带热管的板式空气-空气换热器工作特性实验研究  

Experimental Study on Operation Characteristics of Plate Heat Exchanger Coupled with Heat Pipe

作　　者：薛连政 马国远[1] 周峰[1] 晏祥慧[1] 姜明健[1] Xue Lianzheng;Ma Guoyuan;Zhou Feng;Yan Xianghui;Jiang Mingjian(College of Environmental and Energy Engineering,Beijing University of Technology,Beijing,100124)

机构地区：[1]北京工业大学环境与能源工程学院

出　　处：《制冷与空调（四川）》2019年第4期343-350,共8页Refrigeration and Air Conditioning

基　　金：国家重点研发计划(2016YFB0601601);国家自然科学基金(51776004)

摘　　要：提出一种用于能量回收的带热管的板式空气-空气换热器,换热器芯体内部纵向排列12根相互独立的环路热管,板间L型密封将换热器分为内、外两个循环,2台离心风机组织室内外空气通过通道层间的波纹板进行逆向C形流动换热。搭建了换热器性能测试平台,针对冬季工况和夏季工况,对换热器的温度效率、换热量与能效比进行了研究,进一步分析了2种不同工质的热管对换热器性能的影响。结果表明:冬季工况和夏季工况换热器的换热量、EER随室内外温差的增大而增大,冬季工况最高温度效率达到62%,夏季工况最高温度效率达到70%,当环路热管内工质为R32时,对换热器在冬、夏季工况的换热性能均有提升。分析计算了哈尔滨、北京、上海、广州四座典型城市使用该换热器全年EER分别为12.72、7.70、5.75、3.67。This paper presents plate heat exchanger coupled with heat pipe what vertically arranged 12 independent loop heat pipes inside the core for energy recovery.The L type seal between the plate fins divides the heat exchanger into two cycles,inner and outer,and two sets of centrifugal fans on the inner and outer circulation side.Indoor and outdoor air passes through the plate between the channel layers to perform reversed C flow heat exchange.For the winter conditions and summer conditions,an experimental study was conducted on the effect of the heat transfer performance of the heat exchanger with different refrigerants.The indoor and outdoor temperature difference and the kind of refrigerants in the loop heat pipe were analyzed to show the way of affection on the temperature efficiency,heat transfer capacity,and energy efficiency ratio(EER).The results show that the heat transfer capacity and EER of the heat exchanger increase with the increase of indoor and outdoor temperature difference in winter and summer conditions,the maximum temperature efficiency in winter conditions reaches 60%,and the maximum temperature efficiency in summer conditions reaches 70%.When the loop heat pipe working medium is R32,the heat exchange performance of the heat exchanger in winter and summer conditions are improved.The analysis and calculation of the annual EER of the heat exchanger for four typical cities in Harbin,Beijing,Shanghai and Guangzhou are 12.72,7.70,5.75,3.67 respectively.

关 键 词：能量回收 板式空气-空气换热器 热管 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]