Effects of air inlet and outlet on thermal management of electric vehicle battery pack equipped with fins

IF 1.4 4区工程技术 Q3 ENGINEERING, CHEMICAL Asia-Pacific Journal of Chemical Engineering Pub Date : 2024-03-20 DOI:10.1002/apj.3061

Jie Yu, Yunsen Zhang, Cong Qi, Lin Liang

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Abstract

To solve the high heat dissipation problem of lithium ion battery, the air-cooled heat dissipation with fins is adopted for the thermal management. Heat dissipation characteristics of two types of air inlets and outlets (single air inlet and outlet, and double air inlet and outlet) and two types of surfaces (smooth and fin structure) were simulated and compared. When the air inlet and outlet are single inlet and single outlet, compared with smooth battery packs, finned construction packs can increase the Nusselt number by 24.9%. When the air inlet and outlet are double inlet and double outlet, compared with smooth battery packs, finned construction packs can increase the Nusselt number by 13.3%. The double-air inlet and outlet battery pack can significantly reduce the average temperature of the battery pack compared with the single-air inlet and outlet battery pack. Compared with the single-inlet and single-outlet solar smooth battery pack, it can increase the Nu by 131.6%, and the comprehensive performance index can reach 1.66.

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进气口和出气口对装有散热片的电动汽车电池组热管理的影响

为解决锂离子电池的高散热问题，热管理采用了带鳍片的风冷散热方式。模拟并比较了两种进气口和出气口（单进气口和单出气口、双进气口和双出气口）以及两种表面（光滑表面和鳍片结构）的散热特性。当进气口和出气口均为单进气口和单出气口时，与光滑电池组相比，鳍状结构电池组的努塞尔特数提高了 24.9%。当进气口和出气口为双进气口和双出气口时，与光滑电池组相比，翅片结构电池组的努塞尔特数可增加 13.3%。与单进单出电池组相比，双进双出电池组能显著降低电池组的平均温度。与单进单出的太阳能光滑电池组相比，它能使努提高 131.6%，综合性能指数达到 1.66。

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来源期刊

Asia-Pacific Journal of Chemical Engineering ENGINEERING, CHEMICAL-

自引率

11.10%

发文量

111

期刊介绍： Asia-Pacific Journal of Chemical Engineering is aimed at capturing current developments and initiatives in chemical engineering related and specialised areas. Publishing six issues each year, the journal showcases innovative technological developments, providing an opportunity for technology transfer and collaboration. Asia-Pacific Journal of Chemical Engineering will focus particular attention on the key areas of: Process Application (separation, polymer, catalysis, nanotechnology, electrochemistry, nuclear technology); Energy and Environmental Technology (materials for energy storage and conversion, coal gasification, gas liquefaction, air pollution control, water treatment, waste utilization and management, nuclear waste remediation); and Biochemical Engineering (including targeted drug delivery applications).