寒冷地区办公建筑立面动态光伏遮阳优化研究  

Dynamic Photovoltaic Shading Optimization of Office Building Facades in Cold Regions

作　　者：李龙飞 范征宇 刘加平[1,3] LI Longfei;FAN Zhengyu;LIU Jiaping(School of Architecture,Xi’an University of Architecture and Technology,Xi’an 710055,China;Wuxi COFCO Engineering and Technology Co.,LTD,Wuxi 214035,Jiangsu,China;State Key Laboratory of Green Building in Western China,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学建筑学院,西安710055 [2]无锡中粮工程科技有限公司,江苏无锡214035 [3]西部绿色建筑国家重点实验室,西安710055

出　　处：《建筑节能(中英文)》2025年第1期3-11,共9页Building Energy Efficiency

基　　金：国家自然科学基金资助项目(52008325);国家重点研发计划资助项目(2017YFC0702303)。

摘　　要：建筑光伏遮阳已经是一种较为常见的BIPV形式,通常为固定式遮阳。固定式遮阳构造简单,但是对于季节变化及太阳入射角度变化缺少动态回应,不能最大程度地利用光伏遮阳板发电和遮阳效应来降低建筑的运营能耗。通过模拟和实验验证的方式,设计了一种可以调节遮阳角度和高度的立面光伏遮阳形式,相对于固定式的光伏遮阳,动态遮阳的优势主要有两个:1)光伏板角度的调节可以更大程度地接受太阳辐射,从而提高整体的发电效率;2)光伏遮阳板高度的调节可以在夏季遮蔽更多的太阳辐射从而减少制冷能耗,在冬季尽可能引入太阳辐射从而增加室内太阳辐射以降低采暖能耗。动态光伏遮阳相对于两种固定式光伏遮阳和无遮阳综合能耗分别减少了60.4%、29.9%和15.45%。Building-integrated photovoltaic(BIPV)shading has become a common form of BIPV,typically in the form of fixed shading.However,the fixed shading lacks of dynamic response to seasonal changes and variations in solar incidence angles,thus failing to fully utilize the photovoltaic shading panels for electricity generation and shading effects to reduce building operational energy consumption.Through simulation and experimental validation,a facade photovoltaic shading form that can adjust the shading angle and height is designed.Compared to the fixed photovoltaic shading,dynamic shading has two main advantages:1)adjusting the angle of photovoltaic panels can maximize the absorption of solar radiation,thereby improving overall electricity generation efficiency;2)adjusting the height of photovoltaic shading panels can shade more solar radiation in summer to reduce cooling energy consumption and introduce more solar radiation in winter to reduce heating energy consumption.Dynamic photovoltaic shading reduces energy consumption by 60.4%,29.9%,and 15.45%compared to two types of fixed photovoltaic shading and no shading,respectively.

关 键 词：BIPV 光伏遮阳 办公建筑 寒冷气候 综合能耗 

分 类 号：TU111[建筑科学—建筑理论]