Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace
Samo za registrovane korisnike
2012
Autori
Crnomarković, NenadSijerčić, Miroslav
Belošević, Srđan V.
Stanković, Branislav
Tucaković, Dragan
Živanović, Titoslav
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
A possibility of simplification of the scattering phase function of a pulverized coal flame was analyzed in the paper. It was showed that the type of radiation scattering of a pulverized coal flame is between two limiting cases: isotropic and forward scattering. A comprehensive mathematical model of a tangentially fired furnace by pulverized coal was formed. Radiative heat transfer was modeled using the six-flux model. Grid independent results of the numerical simulations were obtained. The mathematical model was verified by comparison of the results of numerical simulations with results of measurements. The influence of the type of radiation scattering on results of numerical simulation was analyzed through the relative and average differences of the gas-phase temperatures, the total radiation fluxes, and the absorbed wall fluxes of the left furnace wall. The investigation showed that the total radiation fluxes were considerably influenced by the type of radiation scattering. On the o...ther hand, the gas-phase temperatures and the absorbed wall fluxes were much less influenced by the type of radiation scattering. The results justify the use of the scattering phase function corresponding to isotropic scattering in radiation models of comprehensive mathematical models of pulverized coal fired furnaces.
Ključne reči:
Thermal radiation / Six-flux model / Radiation scattering / Pulverized coal / Numerical simulationIzvor:
Energy, 2012, 45, 1, 160-168Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Povećanje energetske i ekološke efikasnosti procesa u ložištu za ugljeni prah i optimizacija izlazne grejne površine energetskog parnog kotla primenom sopstvenih softverskih alata (RS-MESTD-Technological Development (TD or TR)-33018)
DOI: 10.1016/j.energy.2012.01.019
ISSN: 0360-5442
WoS: 000309243700019
Scopus: 2-s2.0-84865423793
Institucija/grupa
Inovacioni centarTY - JOUR AU - Crnomarković, Nenad AU - Sijerčić, Miroslav AU - Belošević, Srđan V. AU - Stanković, Branislav AU - Tucaković, Dragan AU - Živanović, Titoslav PY - 2012 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1510 AB - A possibility of simplification of the scattering phase function of a pulverized coal flame was analyzed in the paper. It was showed that the type of radiation scattering of a pulverized coal flame is between two limiting cases: isotropic and forward scattering. A comprehensive mathematical model of a tangentially fired furnace by pulverized coal was formed. Radiative heat transfer was modeled using the six-flux model. Grid independent results of the numerical simulations were obtained. The mathematical model was verified by comparison of the results of numerical simulations with results of measurements. The influence of the type of radiation scattering on results of numerical simulation was analyzed through the relative and average differences of the gas-phase temperatures, the total radiation fluxes, and the absorbed wall fluxes of the left furnace wall. The investigation showed that the total radiation fluxes were considerably influenced by the type of radiation scattering. On the other hand, the gas-phase temperatures and the absorbed wall fluxes were much less influenced by the type of radiation scattering. The results justify the use of the scattering phase function corresponding to isotropic scattering in radiation models of comprehensive mathematical models of pulverized coal fired furnaces. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Energy T1 - Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace EP - 168 IS - 1 SP - 160 VL - 45 DO - 10.1016/j.energy.2012.01.019 ER -
@article{ author = "Crnomarković, Nenad and Sijerčić, Miroslav and Belošević, Srđan V. and Stanković, Branislav and Tucaković, Dragan and Živanović, Titoslav", year = "2012", abstract = "A possibility of simplification of the scattering phase function of a pulverized coal flame was analyzed in the paper. It was showed that the type of radiation scattering of a pulverized coal flame is between two limiting cases: isotropic and forward scattering. A comprehensive mathematical model of a tangentially fired furnace by pulverized coal was formed. Radiative heat transfer was modeled using the six-flux model. Grid independent results of the numerical simulations were obtained. The mathematical model was verified by comparison of the results of numerical simulations with results of measurements. The influence of the type of radiation scattering on results of numerical simulation was analyzed through the relative and average differences of the gas-phase temperatures, the total radiation fluxes, and the absorbed wall fluxes of the left furnace wall. The investigation showed that the total radiation fluxes were considerably influenced by the type of radiation scattering. On the other hand, the gas-phase temperatures and the absorbed wall fluxes were much less influenced by the type of radiation scattering. The results justify the use of the scattering phase function corresponding to isotropic scattering in radiation models of comprehensive mathematical models of pulverized coal fired furnaces.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Energy", title = "Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace", pages = "168-160", number = "1", volume = "45", doi = "10.1016/j.energy.2012.01.019" }
Crnomarković, N., Sijerčić, M., Belošević, S. V., Stanković, B., Tucaković, D.,& Živanović, T.. (2012). Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace. in Energy Pergamon-Elsevier Science Ltd, Oxford., 45(1), 160-168. https://doi.org/10.1016/j.energy.2012.01.019
Crnomarković N, Sijerčić M, Belošević SV, Stanković B, Tucaković D, Živanović T. Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace. in Energy. 2012;45(1):160-168. doi:10.1016/j.energy.2012.01.019 .
Crnomarković, Nenad, Sijerčić, Miroslav, Belošević, Srđan V., Stanković, Branislav, Tucaković, Dragan, Živanović, Titoslav, "Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace" in Energy, 45, no. 1 (2012):160-168, https://doi.org/10.1016/j.energy.2012.01.019 . .