A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes

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	A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes
其他题名	A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes
	Zhang Weijun; Yi Zhi; Chen Haigeng
	2014
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
卷号	21 期号:4 页码:419-426
摘要	When solving the complex radiative heat transfer problems in reheating furnaces, there are a number of difficulties with the traditional zonal methods. To circumvent these difficulties, a new simplified method was proposed, which employed imaginary planes, referred to as the imaginary plane model. With the new model, crown wall reduction process was simplified. Therefore, every model zone could be treated as a closed square cavity. It could also solve the problem of radiative blocking in industrial furnaces more effectively. Besides, the new imaginary plane based model may lead to a problem that the denominator was zero. This problem was solved by transforming the expressions of reflex heat flux in the model. The model was capable of dealing with the systems that included black surfaces. The model was validated by considering the heat transfer in a reheating furnace where the temperature fields in the furnace chamber (including the steel, wall and gas) were obtained. A detailed comparison was made between the simulation and the black box experiment. The results show that the new model developed was valid and accurate.
其他摘要	When solving the complex radiative heat transfer problems in reheating furnaces, there are a number of difficulties with the traditional zonal methods. To circumvent these difficulties, a new simplified method was proposed, which employed imaginary planes, referred to as the imaginary plane model. With the new model, crown wall reduction process was simplified. Therefore, every model zone could be treated as a closed square cavity. It could also solve the problem of radiative blocking in industrial furnaces more effectively. Besides, the new imaginary plane based model may lead to a problem that the denominator was zero. This problem was solved by transforming the expressions of reflex heat flux in the model. The model was capable of dealing with the systems that included black surfaces. The model was validated by considering the heat transfer in a reheating furnace where the temperature fields in the furnace chamber (including the steel, wall and gas) were obtained. A detailed comparison was made between the simulation and the black box experiment. The results show that the new model developed was valid and accurate.
关键词	imaginary plane zonal method crown wall reduction total radiative exchange area
收录类别	CSCD
语种	英语
资助项目	[National High Technology Research and Development Program (863 Program) of China]
CSCD记录号	CSCD:5123725
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/155898
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhang Weijun,Yi Zhi,Chen Haigeng. A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2014,21(4):419-426.
APA	Zhang Weijun,Yi Zhi,&Chen Haigeng.(2014).A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,21(4),419-426.
MLA	Zhang Weijun,et al."A New Simplified Zonal Method for Furnace Thermal Radiation Calculation Based on Imaginary Planes".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 21.4(2014):419-426.