流体机械2012，Vol.40Issue(4)：73-76,48,5.DOI:10.3969/j.issn.1005-0329.2012.04.017
直流变频跨临界CO2热泵热水器的性能试验研究
Performance Study of DC Inverted Frequency Air-source Heat Pump Water Heater with Trans-critical CO2 Cycle
摘要
Abstract
In the study of responding to the global wanning and the progress in efficient and environmental alternative refrigerants, the trans - critical CO2 cycle presents undeniable attention. A DC inverted frequency air - source heat pump water heater system with trans - critical CO2 cycle was built. The performance of this system was measured and analyzed by varying the compressor frequency, EEV opening, and incoming water flow rate under the optimum refrigerant charge of 0. 880 kg. The results show that, the outlet water can reach 65℃, or even more and the corresponding discharge pressure is 9.5MPa, the unit works in the trans - critical cycle. In the premise of satisfying the user's asked of the outlet water temperature , the system should match the compressor frequency, water flow rate and EEV opening reasonably to achieve high efficiency.关键词
CO2跨临界循环/空气源热泵热水器/直流变频/性能研究Key words
trans - critical CO2 cycle/air - source heat pump water heater/DC inverted frequency/ performance study分类
通用工业技术引用本文复制引用
朱丽霞,张华,王艳庭,刘业凤..直流变频跨临界CO2热泵热水器的性能试验研究[J].流体机械,2012,40(4):73-76,48,5.基金项目
上海市重点学科建设(编号:S30503) （编号:S30503）
