摘要
二氧化碳因其具有良好的环境性能及其在跨临界循环运行下所具有的独特热力学优势,一直是制冷、空调、热泵行业的研究热点。为了研究二氧化碳跨临界循环热泵热水器的系统运行特性,项目组设计并搭建了水源型二氧化碳热泵热水器测试系统,测试了在不同气冷器进、出水温度,不同蒸发器进水温度及不同电子膨胀阀开度下,系统运行时性能系数(COP)、制热量及制冷量的变化值,初步掌握了二氧化碳跨临界循环热泵热水器系统的运行特性。
CO_2 is one of the research focuses in the refrigeration,air conditioning and heat pump fields due to its environmental protection and unique thermodynamic properties in transcritical cycle.In order to investigate the operation characteristics of CO_2 transcritical cycle,a water-source CO_2 heat pump water heater was design and the influence of gas cooler water inlet and outlet temperature,evaporator water inlet temperature and electronic expansion valve opening on the system performance such as COP,heating power and cooling power was measured,preliminary obtain the operating characteristics of the CO_2 transcritical heat pump water heater system.
出处
《节能》
2016年第1期31-34,3,共4页
Energy Conservation
关键词
二氧化碳
热泵
跨临界
运行
CO2
heat pump
step critical
transcritical
