed as well. Results obtained indicate that the size of coal particles considerably influence the overall solid phase distribution. While fine particles, with diameters at the louver end of the above specified range, almost fully follow the streamlines of the continuous phase, coarser particles, which hit the louver blades, deflect towards the thermal plasma zone. In this manner, a desired phase concentration in the considered zone can be reached For the said reason, installation of stationary louver have been deemed a very efficient way to induce phase separation, primarily due to more pronounced impact of the installed louver on discrete phase flow then the impact on the flow of the continuous phase.",
journal = "Thermal Science",
title = "Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner",
volume = "13",
number = "4",
pages = "79-90",
doi = "10.2298/TSCI0904079Z"
}

Živković, G. S., Nemoda, S., Stefanović, P. Lj.,& Radovanovic, P.. (2009). Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner. in Thermal Science, 13(4), 79-90.
https://doi.org/10.2298/TSCI0904079Z

Živković GS, Nemoda S, Stefanović PL, Radovanovic P. Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner. in Thermal Science. 2009;13(4):79-90.
doi:10.2298/TSCI0904079Z .

Živković, Goran S., Nemoda, Stevan, Stefanović, Predrag Lj., Radovanovic, Predrag, "Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner" in Thermal Science, 13, no. 4 (2009):79-90,
https://doi.org/10.2298/TSCI0904079Z . .

TY  - JOUR
AU  - Jovanović, Marina P.
AU  - Afgan, Naim H.
AU  - Radovanovic, Predrag
AU  - Stevanović, Vladimir
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6801
AB  - Cities are the most important energy consumers of any country in all energy vector components. Nowadays, Belgrade as a cultural, educational, scientific, administrative, political, and business center of the region with its own structure of production, transportation, services, and urban system, represents significant consumer of different energy forms. Only useful and final energy is delivered to energy consuming sectors of a city. Simulation model MAED was used in this paper to estimate energy demand in city for a long time period. On the basis of energy demand forecast for three major energy consumers (sectors of household/service, industry, and transportation) until 2020, the sustainable development,scenarios of Belgrade energy system are developed (2005-2010, 2010-2015, 2015-2020). For each scenario, the energy systems of primary resources are determined so to satisfy the predicted differences in energy consumption for the mentioned time intervals until 2020. In this case different scenarios are evaluated. The evaluation of scenarios sustainability is obtained by method of multi-criteria analysis. Using energy indices for sustainable development, the following indices are taken into consideration for the assessment of scenario sustainability: economical, social, and environmental. The obtained results can be used by experts in decision-making process. (c) 2008 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Sustainable development of the Belgrade energy system
VL  - 34
IS  - 5
SP  - 532
EP  - 539
DO  - 10.1016/j.energy.2008.01.013
ER  - 

@article{
author = "Jovanović, Marina P. and Afgan, Naim H. and Radovanovic, Predrag and Stevanović, Vladimir",
year = "2009",
abstract = "Cities are the most important energy consumers of any country in all energy vector components. Nowadays, Belgrade as a cultural, educational, scientific, administrative, political, and business center of the region with its own structure of production, transportation, services, and urban system, represents significant consumer of different energy forms. Only useful and final energy is delivered to energy consuming sectors of a city. Simulation model MAED was used in this paper to estimate energy demand in city for a long time period. On the basis of energy demand forecast for three major energy consumers (sectors of household/service, industry, and transportation) until 2020, the sustainable development,scenarios of Belgrade energy system are developed (2005-2010, 2010-2015, 2015-2020). For each scenario, the energy systems of primary resources are determined so to satisfy the predicted differences in energy consumption for the mentioned time intervals until 2020. In this case different scenarios are evaluated. The evaluation of scenarios sustainability is obtained by method of multi-criteria analysis. Using energy indices for sustainable development, the following indices are taken into consideration for the assessment of scenario sustainability: economical, social, and environmental. The obtained results can be used by experts in decision-making process. (c) 2008 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Sustainable development of the Belgrade energy system",
volume = "34",
number = "5",
pages = "532-539",
doi = "10.1016/j.energy.2008.01.013"
}

Jovanović, M. P., Afgan, N. H., Radovanovic, P.,& Stevanović, V.. (2009). Sustainable development of the Belgrade energy system. in Energy, 34(5), 532-539.
https://doi.org/10.1016/j.energy.2008.01.013

Jovanović MP, Afgan NH, Radovanovic P, Stevanović V. Sustainable development of the Belgrade energy system. in Energy. 2009;34(5):532-539.
doi:10.1016/j.energy.2008.01.013 .

Jovanović, Marina P., Afgan, Naim H., Radovanovic, Predrag, Stevanović, Vladimir, "Sustainable development of the Belgrade energy system" in Energy, 34, no. 5 (2009):532-539,
https://doi.org/10.1016/j.energy.2008.01.013 . .