不同气候区遮阳控制策略的节能与舒适度优化

Energy saving and comfort optimization of shading control strategies in different climate zones

遮阳设计是影响建筑能耗及室内光热舒适度的重要原因之一,开启遮阳系统可以减少太阳辐射,降低夏季制冷能耗,减少眩光问题,但同时会导致更高的照明能耗及冬季的供暖能耗。为研究中国寒冷地区和夏热冬暖地区酒店建筑典型遮阳控制策略的节能潜力和环境舒适度,采用Comfen软件模拟量化不同气候区下3种遮阳形式及10种控制策略对能耗及舒适度的影响规律,通过制冷、供热、照明能耗和总能耗、光、热舒适度以及综合优化指数来评估其性能。模拟结果表明:遮阳控制策略会影响建筑能耗和室内舒适度,根据不同优化目标给出其对应的最优控制策略,两气候区对遮阳策略与设计的选择也有所不同,通过分析其差异,为遮阳系统设计提供参考建议。

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.