夏热冬冷地区遮阳及自然采光节能优化设计

Optimal Design of Shading and Daylighting for an Office Building in Shanghai

对于夏热冬冷地区,建筑外遮阳是一种非常有效的节能措施,不仅可以有效降低冷负荷,而且能够阻挡眩光,提供舒适的视觉环境,但是对自然采光有一定影响。借助能耗模拟软件Energyplus建立了上海某高层办公楼建筑模型,在采用自然采光和人工照明自动控制的条件下,模拟不同朝向采用不同形式的遮阳对建筑整体能耗及室内光环境产生的影响,通过比较后得出各个朝向的最佳遮阳形式。

Exterior shading is an effective energy-saving method for buildings in hot summer and cold winter area in China. It can not only decrease cooling load, but also shield glare to provide comfortable visual environment. A large office building model in Shanghai is es- tablished with Energyplus, simulating its energy consumption and indoor visual environment when different types of shading devices are ap- plied to windows of different building favades. At the same time, the model also adopts daylighting and automatic artificial lighting. With all above factors considered, the best shading type of eavhfacade is found.