高校化学工程学报2018，Vol.32Issue(1)：77-83,7.DOI:10.3969/j.issn.1003-9015.2018.01.011
基于准二级压缩空气源热泵热水器的热力性能实验研究
Experimental Study on Thermodynamic Performance of Air Source Heat Pump Water Heaters Based on Quasi Two Stage Compression
摘要
Abstract
Heat transfer performance and heating efficiency of low temperature air-source heat pump water heaters (HPWT) (with quasi two stage compression and an intermediate economizer) were studied under different temperatures. Effects of temperatures on discharge temperature, back temperature, heating capacity, power consumption and coefficient of performance (COP) were investigated. The results show that heating capacity and COP of HPWT gradually reduce with the decrease of temperature. When the temperature changes from 20℃ to -15℃, the heat capacity and COP decrease by 64% and 54%, respectively. The heating time difference is over 3 times when heating 400 L cold water to 55℃. The COP value of HPWT is 1.80 when the outside temperature is -15℃, which is better than that of direct electric heating. These results may be applied for practical application of HPWT.关键词
准二级压缩/经济器/低温/空气源热泵热水器Key words
quasi two stage compression/economizer/low temperature/air source heat pump water heater分类
建筑与水利引用本文复制引用
尹应德,朱冬生,孙晋飞,唐壁奎,韦子杰,宁明均..基于准二级压缩空气源热泵热水器的热力性能实验研究[J].高校化学工程学报,2018,32(1):77-83,7.基金项目
广州市科技计划项目(201604016048) （201604016048）
中国南方智谷引进创新团队(顺府办函[2014]365号) （顺府办函[2014]365号）
佛山市科技创新项目(2016AG101083). （2016AG101083）
