寒冷地区半透明光伏窗热工参数限值研究——以太原地区某办公建筑为例  

Study on thermal parameters of semi-transparent photovoltaic window in cold regions of China——Take an office building in Taiyuan as an example

作　　者：胡伊林 王昊博 程远达[1] 王瑞[1] 张海云 郭霖 范宝秀 Hu Yilin;Wang Haobo;Cheng Yuanda;Wang Rui;Zhang Haiyun;Guo Lin;Fan Baoxiu(Taiyuan University of Technology,Taiyuan 030000,China;Shanxi Construction Engineering Group Co.LTD,Taiyuan 030000,China)

机构地区：[1]太原理工大学,山西太原030000 [2]山西建筑工程集团有限公司,山西太原030000

出　　处：《可再生能源》2025年第2期183-190,共8页Renewable Energy Resources

基　　金：中央引导地方科技发展资金项目(YDZJSX2021A022)。

摘　　要：由于半透明光伏窗中的太阳能电池对太阳辐射光谱有选择作用,光伏窗建筑的能耗和室内光热环境与普通白玻建筑均有差异。在建筑物应用光伏窗时,需有特定的热工参数设计值进行参考,但目前缺少相关依据。因此,文章以太原某办公建筑为例,建立基准建筑和设计建筑模型,探究传热系数(Heat Transfer Coefficient, U-value)和太阳得热系数(Solar Heat Gain Coefficient, SHGC)对光伏窗建筑能耗的影响,并采用权衡判断法得出光伏窗U值和SHGC值的推荐范围。结果表明:在太原地区应用光伏窗时,较小的U值和较大的SHGC值更有利于建筑节能;当光伏窗建筑窗墙比大于0.60、透过率等于0.46时,U值的最大限值是现有节能标准限值的1.9倍;通过对比不同窗墙比时SHGC值的推荐范围,发现随着窗墙比的增大,SHGC下限值减小了25%。研究结果对于光伏窗建筑热工设计与优化具有一定的指导意义与参考价值。Due to the selection of solar radiation spectrum by solar cells in semi-transparent photovoltaic windows,the energy consumption,indoor daylight and thermal environment of photovoltaic window buildings are different with clear glass window buildings.When semi-transparent photovoltaic windows are applied to building,specific design values for thermal parameters are required for reference,but there is a lack of basis.Therefore,this paper took an office building in Taiyuan as an example,established a reference building model and a design building model,and explored the influence of the Heat Transfer Coefficient(U-value)and Solar Heat Gain Coefficient(SHGC)on the energy consumption of semi-transparent photovoltaic window buildings.The recommended range of U-value and SHGC value of photovoltaic window is obtained by the method of trade-off judgment.The results show that smaller U-value and larger SHGC value are more beneficial to energy saving when photovoltaic windows are used in Taiyuan.When the window-wall ratio of photovoltaic window building is greater than 0.60 and the transmittance is equal to 0.46,the maximum U-value limit is 1.9 times the existing energy-saving standard limit.By comparing the recommended range of SHGC value with different window wall ratio,the lower limit of SHGC decreases by 25%.

关 键 词：半透明光伏窗 U值 SHGC 权衡判断法 

分 类 号：TK51[动力工程及工程热物理—热能工程] TU111.4[建筑科学—建筑理论]