基于相变储能的太阳能空气源热泵系统的研究

Research of solar air source heat pump system based on phase change energy storage

针对由天气变化导致太阳能利用不稳定和寒冷地区热泵性能低的问题,文章介绍了一种基于相变储能的太阳能空气源热泵系统,该系统能够根据气象情况灵活切换4种供暖模式,大大减少了系统耗电量。文章通过独特设计的储能冷凝器,不仅可以调节太阳能空气源热泵系统能量分配,改善太阳能空气源热泵系统制热量和建筑热负荷之间不平衡的供需关系、提高太阳能利用率,还可以提高空气源热泵低温性能,快速恢复供暖,从而实现提高太阳能空气源热泵系统整体性能的目的。文章以石家庄农村某户为研究对象进行研究,研究结果表明,太阳能空气源热泵系统供暖效果较好,太阳能空气源热泵系统COP最大值为5.19,节能环保效益十分明显。

Aiming at the problem of solar energy instability caused by weather and low heat pump performance in cold regions,this paper introduces a solar energy air source heat pump system based on phase change energy storage.It can flexibly switch four heating modes according to weather conditions,greatly reducing power consumption.The uniquely designed energy storage condenser can not only adjust the energy distribution of the system,improve the unbalanced supply-demand relationship between system heating and building heat load,improve solar energy utilization,but also improve the low-temperature performance of air-source heat pumps and quickly restore heating.So as to achieve the purpose of improving the overall performance of the system.Taking a household in Shijiazhuang countryside as the research object,the operation results show that the system COP value is much higher than other heating methods,and the energy saving and environmental protection benefits are very obvious.