陕南地区光伏遮阳板的应用研究
Research on the application of photovoltaic shading panels in southern Shaanxi province
光伏遮阳板因为具遮阳节能与绿色发电双重功能,已成为建筑光伏一体化(BIPV)的关键技术。为研究光伏遮阳系统在陕南地区的应用,本研究根据陕南气象资料,应用EnergyPlus和Grasshoper+Ladybug Tools软件,模拟了光伏遮阳板在不同悬伸宽度、安装倾角下的发电量、建筑室内光环境情况。结果表明,在陕南地区安装光伏遮阳板能提高建筑的节能率,光伏遮阳板发电量随着安装的倾斜角度增大而增大,而室内采光强度与之相反,且光伏遮阳板悬伸宽度为1.5 m时发电量与照明能耗自满足率达到最大,安装倾斜角度为30°时室内全年采光强度均达到要求。悬伸宽度1.5 m、倾斜角度30°为最佳安装方式。本研究为陕南地区办公建筑迈向“近零能耗”提供参考,也为光伏遮阳系统推广使用提供支持。
Photovoltaic sunshades, with their dual functions of shading and energy conservation as well as green power generation, have become a key technology in building-integrated photovoltaics (BIPV). To study the application of photovoltaic shading systems in southern Shaanxi, this research utilized EnergyPlus and Grasshopper+Ladybug Tools software based on meteorological data from the region to simulate the power generation and indoor lighting conditions of photovoltaic sunshades under different overhang widths and installation angles. The results show that installing photovoltaic sunshades in southern Shaanxi can enhance the energy efficiency of buildings. The power generation of photovoltaic sunshades increases with the increase in installation angle, while the indoor lighting intensity decreases. When the overhang width is 1.5 m, the self-sufficiency rate of power generation and lighting energy consumption reaches the maximum. When the installation angle is 30°,the indoor annual lighting intensity meets the requirements. The optimal installation method is an overhang width of 1.5 m and an installation angle of 30°. This research provides a reference for office buildings in southern Shaanxi to move towards “near-zero energy consumption” and supports the promotion and application of photovoltaic shading systems.
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陕西省重点研发计划项目(2022SF-528)
延安大学科研计划项目(YAU202408622)
横向合作服务项目(ZJ2024-12-10-1)
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