不同波纹比例新型板式换热器的传热、阻力特性及分析  

Heat transfer and resistance characteristics and exergy analysis of new-type plate heat exchanges with different corrugation ratios

作　　者：郭春生[1] 程林[1] 杜文静[1] 

机构地区：[1]山东大学热科学与工程研究中心,山东济南250061

出　　处：《中国石油大学学报（自然科学版）》2012年第2期163-167,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家'973'计划项目(2007CB206900);国家自然科学基金青年科学基金项目(51106090)

摘　　要：通过三维CFD数值模拟软件ANSYS-CFX模拟优化4种波纹板式换热器,计算区域为1-1程的三流道板式换热器包括进出口段和倒流区段。数值计算结果表明,Φ=60°的新型板式换热器比Φ=60°的人字形板式换热器的努塞尔数高约15%,摩擦阻力系数低约10%,综合性能提高约20%,其中波纹比例系数为3∶1的板片的综合性能最优。Four kinds of corrugated plate heat exchangers（PHE） were simulated applying three-dimensional CFD software——ANSYS-CFX.Three-flows plate heat exchanger whose computational domain is 1-1 process,includes import and export segment and reflux section.The results from numerical simulations show that Nusselt number of the working fluid in new-type PHE with Φ=60°,compared with the chevron-type one,is increased by 15%,the flow resistance is decreased by 10%,and the performance evaluation criteria is increased by 20%.The plate with corrugation ratio of 3∶1 is better than any other type.

关 键 词：板式换热器 传热 阻力 损失 

分 类 号：TK124[动力工程及工程热物理—工程热物理]