传统民居屋顶光伏建筑一体化改造设计研究

BIPV Design in Retrofitting the Traditional Residential Roof

光伏建筑一体化(BIPV)是促进“碳中和”的有效途径之一。在存量更新背景下,探讨BIPV技术在传统民居改造中的应用策略,对提高传统民居节能减碳具有重要的意义。以道口古镇传统民居改造项目为例,结合Ecotect软件模拟,计算全周期经济收益平衡,确定了道口地区传统民居坡屋顶光伏安装铜铟镓硒(CIGS)薄膜太阳能光伏组件的辐射阈值为893 kW·h/m^(2),并提出了传统民居屋顶光伏板瓦改造的构造节点做法。利用EnergyPlus软件和光伏发电计算公式分别计算建筑能耗和光伏发电量,结果表明1层建筑屋顶光伏发电可替代传统能耗的57%,2层建筑可替代能源51%,为北方传统民居光伏屋顶改造提供了方法和依据。

Building-integrated photovoltaics(BIPV)is one of the effective ways to promote“carbon neutrality”.In the context of inventory renewal,it is of great significance exploring the application strategy of BIPV technology in the retrofitting traditional residential buildings.Taking the reconstruction project of traditional residential buildings in Daokou Ancient Town as an example,it is simulated with ECOTECT and calculated the economic cost of the whole life cycle.It is determined that the CIGS PV module installation threshold of traditional residential sloping roofs in the Daokou area is 893 kW·h/m^(2).The construction of photovoltaic panels in retrofitting the traditional residential roof is proposed.Building energy consumption is calculated with EnergyPlus and photovoltaic power generation is calculated with formula respectively.The results show that the photovoltaic power generation can replace 57%of the traditional energy consumption for the one-story building,and 51%of the alternative energy for the twostory building which provides a method and basis for the traditional residential photovoltaic roof retrofit in northern China.