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	Investigation on the Pinch Point Position in Heat Exchangers
	Pan, L. S. and Shi, W. X.
	2016
关键词	pinch point position heat exchanger heat transfer phase transition supercritical condition organic rankine-cycle zeotropic refrigerant mixtures
中文摘要	To reach the target of smaller pressure drop and better heat transfer performance, packed beds with small tube-to-particle diameter ratio (D/d(p)<10) have now been considered in many areas. Fluid-to-wall heat transfer coefficient is an important factor determining the performance of this type of beds. In this work, local fluid-to-wall heat transfer characteristic in packed beds was studied by Computational Fluid Dynamics (CFD) at different Reynolds number for D/d(p)=1.5, 3.0 and 5.6. The results show that the fluid-to-wall heat transfer coefficient is oscillating along the bed with small tube-to-particle diameter ratio. Moreover, this phenomenon was explained by field synergy principle in detail. Two arrangement structures of particles in packed beds were recommended based on the synergy characteristic between flow and temperature fields. This study provides a new local understanding of fluid-to-wall heat transfer in packed beds with small tube-to-particle diameter ratio.
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/113079]
专题	工程热物理研究所_Journal of Thermal Science_期刊论文
作者单位	[Pan Lisheng] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. [Shi Weixiu] Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Engn, Beijing 100044, Peoples R China.
推荐引用方式 GB/T 7714	Pan, L. S. and Shi, W. X.. Investigation on the Pinch Point Position in Heat Exchangers[J],2016.
APA	Pan, L. S. and Shi, W. X..(2016).Investigation on the Pinch Point Position in Heat Exchangers..
MLA	Pan, L. S. and Shi, W. X.."Investigation on the Pinch Point Position in Heat Exchangers".(2016).

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