屋顶集热式太阳房供暖系统研究

研制了一种屋顶集热式太阳房供暖系统，对该系统进行了结构设计优化和试验测试，结果表明，在冬季晴朗的白天，对于保温较差的试验平房（热负荷约为120W／m^2），利用1／2的屋顶面积集热，室内温度最高达到20℃，平均温度约18℃，比对照房温度高约6℃；对于保温较好的建筑物（采暖期热负荷约为20W／m^2），太阳能供暖系统在冬季白天可有效地为房间供热，多余的热量利用储热装置储存以满足夜间供暖的需要，从而实现冬季24小时为建筑物供热的目标。

Study on Rooftop Solar House Heating System

An active solar house heating system, with solar air collectors installed on rooftop, is studied. Its structure is described and the performance is tested. Thermal energy collected by the system, thermal load of the house and thermal efficiency of the fiat plate collector are calculated. The results show that, in the clear winter day in Zhenjiang City, for the poor insulated testing building （the thermal load is about 120 W/m^2）, by using 1/2 area of the rooftop for collector configuration, the highest room temperature is 20℃, the average room temperature is 18℃, about 6℃ higher than that of contrasted room （the same environment）. According to analysis, for common houses with good insulation （the heat load is about 20 W/m^2）, this solar house heating system is effective for room heating in winter. Excess energy can be stored by storage system for night use. As a result, the suggested solar heating for buildings can meet the 24- hour winter heating requirement.