Experimental Research on Flow Maldistribution in Plate-Fin Heat Exchangers

作     者：张哲 厉彦忠 许箐 ZHANG Zhe;LI Yanzhong;XU Qing

作者机构：School of Energy and Power Engineering Xi'an Jiaotong University Xi'an 710049 China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2004年第12卷第1期

页      面：7-13页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

基　　金：Supported by the Doctoral Foundation of Xi'an Jiaotong University (No. DFXJTU2002-12) the Foundation for Excellent Doctoral Dissertation Author by Minister of Education, China (No. 199933) 

主　　题：plate-fin heat exchanger flow distribution inlet configuration 

摘      要：The flow maldistribution and the effect of different inlet configuration on the flow distribution in platefin heat exchangers were studied experimentally. It is found that the flow maldistribution is serious because of the defects of inlet configurations, while the inlet configuration and Reynolds number are the main factors affecting the flow distribution. The improved inlet configurations, which are the header with a two-stage distributing configuration and the guide vane with a fluid complementary cavity were proposed and tested in this paper. The experimental results show that the improved inlet configurations can effectively improve the performance of flow distribution in heat exchangers.