采用中国气象台典型气象年数据,分别拟合出了西北3个典型城市——西安、西宁、银川供暖季阴天、多云、少云和晴天4种天气状况下室外温度和太阳辐射照度的函数表达式,拟合曲线与实测曲线相关性很好。以西安供暖季为例,用拟合温度函数计算得到的基本耗热量与根据现行规范用稳态方法计算得到的基本耗热量相比较发现,前者为后者的60%左右。 Based on the typical meteorological data of China Meteorological Observatory, the function expressions of outdoor temperature and solar irradiance in three typical cities in northwestern China - Xi’an, Xining and Yinchuan were obtained under cloudy, cloudy, cloudy and sunny weather conditions Type, fitted curve and the measured curve is very good. Taking the heating season in Xi’an as an example, it is found that the former is about 60% of the latter compared with the basic caloric consumption calculated by the steady-state method according to the current standard by using the fitting temperature function.