太阳墙热特性分析

对改进的特朗勃墙进行热过程分析,采用CFD技术耦合流固传热求解控制方程,研究了该太阳墙的动态热特性及在冬夏季华北典型气象条件的集热、保温、隔热及预热特性。同时,对墙体材料、墙体高度、空气层厚度、通风孔尺寸等敏感因子进行了分析,给出了适宜的墙体材料及构造形式。所得结论将有利于推进太阳能—建筑一体化技术的发展。

STUDY ON THE THERMAL PERFORMANCE OF SOLAR WALL

By analyzing the heat transfer process,a CFD model for simulating the dynamic thermal performance of refor- mative solar wall was presented and solved by coupling the heat transfer in solid region with the viscosity fluid.Under the typical winter and summer meteorologic condition of North China,the thermal performance of heat collection,heat preser- vation,heat insulation,pre-heating were discussed.In addition,the suitable construction and material for solar wall were given by analyzing the sensitive factors such as material,height,thickness of air gap,width of ventetc.The conclusions drawn in the paper will promote the development of the technology for build integrating solar and thermal.