化工学报2018，Vol.69Issue(6)：2646-2654,9.DOI:10.11949/j.issn.0438-1157.20171277
新型空气-水双热源复合热泵系统除霜特性及能耗
Defrosting characteristics and energy consumption of new air-water dual source composite heat pump system
摘要
Abstract
Based on the operation testing of new air-water double source composite heat pump system (AWDSHPS-N), three defrosting modes were investigated under the same ambient condition, which included the condenser outlet refrigerant recooling defrosting(D-I), the low temperature-hot water defrosting(D-II), the condenser outlet refrigerant recooling and low temperature-hot water defrosting at same time (D-Ⅲ). Total coefficient of performance (COP) of AWDSHPS-N was used to evaluate the influence of the three modes. The influence on the total COP, defrosting operating characteristics and energy consumption of D-I, D-II and D-Ⅲwere discussed and compared with those in the reverse-cycle defrosting mode, under the same ambient condition. The results of test conditions indicated that for D-I and D-II, the total COP can be decreased by 0.42% and 3.93%, respectively, compared with the COP of frosting period. The heating power and COP during D-II defrosting were 27.4% and 17.8% higher than those of frosting operation, respectively. The total COP of AWDSHPS-N choosing D-I, D-II and D-Ⅲ were 26.06%, 29.79% and 17.02% higher than that of verse-cycle defrosting, and the defrosting energy consumption of D-I, D-II and D-Ⅲ were only 3.11%, 34.78% and 28.26% of the reverse-cycle defrosting energy consumption.关键词
复合热泵/再生能源/除霜/性能系数/优化/压缩机Key words
composite heat pump/renewable energy/defrosting/coefficient of performance/optimization/compressor分类
能源科技引用本文复制引用
徐俊芳,赵耀华,全贞花,王会粉,赵会刚,王皆腾..新型空气-水双热源复合热泵系统除霜特性及能耗[J].化工学报,2018,69(6):2646-2654,9.基金项目
国家科技支撑计划项目(2012BAA13B02).supported by the National Key Technology Research and Development Program of China(2012BAA13B02). （2012BAA13B02）
