户用光伏交流冰箱系统的性能研究

The Performance Research on the Domestic Photovoltaic-AC-refrigerator

针对昆明地区户用光伏交流冰箱系统的工作特性进行了实验研究,在不同天气条件下对所构建的系统性能进行了测试,测试结果表明,该系统冰箱的冷冻室最低温度可达-22℃,冷藏室温度为0~7℃,在晴天和多云天气情况下,系统带3kg水时制冷系数COP分别为0.08、0.05,系统带8kg负载时制冷系数COP分别为0.28、0.23;在阴雨天气情况下,蓄电池单独向系统供电可保证系统连续工作3d.该光伏冰箱系统在昆明地区运行稳定,并为户用光伏交流冰箱系统性能的进一步优化提供了依据.

The operating performances for the domestic photovoltaic AC refrigerator were studied. The operating characteristics of established experimental system were measured in different weathers. The results showed that the lowest temperature of refrigerator＇s freeze could be reached at-20℃ and the average temperature of storage was from 0℃ to 7℃. The COP （coefficient of performance） of established system was 0.32 and 0. 28 respectively in sunny and rainy days. The running rates of refrigerator were 27% and 32% respectively. The battery of the es tablished system could supply enough power for the refrigerator with 3 rainy days continuously. The operating performance of the photovoltaic AC refrigerator is stable in Kunming. All these works could offer some valuable references to the optimized design for photovoltaic AC refrigerator in the further.