小型分体式空气源热泵除霜能耗来源分析与计算

Analysis and calculation of defrosting energy source for small split air source heat pump

针对分体式空气源热泵逆循环除霜的特点,对其除霜能量来源特性进行了分析,并对各部分能量的计算方法做了介绍,分析表明空气源热泵除霜时压缩机作功、室内侧换热器翅片管贮存的热量、翅片管与室内环境自然对流换热吸热等三部分为除霜能量的主要来源。

Based on the characteristic of reverse cycle defrosting for the split air source heat pump,the defrosting energy source characteristics are analyzed and introduce the method for calculating each part of the energy. The experiment shows that the compressor work,the indoor side heat exchanger fin-tube stored energy and the natural convection heat transfer between indoor environment and the fin-tube are the main sources of defrosting.