The Design And Analyze Thermal Characteristics Of Enhanced Cooling Device For Photovoltaic Panels

At present,the main use of solar energy for the two types of photo-thermal application and photovoltaic application.In photovoltaic using,the photoelectric cell conversion efficiency was decreased as the temperature increased.Domestic and foreign scholars have done a certain amount of research about the problem of photoelectric cell heat dissipation,and also put forward a lot of different cooling program.In this paper,based on the relation of the environment and the intensity of the solar radiation,put forward a enhanced cooling device for photovoltaic panels.Based on the design scheme of the enhanced cooling device,finite element analysis software Ansys was used to confirm the prediction model of the heat dissipation performance of the system.With the new built model,the structural optimization of enhanced cooling device was analyzed,to validate the newly enhanced cooling device for photovoltaic panels’ s practicability and its prediction accuracy.The comparative experiment platform was built.And based on local cross wind,the static analysis of the experimental platform was analysed.To ensure the structural stability under cross-wind conditions.Subsequently,according to the experimental data required to complete the construction of the test system,including various types of sensors selection and installation,man-machine interface design,the communication between the computer and all kinds of sensors.In which,The TAM-18B20-8L digital acquisition module and KLM-4118 current acquisition module were used to collected the data of each observation point.The development of human-machine interface was realized by used the Visual Basic.The serial port communication was used to realize the real-time communication between the computer and all kinds of sensors.To carry out the experimental research,The experimental data were used to verify the prediction accuracy of the performance prediction model of the enhanced cooling device.Use the computational fluid dynamics software anlyze the heat dissipation of the enhanced cooling device was be influenced of ambient temperature and solar irradiance.The results show that the temperature of the photovoltaic panels can be reduced by about 10 degrees when have a enhanced cooling device.The photoelectric conversion efficiency and service life of photovoltaic panels can be improved.