Considering the attractive appearance and reduction of aerodynamic drag, more and more electric vehicles adopt the closed front grille, which causes the insufficient air intake of the condenser and weakens the heat exchange performance of the condenser. Through looking for the new air intake passage between the front cabin and the condenser, the heat exchange performance of the condenser is improved. The refrigeration effect of air-conditioning system before and after the improvement of the air intake passage of condenser is compared and evaluated by CFD numerical simulation and environmental chamber test method. CFD numerical simulation results show that the air intake mass per second of the condenser of optimized electric vehicle increased by 15.17%, and air-conditioning refrigeration performance of environmental chamber tests show that the average cabin temperature decreased by more than 3 °C under various operating conditions. The measures to look for a new air intake passage for condenser can significantly improve the refrigeration effect of air-conditioning of electric vehicles and the comfort of cabin environment. The new scheme has been successfully applied to mass-produced vehicles.
Study on Air-Conditioning Refrigeration Performance of Electric Vehicle Based on Flow Field Optimization
Lect. Notes Electrical Eng.
2020-11-05
12 pages
Article/Chapter (Book)
Electronic Resource
English
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