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Structural design and simulation optimization of the air cooling system of the battery pack
Published:2018-09-20 author:FANG Kai, XU Shen, TANG Yuting Browse: 484 Check PDF documents
                        Structural design and simulation optimizationof the air cooling system of the battery pack
                                                                   FANG Kai, XU Shen, TANG Yuting
                          (School of Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China)

Abstract: Aiming at the problem that the temperature difference between the batteries is too large in summer, the relationship between the size of the flow passage, the size of the air outlet, the opening and closing of the air outlets and the temperature field of the battery pack was studied. Aircooled battery cabinet with 4 outlets was proposed. Fluent software was used to simulate the heat dissipation of battery packs with different flow channel sizes. And for the 4 outlets , a series of simulations were conducted for single opening, double opening and full opening. The results indicate that the best dimensional model is that the two flow channels with a slow flow rate adopted a 5mm flow channel design and the other nine flow channels adopted a 3 mm flow channel design,the structure has the best heat dissipation effect;when opening the outlet of 1, 2 or 3, 4, the aircooled structure can strengthen the cooling of the batteries corresponding to the air outlet; the structure can improve the temperature uniformity of the battery pack when the outlets of 1, 2 or 3, 4 is opened and closed regularly.

Key words: battery thermal management; air cooling; flow channel design; FLUENT

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