平行流热管换热器传热性能实验研究  

Experimental Research on Heat Transfer Performance of Parallel Flow Heat Pipe Exchangers

作　　者：沈超[1] 杨绍伦 张东伟[2] 余鹏[1] 杨建中[1] SHEN Chao;YANG Shao-Lun;ZHANG Dong-Wei;YU Peng;YANG Jian-Zhong(School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China;Research Center on the Technology and Equipments for Energy Saying in Thermal Energy System of MOE School of Chemical Engineering and Energy, Zhengzhou University Zhengzhou, Henan 450001, China)

机构地区：[1]郑州大学土木工程学院,郑州450001 [2]郑州大学化工与能源学院热能系统节能技术与装备教育部工程研究中心,郑州450001

出　　处：《工程热物理学报》2018年第6期1339-1343,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No.51706208);河南省科技厅基础与前沿研究计划项目(No.152300410042);河南省科技厅科技攻关项目(No.152102210035)

摘　　要：平行流热管换热器综合了热管轴向高效换热和平行流换热器管外高效换热的优点,是一种新型的重力热管换热器。本文基于传热风洞对充注R600A的平行流热管换热器进行传热和流动性能测试。实验中平行流热管换热器的热阻最小仅为0.06 K.W^(-1),换热效率在95%～98%之间;平行流热管换热器的均温性和换热效率受到其管径较小引起的脉动现象影响,冷凝段温度分布出现分层现象。实验结果为平行流热管换热器的优化设计提供了参考依据。As a new type of gravity heat pipe heat exchanger, parallel flow heat pipe exchanger combines the advantages of high heat transfer efficiencies of heat pipe and the tube of parallel flow heat exchanger. In this work, the heat transfer and flow performance of a parallel flow heat pipe exchanger filled with R600A was tested in the heat transfer wind tunnel. In the experiment, the minimum heat resistance of the parallel flow heat pipe heat exchanger is only 0.06 K·W^（-1）, and the heat transfer efficiency is between 95%～98%. Due to the fluctuation of the temperature uniformity and heat transfer efficiency influenced by the smaller diameter, the temperature distribution in condensing section was layered in the pipe. The experimental results provide a reference for the optimization design of parallel heat pipe exchanger.

关 键 词：平行流热管 换热器 传热与流动 

分 类 号：TK124[动力工程及工程热物理—工程热物理]