RESEARCH ON HEAT TRANSFER ENHANCEMENT OF EVAPORATOR DUE TO FROSTING IN AIR-SOURCE HEAT PUMP DURING THE INITIAL STAGE OF FROSTING

作     者：Huang Xinwei Wang RuixiangDepartment of Urban ConstructiontBeijing Institute of Civil Engineering and Architecture No. 1 Zhanlan Guan Road Beijing 100044 Beijing China 

会议名称：《第四届压缩机与制冷国际会议》

会议日期：2003年

学科分类：080705[工学-制冷及低温工程] 08[工学] 0807[工学-动力工程及工程热物理] 

关 键 词：the initial stage of frosting sublimation latent heat heat transfer enhancement critical point 

摘      要：正By analyzing the heat transfer characteristics oj jrosting, the model of computing heat transfer volume through the evaporator surface in air-source heat pump during the initial stage of frosting is set up. The increase ratio of heat transfer volume through the evaporator surface due to frosting is computed. And the critical point and its state parameters are found. So the frosting problem of the evaporator will be solved better bv controlling and utilizing the heat transfer enhancing of frost during the initial stage of frosting.