基于Ecotect的太阳能光伏外遮阳结构的数值模拟研究  

Optimization of photovoltaic external shading structure based on ecotect

作　　者：陈海飞 王韵杰 蔡宝瑞 邱䶮 杨洁 Chen Haifei;Wang Yunjie;Cai Baorui;Qiu Yan;Yang Jie(School of Petroleum Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学石油工程学院,江苏常州213164

出　　处：《可再生能源》2021年第9期1166-1174,共9页Renewable Energy Resources

基　　金：国家自然科学基金项目(51906020);江苏省高等学校自然科学研究项目(18KJD480001)。

摘　　要：文章基于Ecotect软件和Radiance软件的协作交互,研究了光伏外遮阳(外置光伏板和光伏百叶结构)的变化对室内采光效果和光伏发电量的影响。研究结果表明:在南京地区,外置光伏板长度的变化对DA和DF影响较大;光伏百叶结构透明度的增大能够显著提升DA和DF;当采用光伏外遮阳时,适宜的窗墙比可使室内仅依靠自然采光达到最低采光限度(300 lux)的时间占比达到70%以上。此外,不同的光伏外遮阳倾角对各月发电量的影响不同,当光伏外遮阳的倾角为15°时,各月发电量均高于光伏外遮阳倾角为90°的工况,因此,可每月通过调整光伏外遮阳倾角来保证光伏外遮阳获得年最大发电量。Based on the interactive collaboration between Ecotect and Radiance,this article studies the influence of changes in the structure of photovoltaic external shading(external photovoltaic panels and photovoltaic louver structure)on indoor lighting effects and photovoltaic power generation.The research results show that in Nanjing,the length of external photovoltaic panels has a greater impact on DA and DF;the increase in transparency of the photovoltaic louver structure has greater potential for the improvement of DA and DF.When using photovoltaic external shading,a suitable window-towall ratio can make the indoor only relying on natural lighting to reach the indoor lighting limit value(300 lux)for more than 70%of the time.In addition,the inclination angle of the photovoltaic external shading has different effects on the monthly power generation.When the photovoltaic external shading inclination is 15 o,the power generation is higher than that when the photovoltaic external shading is perpendicular to the ground.Therefore,the photovoltaic external shading can be adjusted monthly.The inclination angle of the sunshade to ensure that the photovoltaic external sunshade obtains the maximum annual power generation.

关 键 词：光伏 室内采光效果 发电量 ECOTECT 

分 类 号：TK511[动力工程及工程热物理—热能工程]