Performance of Autonomous Temperature Controlled Photovoltaic Modules with Water Film

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Li, Jinbao^1 ; Xi, Zeyi^1 ; Wu, Sen^1

College of Mechanical and Electrical Engineering, Hohai University, Changzhou, China^1

关键词: Circulating waters;    Experimental devices;    Inclination angles;    Photovoltaic modules;    Power generation efficiency;    PV power generation;    Surface temperatures;    Theoretical heat transfers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/3/032097/pdf
DOI  :  10.1088/1755-1315/267/3/032097

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to reduce the surface temperature of solar cells and reduce the surface dust and improve the power generation efficiency of PV modules, this paper introduces a cooling device for PV modules based on temperature self-regulation, including PV power generation, circulating water and temperature control system. The theoretical heat transfer model of the experimental device during operation is established. Set the temperature control interval of the temperature control system, and compare the test with the same type of panel with the no-surface film flowing at the same inclination angle. The research showed that when the average ambient temperature is 21.61 °C, the average temperature of the panel without water film cooling is about 35.37 °C, and the average temperature of the panel with the water film cooling is about 25.53 °C, which achieves the purpose of cooling and temperature control. At the same time, the output power of the water film cooling panel is relatively increased by about 13.57%. In summary, the water film cooling device in this paper can effectively reduce and stabilize the temperature of the PV module, reduce surface dust and increase its output power.