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Numerical Study of the Effects of Oxygen Concentration and Fuel Jet Velocity on Thermal Radiation in Methane and Propane Turbulent Diffusion Flames
Wu, Long1; Kobayashi, Noriyuki1; Li, Zhanyong2; Huang, Hongyu3
2015-09-01
Source PublicationCANADIAN JOURNAL OF CHEMICAL ENGINEERING
Volume93Issue:9Pages:1567-1576
AbstractThermal radiation is an important mode in combustion and plays a key role in improving energy efficiency and reducing the formation of pollutants in industrial combustion systems. This paper describes the effects of oxygen concentration and fuel (methane and propane) jet velocity on thermal radiation in turbulent diffusion flames via numerical evaluation, using a detailed gas-phase reaction mechanism consisting of 36 species and 219 elementary reactions with the discrete ordinates method. The predictions show close agreement with the experimental results in literature. Specifically, the radiative heat transfer flux and radiation fraction of propane flames were larger than those of methane flames at the same input power because of the increased soot yield in propane flames. In both methane and propane flames, thermal radiation generally increased with oxygen concentration, while at higher oxygen concentrations the degree of radiation increase was lower. Because of the promotion of soot oxidation at higher fuel velocities, the radiant fractions were lower than at lower fuel velocities.
SubtypeArticle
KeywordThermal Radiation Methane Propane Flames Turbulent Diffusion Flame Oxygen Concentration
WOS HeadingsScience & Technology ; Technology
DOI10.1002/cjce.22256
WOS Subject ExtendedEngineering
WOS KeywordGAS-FIRED FURNACES ; SOOT FORMATION ; HEAT-TRANSFER ; MODELS ; TEMPERATURE ; PREDICTIONS ; EMISSION ; INDEX
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical
WOS IDWOS:000359706700010
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10848
Collection中国科学院广州能源研究所
Affiliation1.Nagoya Univ, Dept Chem Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
2.Tianjin Univ Sci & Technol, Coll Mech Engn, Tianjin 300222, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Wu, Long,Kobayashi, Noriyuki,Li, Zhanyong,et al. Numerical Study of the Effects of Oxygen Concentration and Fuel Jet Velocity on Thermal Radiation in Methane and Propane Turbulent Diffusion Flames[J]. CANADIAN JOURNAL OF CHEMICAL ENGINEERING,2015,93(9):1567-1576.
APA Wu, Long,Kobayashi, Noriyuki,Li, Zhanyong,&Huang, Hongyu.(2015).Numerical Study of the Effects of Oxygen Concentration and Fuel Jet Velocity on Thermal Radiation in Methane and Propane Turbulent Diffusion Flames.CANADIAN JOURNAL OF CHEMICAL ENGINEERING,93(9),1567-1576.
MLA Wu, Long,et al."Numerical Study of the Effects of Oxygen Concentration and Fuel Jet Velocity on Thermal Radiation in Methane and Propane Turbulent Diffusion Flames".CANADIAN JOURNAL OF CHEMICAL ENGINEERING 93.9(2015):1567-1576.
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