Abstract:Shading design is one of the important factors that affect building energy saving, indoor light and thermal comfort. The sun shading system can reduce the solar radiation, cooling energy consumption in summer and glare, but at the same time, it will lead to higher lighting and heating energy consumption in winter. In order to study the energy saving and environmental comfort of typical shading control strategies for hotel buildings in the cold areas and the areas with the hot summer and warm winter in China, the effects of three shading forms and ten control strategies on energy consumption and comfort in different climatic zones are simulated by COMFEN. Their performances are assessed in respects of cooling, heating, lighting and total energy consumption, as well as light and thermal comfort and comprehensive optimization index. The simulation results show that the shading control strategy will affect the building energy consumption and indoor comfort. Optimal control strategies are given corresponding to different optimization objectives. In addition, some suggestions are provided for the selection of shading strategies and designs through the analysis of the differences between the two climatic regions.