Effect of Velocity Distribution Asymmetry on the Heat Transfer Performance of Heat Exchangers

Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (2): 1-3.

Effect of Velocity Distribution Asymmetry on the Heat Transfer Performance of Heat Exchangers

Deng Xian-he Wang Yang-jun Huang De-bin Zhang Ya-jun

Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education South China Univ．of Tech．Guangzhou510640GuangdongChina

Received:2003-06-19 Online:2004-02-20 Published:2015-09-07
Contact: 邓先和（1955－）男教授博士生导师主要从事强化传热的研究。 E-mail:cexhdeng＠scut.edu.cn
About author:邓先和（1955－）男教授博士生导师主要从事强化传热的研究。

Abstract

Abstract:

A mathematical model of the effect of velocity distribution asymmetry in heat exchanger channels on the heat transfer performance was formulated．The deviation of heat transfer duty in heat exchangers caused by the asymmetry was investigated when the fluid flowed inside the tubes or across the tube bundles．Research results indicate that the effect of velocity distribution asymmetry in exchanger channels on the heat transfer performance is not great．The deviation of heat transfer duty inside the tubes and across the tube bundles are both less than1％ when the velocity difference reaches100％ at uniform wall temperature and without heat transfer among channels．

Key words: heat exchanger, velocity distribution, heat duty, heat transfer performance

CLC Number:

Deng Xian-he, Wang Yang-jun, Huang De-bin, et al. Effect of Velocity Distribution Asymmetry on the Heat Transfer Performance of Heat Exchangers[J]. Journal of South China University of Technology(Natural Science Edition), 2004, 32(2): 1-3.

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Effect of Velocity Distribution Asymmetry on the Heat Transfer Performance of Heat Exchangers

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