ASSESSMENT OF A DOMESTIC HEAT-PUMP .2. COMPONENT AND FROSTING ANALYSIS

被引：3
作者：
COXSMITH, IR
CARRINGTON, CG
机构：
[1] Department of Physics, University of Otago, Dunedin
来源：
INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 1990年 / 14卷 / 01期
关键词：
Component performance; Frosting; Heat pump;
D O I：
10.1002/er.4440140105
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The performance of the heat exchangers of an unsophisticated air‐air heat pump are examined with particular emphasis on the evaporator frosting characteristics. The data relate to an operating domestic heat pump in Dunedin. Evaporator frosting reduces the seasonal COP by only a small amount (less than 1.7%) in this example but the defrost rate is shown to be very sensitive to small changes in the evaporator capacity. Thus frost formation generally has an important influence on the evaporator optimization calculation. The effectiveness of the expansion valve and of the defrost thermostat is also analysed, and particular opportunities for improving the system are identified. Copyright © 1990 John Wiley & Sons, Ltd
引用
收藏
页码：27 / 37
页数：11
相关论文
共 3 条
[1]  
Carrington C.G., Optimizing a heat pump for heating purposes, Int. J. of Energy Res, 2, pp. 153-170, (1978)
[2]  
Carrington C.G., Cox-Smith I.R., Assessment of a domestic heat pump 1: The house/heat‐pump interaction, Int. J. Energy Research, 13, pp. 673-686, (1989)
[3]  
Ito M., Kimura H., Senshu T., Development of high efficiency air‐cooled heat exchangers, Hitachi Review, 26, 10, pp. 323-326, (1977)
1