Research on the ventilation and temperature-reduction system of vehicles integrated with photovoltaic panels

Abstract In order to alleviate the problem of excessive temperature in the car during outdoor parking in summer, this paper designed a vehicle ventilation system with photovoltaic panels installed on the top of the car and the front sun visor. The numerical simulation method was used to simulate the cooling of the car under three conditions: no ventilation without photovoltaic panels, no ventilation with photovoltaic panels, and no ventilation with photovoltaic panels. At the same time, the daily power generation of solar panels is calculated, and the maximum working time of each ventilation speed under the daily power generation is obtained. The simulation results show that the average temperature inside the car can be reduced by 6-8K after installing photovoltaic panels in outdoor parking. If the ventilation speed of 5m/s is used on this basis, the temperature of the carriage with an average temperature of 340K can be rapidly reduced to 317K.