低温工况下冷风机结霜性能研究  

The study on air-cooler′s frosting performance in low temperature conditions

作　　者：贾楠[1] 吴兆林[1] 王明[1] 

机构地区：[1]上海理工大学制冷技术研究所,上海200093

出　　处：《低温与超导》2009年第7期59-61,68,共4页Cryogenics and Superconductivity

基　　金：上海市重点学科建设项目(S30503)资助

摘　　要：文中以冷风机为研究对象,首先对低温工况下冷风机的结霜性能进行理论分析,并建立数学模型;其次通过实验,分析了结霜对翅片管效率、空气侧平均换热系数和空气侧压降的影响。结果证明:数值计算的结果和实验测试结果基本吻合,从而证明了数学模型的正确性与可靠性。In this paper, an air- cooler is studied. The theoretical analyst study is the frosting performance, and mathematics mode is built to study the influences of the frosting period of fin - tube efficiency, the average heat transfer coefficient of air side and air - side pressure falling in low temperature conditions. The result of numerical calculation accords with the experimental test, and the results prove the the correctness and reliability of the mathematical model.

关 键 词：冷风机 低温工况 结霜 性能 

分 类 号：TB657.5[一般工业技术—制冷工程] TB657.1