应用于村镇住宅的太阳能复合热泵空调系统测试分析

Testing and Analysis on Solar Assisted Heat Pump Air-conditioning System Applied in Rural Residential Buildings

为了实现太阳能在村镇住宅建筑中的应用,可以将太阳能热水系统和地源热泵空调系统结合起来,满足村镇住宅建筑冬季供暖、夏季供冷以及生活热水需求。本文选取北京市房山区某村镇住宅的太阳能复合热泵空调系统,分别对其冬、夏季典型运行工况进行了现场测试。测试结果表明,冬季工况下,集热量可达46.4 kW,集热效率约为55%、总制热量为251.2 kW、COP约为5.83;夏季工况下,在太阳辐照度为750 W/m2时,集热效率为71.3%、总制热量为162.7 kW、制冷量为240.8 kW、COP约为3.58。最后,以测试结果为基础,对该太阳能复合热泵空调系统在村镇住宅建筑中的应用进行了节能、环保与经济性分析。

In order to realize the solar energy application in rural residential buildings,a solar assisted heat pump air-conditioning（SAHPA） system was introduced for heating,cooling and hot water supply.In this paper,a rural residential building with SAHPA system located in Beijing was selected as the research object.In typical operation conditions during winter and summer,the parameters of this system were tested.The results showed that in winter condition,the heat gain of solar collector was 46.4 kW,the thermal efficiency was 55%,the total heating capacity was 251.2 kW and COP was about 5.83.In summer condition with the solar radiation intensity was 750 W/m2,the thermal efficiency of solar collector was 71.3%,the total heating and cooling capacities were of 162.7 kW and 240.8 kW respectively,and COP was about 3.58.At last,according to test results,the energy consumption,environmental impact and life-cycle cost of SAHPA system were analyzed.