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Application of Jets and Vortex Generators to Improve Air-cooling and Temperature Uniformity in a Simple Battery Pack

[+] Author and Article Information
Seham Shahid

Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, L1H 7K4, Canada
seham.shahid@uoit.net

Martin Agelin-Chaab

Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, L1H 7K4, Canada
martin.agelin-chaab@uoit.ca

1Corresponding author.

ASME doi:10.1115/1.4041493 History: Received January 05, 2018; Revised September 10, 2018

Abstract

In this paper, the problem of air cooling and temperature non-uniformity at the cell and pack level is addressed. Passive techniques are developed by integrating jet inlets and vortex generators in a simple battery pack with the goal to achieve an effective cooling, and the desired temperature uniformity at the cell and pack level to less than 5 ºC, without an increase in the required mass flow and power requirements. Moreover, different configurations of the developed techniques are examined and compared. In order to achieve the objectives, computational fluid dynamics (CFD) is used to perform detailed simulations of the battery packs. The results concluded that by adding both the delta winglet vortex generator arrays and jet inlet arrays in the same configuration, significant improvements in cooling and temperature uniformity can be achieved. The results showed that the maximum temperature of the battery pack was reduced by ~6% and the temperature uniformity at the pack level was increased by 24%. Additionally, a ~37% improvement in the temperature uniformity at the cell level was achieved.

Copyright (c) 2018 by ASME
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