相变蓄热式家用太阳热水系统国外研究进展

综述了国外相变蓄热材料在家用太阳热水系统中的应用研究进展情况;指出相变蓄热材料的应用可以提高系统的集热效率;能量蓄积密度和太阳能保证率。材料的性质（如导热系数、熔点、比热容,相变潜热、密度等）、设计参数（蓄热材料的体积、换热管的数量和位置）以及材料的包装方式（形状和大小）影响系统性能（包括效率、出水温度、热水可用时间、热损及蓄放热速率）。

Solar domestic water-heating system based on phase-change materials overseas: a review

The paper summarizes the progress of application research on solar domestic water-heating system based on phase-change thermal storage materials overseas.And it points out that with the utilization of phase-change thermal storage materials,the heat-collecting efficiency,storage density and solar fraction of the system will be improved.It then also indicates that the performances of the system,like thermal efficiency,outlet temperature,duration of hot water available,heat loss and the tempo of heat storage and release are all determined by properties of materials,including thermal coefficient,melting point,specific heat,latent heat and density and ways of packing,such as shape and size.