《能源前沿(英文)》
>> 2010年
第4卷
第2期
doi:
10.1007/s11708-009-0056-3
Research articles
Performance analysis of an air-source heat pump
using an immersed water condenser
Department of Thermal
Science and Energy Engineering, University of Science and Technology
of China, Hefei 230026, China;
发布日期:
2010-06-05
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摘要
A distributed model of an air-source heat pump (ASHP) system and its experimental setup using an immersed water condenser were presented. Dynamic performance of the ASHP was then evaluated by both simulation and experiment. The results indicated that the system coefficient of performance (COP) decreased as the condenser temperature increased, ranging from 4.41 to 2.32 with the average COP equaling 3.29 during the experiment. Comparisons between simulation results and experimental measurements demonstrated that the model was able to yield satisfactory predictions. Furthermore, temperature profiles of the refrigerant in the evaporator and condenser were also given. This paper provides the theoretical and experimental background for ASHP system optimization and a valuable reference for a solar air-source heat pump water heater when the solar irradiation energy is insufficient on cloudy or rainy days.