Effects of operational parameters on emission performance and combustion efficiency in small-scale CFBCs

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dc.authorid0000-0002-4245-7741
dc.contributor.authorGungor, Afsin
dc.contributor.authorEskin, Nurdil
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2008
dc.departmentNiğde ÖHÜ
dc.description.abstractA well-designed CFBC can burn coal with high efficiency and within acceptable levels of gaseous emission. In this theoretical study effects of operational parameters on combustion efficiency and the pollutants emitted have been estimated using a developed dynamic 2D (tow-dimensional) model for CFBCs. Model simulations have been carried out to examine the effect of different operational parameters such as excess air and gas inlet pressure and coal particle size on bed temperature, the overall CO, NO(x) and SO(2) emissions and combustion efficiency from a small-scale CFBC. It has been observed that increasing excess air ratio causes fluidized bed temperature decrease and CO emission increase. Coal particle size has more significant effect on CO emissions than the gas inlet pressure all the entrance to fluidized bed. Increasing excess air ratio leads to decreasing SO(2) and NO(x) emissions. The gas inlet pressure at the entrance to fluidized bed has a more significant effect on NO(x) emission than the coal particle size. Increasing excess air causes decreasing combustion efficiency. The gas inlet pressure has more pronounced effect on combustion efficiency than the coal particle size, particularly at higher excess air ratios. The developed model is also validated in terms of combustion efficiency with experimental literature data obtained from 300 kW laboratory scale test unit. The present theoretical study also confirms that CFB combustion allows clean and efficient combustion of coal. (C) 2008 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jcice.2008.05.007
dc.identifier.endpage556
dc.identifier.issn0368-1653
dc.identifier.issue6
dc.identifier.scopus2-s2.0-57649177388
dc.identifier.scopusqualityN/A
dc.identifier.startpage541
dc.identifier.urihttps://dx.doi.org/10.1016/j.jcice.2008.05.007
dc.identifier.urihttps://hdl.handle.net/11480/5189
dc.identifier.volume39
dc.identifier.wosWOS:000260915800001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherCHINESE INST CHEMICAL ENGINEER
dc.relation.ispartofJOURNAL OF THE CHINESE INSTITUTE OF CHEMICAL ENGINEERS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCirculating fluidized bed
dc.subjectModeling
dc.subjectCoal combustion
dc.subjectCombustion efficiency
dc.subjectEmission performance
dc.titleEffects of operational parameters on emission performance and combustion efficiency in small-scale CFBCs
dc.typeArticle

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