Experimental Study on Thermoelectric Integration of Photovoltaic Thermal Management and Waste Heat Utilization
In order to achieve efficient thermal management of photovoltaic modules and full utilization of solar energy resources,an integrated system of photovoltaic thermal management and thermoelectricity was established,where the phase-change cooling components was fixed between photovoltaic modules and thermoelectric devices to achieve the thermal management of photovoltaic cells and use the waste heat for power generation.The effects of phase change cooling,phase change-finned cooling and phase change-finned-water cooling on the thermal management of photovoltaic devices and the power genera-tion efficiency of thermoelectric devices are studied by using electric heating to simulate photovoltaic heat flow.The research results show that the integrated system can meet the effective thermal management of 3 hours of daily high intensity light.The average temperature of the hot surface is 43℃,which is 3.4℃lower than that of simple phase change cooling,and the maximum power output of the thermoelectric de-vice can be maintained smoothly during thermal management,and the maximum output power is about 6.05 times that of phase change cooling.Experimental research and analysis show that the integrated sys-tem proposed in this paper provides a certain reference for photovoltaic thermal management and waste heat utilization.
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