Distributed Rule Of Solar Radiation For Building Heating In Western Chin

In order to reveal the distributed rule of solar radiation for building heating in the Western China, south oriented surface solar radiation, optimal inclination angle solar radiation of solar PV panels and heating degree days were used as districted indicators to study the solar radiation zoning in western China. Method of mode calculation was used to obtain the missing data of south oriented surface solar radiation. 4 cities are selected as verification points to obtain the critical direct solar radiation needed for calculation. Through the comparison of the 3 models, the direct solar radiation calculation model suitable for the western region is found. According to the ten-year average of the above three indicators, the clustering analysis method was used to get the solar radiation zones for building thermal utilization in the Western China. The rule of solar radiation intensity of each zone was summarized from the perspective of building heating.