室外翅片管换热器的设计对空气源燃气机热泵系统性能的影响  

Influence of the Design of an Outdoor Finned Tube Heat Exchanger on the Performance of Its Air Source Gas Engine Heat-pump System

作　　者：陈轶光[1] 杨昭[1] 

机构地区：[1]天津大学热能研究所,天津300090

出　　处：《热能动力工程》2011年第1期13-19,118-119,共7页Journal of Engineering for Thermal Energy and Power

基　　金：国家高技术研究发展计划(863计划)基金资助项目(2007AA05Z223);天津市科技支撑基金资助项目(07ZCGYSF02600;07ZCGYSF01500);教育部博士点基金资助项目(200800560041)

摘　　要：研究了翅片管换热器的流路布置和支路数对空气源燃气机热泵系统性能的影响,研究结果表明:采用逆交叉流的流程布置方式空气源燃气机热泵的性能最好,而采用顺流的流程布置方式最差,与顺流相比,采用逆交叉流的流程布置方式空气源燃气机热泵性能提高了10%左右。翅片管换热器支路数采用14路比采用7路时空气源燃气机热泵性能提高了7%左右。因此,翅片管换热器的设计对空气源燃气机热泵系统性能有较大的影响,合理设计翅片管换热器对提高空气源燃气机热泵的性能起到了一定的作用。Studied was the influence of the flow path arrangement and number of branch lines in a finned tube heat exchanger on the performance of its air-source gas engine heat-pump system.The research results show that when a reverse cross flow path arrangement mode is adopted,the air-source gas engine heat pump will obtain the best performance,while that adopting a positive flow path arrangement mode will result in the worst.Compared with the direct flow path arrangement mode,the above-mentioned performance can increase by about 10% when the reverse cross flow path arrangement mode is adopted.The foregoing performance adopting 14 branch lines for a finned tube heat exchanger will increase by about 7% when compared with that adopting 7 branch lines.Therefore,the design of a finned tube heat exchange has a relatively big influence on the performance in question and a rational design of the finned tube heat exchange can play a definite role in enhancing the performance under discussion.

关 键 词：空气源燃气机热泵 流路布置 支路数 系统性能 

分 类 号：TK124[动力工程及工程热物理—工程热物理]