以节能为导向的乡村住宅南墙遮阳构件参数优化研究

STUDY ON SUNSHADE COMPONENT PARAMETERS OF SOUTH WALL OF ENERGY-SAVING RURAL RESIDENTIAL BUILDING

以杭州地区乡村住宅为例,通过实地调研与测量,分析不同遮阳构件参数下室内温度与照度。依据实验结果,外遮阳形式对建筑能耗存在明显影响。为进一步研究最佳遮阳构件参数,运用Grasshopper参数化设计平台,对设置水平式、垂直式、综合式及挡板式遮阳的建筑模型进行采光性能与能耗分析。结果表明:当建筑外遮阳形式为水平式遮阳且遮阳板出挑长度为0.6m时,建筑总能耗最低,为4856kW·h,节能效率为3.67%。研究结果可为绿色建筑设计在遮阳构件参数优化提供参考。

Taking rural residential buildings in Hangzhou for example,the indoor temperature and illuminance were analyzed with different sunshade component parameters through field investigation and measurement.Experimental results show that external sunshade components have obvious influence on the energy consumption of buildings.In order to further study the parameters of optimal sunshade components,the lighting performance and energy consumption of building models with horizontal,vertical,comprehensive and baffle sunshades were analyzed through the Grasshopper parametric design platform.Results showed:when the exterior sunshade with a protrusion length of 0.6m is adopted,the total energy consumption of buildings is the lowest(4856 kW·h),and the energy saving efficiency is 3.67%.Research results provide a reference for optimization of sunshade component parameters in green building design.