PFRFORMANCE OF EVAPORATOR FOR HEAT PUMP UNDER FROSTING CONDITION
The present study investigated the performance of an evaporator for the heat pump under frosting condition. The size of all evaporators was 400×250×12.7 mm (W×H×D). Key experimental parameters were fin type (plate and slit fin), fin pitch (1.3, 1.4 and 1.5 mm) and the face velocity of air (0.5, 1.0, 1.5 and 2.0m/s). The ethylene glycol-water mixture was used as a refrigerant. The test was done in a phychrometric calorimeter chamber.Heat transfer rate of refrigerant, air side pressure drop and enhancement factor were presented with respect to the frosting time. The air side pressure drop and the heat transfer rate of the evaporator with slit fin was higher than plate fin. The air side pressure drop was increased as the fin pitch was decreased and the face velocity of air was increased. The heat transfer rate was increased at the beginging of the test as the fin pitch of the evaporator was decreased. As the frost was accumulated, the heat transfer rate was increased as the fin pitch of the evaporator was increased.
Sunghong Shin Yongbin Im Gaku Hayase Sungkwan Park Jeunghoon Kim Keumnam Cho
Graduate school, Sungkyunkwan University, 300 Chunchun-dong, Changan-ku,Suwon, 440-746, Republic of System Appliances Division, Samsung Electronics Co., Ltd, 416 Maetan-3dong, Yeongtong-ku,Suwon, 443- School of Mechanical Engineering, Sungkyunkwan University, 300 Chunchun-dong, Changan-ku,Suwon, 440-
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）