太阳能热利用中相变蓄热装置优化设计研究  

DESIGN OF PHASE CHANGE THERMAL STORAGE DEVICE IN THE THERMAL UTILIZATION OF SOLAR ENERGY

作　　者：曲世琳[1] 彭莉[1] 吴晓琼[1] 杨利香[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《太阳能学报》2015年第7期1705-1709,共5页Acta Energiae Solaris Sinica

基　　金：国家十二五科技支撑计划(2014BAJ01B03;2011BAJ03B14);北京高校"青年英才计划"(YETP0370);中央高校基本科研业务费(FRF-TP-14-028A2)

摘　　要：为提高太阳能水源热泵的光热利用效率,以非直膨式太阳能热泵系统为研究对象,从系统角度出发通过Fluent模拟和实验研究的方法,对相变蓄热装置中相变材料的选择、蓄热单元及均流孔板在水箱中的布置方式进行模拟分析与实验验证。实验结果表明:增加相变蓄热装置后太阳能供暖系统的集热效率由64%提高到94%,COP由2.32提高到6.18。In order to improve the light and thermal utilization efficiency of solar water source heat pump, this article takes non-straight-expanding solar heat pump system（NSESHPS）as the research object from the point of system. Through the fluent simulation and experimental research method, chose of phase change materials in phase change thermal storage device and the arrangement of thermal storage unit and uniform flow orifice in tank have been made. The results showed that the thermal collection efficiency of the solar heating system increases from 64% to 94%, the COP increases from 2.32 to 6.18 after increasing a phase change thermal storage device.

关 键 词：太阳能热泵 相变蓄热装置 FLUENT 集热效率 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]