建筑负荷预测中太阳辐射透过窗户引起的冷负荷

通过对建筑物玻璃窗所受太阳辐射得热的性能分析，建立了太阳辐射得热模型；根据《民用建筑热工设计规范》中划分的5个建筑热工分区，建立了典型玻璃窗的太阳辐射得热系数（SHGC）数据库，由此构建了透过玻璃窗的瞬时太阳辐射得热模型。参考DeST中的家具平板模型，建立了玻璃窗的室内蓄热平板模型，通过模型将太阳辐射得热量转化为瞬时冷负荷，并与相同条件下冷负荷系数法中的透过玻璃窗的日射得热形成冷的负荷进行对比，其相对误差不超过20％，满足城市规划阶段负荷预测的要求。从而为解决太阳辐射透过玻璃窗形成的冷负荷提供了一个新的思路，为修正用于区域能源规划中建筑负荷预测用的负荷因子模型提供了一个实用方法。

The Cooling Load Caused by Solar Radiation through the Window for the Building Load Forecasting

By analyzing the performance analysis of solar radiation heat gain of building windows, the model of the solar radiation heat gain was established. In ＂Thermal Design Code for Civil Building＂, the area of China is divided into five construction thermo technical partitions. A typical glazing solar radiation heat gain coefficient （SHGC） database was established, which contained the five partitions. Based on above, the model of the instantaneous solar radiation heat gain through windows was constructed. According to the DeST furniture plate model, the glazing indoor heat storage plate model was also established, which converts solar radiation heat gain into instantaneous cooling load. With the same conditions, the established model and the cooling load caused by cooling load coefficient method of solar radiation heat gain through the window are contrasted; the results show that the relative error is less than 20%. Thus it provided a new train of thought of solving the problem of cooling load of the sun radiation through the window. And it provides a practical way of correcting for the Load Factor model in regional energy planning.