太阳能季节性相变蓄热热泵系统在哈尔滨应用的模拟研究
Simulation of a heat pump heating system based on seasonal solar energy storage by phase change material used in Harbin
摘要：
介绍了该系统的原理、组成部分及运行模式。建立了系统数学模型。以CaCl2·6H2O作为相变蓄热材料，以哈尔滨地区应用该系统的某别墅为例，对不同太阳能集热器面积和蓄热体积下的集热量、蓄热装置换热流体进出口温度、相变材料平均温度及蓄热装置散热损失进行了模拟与分析。结果表明，当太阳能集热器面积与蓄热体积匹配合适时，使用较小面积的太阳能集热器集得的热量就可满足建筑物的热负荷需求。
Abstract：
Presents the principle, the components and the operation modes of the system. Develops a mathematic model of the system. Simulates and analyses the heat energy collected by the solar collector, the inlet and outlet temperatures of heat transfer fluid in the energy storage tank, the mean temperature of the phase change material(PCM) and the heat losses from the energy storage tank under different combinations of the collector area and the storage volume for the system with PCM of CaCl2·6H2O applied to a villa in Harbin area. The results indicate that the energy collected by smaller solar collectors could be sufficient for the heat load of a building when the collector area and the storage volume are optimally matched.
Keywords:solar energy, seasonal energy storage by phase change material, heat pump, collector area, storage volume