相变蓄热式家用太阳热水系统国外研究进展  

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

作　　者：薛怀生[1] 操恺[1] 王凤玲[1] 

机构地区：[1]江苏省产品质量监督检验研究院,江苏南京210007

出　　处：《能源工程》2010年第6期24-28,共5页Energy Engineering

基　　金：江苏省科技基础设施建设计划-科技公共服务平台资助项目(BM2008109)

摘　　要：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)。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.

关 键 词：太阳能 家用太阳热水系统 相变蓄热材料 

分 类 号：TK519[动力工程及工程热物理—热能工程]