基于热岛效应的楼宇太阳能光伏电池的能效分析  

Energy Efficiency Analysis of Building Solar Photovoltaic Cells based on Heat Island Effect

作　　者：栾瑞瑛 卢艳林 秦渊 商雨禾 秦汉时 侯佑民[4] LUAN Rui-ying;LU Yan-lin;Qin Yuan;SHANG Yu-he;QIN Han-shi;HOU You-min(Central Southern China Electric Power Design Institute Co.,Ltd.of China Power Engineering Consuteeing Group,Wuhan 43061,China;School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210046,China;School of Low Carbon Economics,Hubei University of Economics,Wuhan 430205,China;School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430061 [2]南京师范大学能源与机械工程学院,江苏南京210046 [3]湖北经济学院低碳经济学院,湖北武汉430205 [4]武汉大学动力与机械学院,湖北武汉430072

出　　处：《节能技术》2022年第6期557-562,574,共7页Energy Conservation Technology

摘　　要：为了探究太阳能光伏系统的能源利用效率,本文通过COMSOL软件构建了面积为50000 m2的小区模型。在分析太阳能光伏电池导致的环境温度变化的基础上,对其带来的能源产出、热岛效应对建筑物能耗和系统净能量收益的影响进行了综合分析。研究表明,在建筑物上安装太阳能光伏电池板会导致热岛效应加剧。在夏季和冬季,小区在24 h内的平均温度分别升高了0.13 K和0.09 K。此外,对于长时间(如一周内)的运行,光伏面板持续吸收了大量的热量,使得小区内的平均环境温度不断上升,夏季的制冷消耗增大,冬季采暖能耗减少。因此,夏季小区内太阳能光伏电池的实际能源利用量不断下降,在第七日仅占其发电量的30%左右;而冬季则相反,在第七日上升到其发电量的168%。In order to study the energy utilization efficiency of solar photovoltaic cells,this paper constructed a model of 50000 m~2 community installed solar photovoltaic panels via COMSOL software.On the basis of the change of ambient temperature,the energy output,energy consumption and the net energy surplus of solar systems were studied.The results revealed that solar photovoltaic panels on buildings led to the intensified heat island effect so as to increase the average temperature of the community by 0.13 K and 0.09 K within 24 h in summer and winter,respectively.Otherwise,a large amount of heat absorbed by photovoltaic panels causes the increasing ambient temperature in the community for long-term operation(such as a week),which makes refrigeration energy consumption increase in summer and the heating energy consumption decrease.Thus,the actual energy utilization of solar photovoltaic panels in the community is different in summer and winter.In summer,it continues to decline and accounting for only about 30%of its power generation on the seventh day.On the contrary,the actual energy utilization can reach 168%of its power generation in winter.

关 键 词：太阳能电池 热岛效应 能效分析 环境温度 建筑物能耗 

分 类 号：TK513[动力工程及工程热物理—热能工程]