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提出一种新型集热/蓄能/蒸发一体化太阳能热泵热水器,搭建实验测试装置,对蓄能材料分别为水、癸酸、石蜡时的太阳能集热/蓄能/蒸发器的蓄能特性和集热总效率进行研究,并在南京地区春季典型工况下,对蓄能材料为癸酸和石蜡的SHPWHICSE系统性能系数进行研究对比。研究结果表明:相变材料比水有更好的集热效果;由于石蜡的比热容大,其集热总效率大于癸酸,采用石蜡的SHPWHICSE系统性能在各种实验条件下均高于采用癸酸的SHPWHICSE系统。
A new type of solar energy heat pump water heater with integrated heat / energy storage / evaporation is put forward to build an experimental test device. The energy storage characteristics of solar energy heat storage / evaporator when the energy storage materials are water, capric acid and paraffin, respectively, The total efficiency of heat collection was studied. The performance coefficient of SHPWHICSE system with capric acid and paraffin as energy storage material was studied and compared under typical spring conditions in Nanjing. The results show that the phase change material has a better heat collecting effect than water. Because of the large specific heat capacity of paraffin, the total heat collecting efficiency is higher than that of capric acid. The performance of SHPWHICSE system with paraffin wax is higher under all experimental conditions than that using capric acid SHPWHICSE system.