太阳能集热组合墙系统的耦合传热与流动分析  

NUMERICAL ANALYSIS OF THE HEAT TRANSFER IN SOLAR COMPOSITE WALL COLLECTOR SYSTEM WITH POROUS ABSORBER

作　　者：陈威[1] 刘伟[2] 

机构地区：[1]上海海事大学商船学院,上海200135 [2]华中科技大学能源与动力工程学院,武汉430074

出　　处：《太阳能学报》2005年第6期882-886,共5页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(NO.59976010)

摘　　要：针对太阳能集热组合墙系统,分析了太阳辐射及环境温度变化时,组合墙内传热与流动变化。太阳能集热组合墙系统中,多孔介质起半透明隔热体和蓄热体的作用。多孔介质的空隙率、粒径大小对系统的采暖效果影响较大。Heat transfer and flow in the composite solar wall with porous absorber has been studied. The unsteady numerical simulation is employed to analyze the performance of the flow and temperature field in winter in the composite solar wall. The overplus heat is stored within the porous absorber under solar radiation and there is stratification in the porous layer. So, the porous absorber works as thermal insulator in a degree without solar shining. The influence of the particle size and the porosity within the porous absorber on the these factors should be taken into account for a better heating room temperature is significant. The results showed that all design of a heating system.

关 键 词：太阳能 采暖墙 多孔介质 传热与流动 计算模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]