蓄热除霜空调系统中蓄热材料的选型分析

摘要

蓄热除霜技术可大幅度降低压缩机做功及室内侧换热器从供热环境吸热这两部分热量占除霜总热量的比值，实现热泵系统的连续制热功能。而蓄热材料的合理选择是决定蓄热除霜技术实现的关键。本文从理论分析以及实验对比测试分析得出：复合相变蓄热材料（如：膨胀石墨/石蜡复合相变材料）最适合在蓄热除霜空调系统中应用。%Thermal storage defrosting technology can significantly reduce the compressor power and the indoor heat exchanger from ambient heat absorbing two parts accounted for the ratio of defrost total calories. It can achieve con-tinuous heating function in heat pump system. And choosing suitable storage material is the key to determine the heat storage defrosting technology. According to the theoretical analysis and experimental comparison test analysis results, this paper points out that composite phase thermal storage change material is most suitable for applications in thermal storage defrost air conditioning system.