西部地区居住建筑太阳能采暖利用辐射分区

DISTRIBUTION OF SOLAR RADIANT HEATING USAGE ABOUT RESIDENTIAL BUILDINGS IN WESTERN CHINA

为区分西部地区居住建筑太阳能采暖的辐射资源差异,针对不同辐射资源强度的太阳能采暖设计开展太阳辐射分区研究。提出以光热采暖度日数辐射比、光电采暖度日数辐射比作为太阳辐射分区指标。为计算南向立面辐射量、光伏板在最佳倾角下接收到的辐射量,通过对比3种太阳辐射模型选择适宜西部地区使用的模型。选择西部地区12个省(自治区、直辖市)的46座城市作为分区数据源,采用聚类分析得到4个居住建筑太阳能采暖辐射区域,并对各区域的太阳能建筑采暖利用潜力进行分析。

In order to distinguish the difference in radiation resources of solar heating in residential buildings of the western region in China,solar radiation zoning for solar heating design with different radiation intensity was studied. The radiation ratio of the solar-thermal heating degree days based on 18 ℃ and the solar-photovoltaic heating degree days based on 18 ℃ were taken as the solar radiation division indicators. In order to calculate the amount of solar radiation under the south facade and the optimum tilt angle of photovoltaic panels,a suitable computing model for the western region was selected by comparing the three solar radiation models at 46 sites(cities)in 12 provinces(autonomous regions and municipalities directly under the central government)in the western region were selected as the partitioned data source,then clustering theory was used to obtain solar heating radiation zoning for four residential buildings,and the potential of solar energy buildings in each sub-region was analyzed.