Level set topology optimization of load carrying battery packs

Kambampati, Sandilya, Gray, Justin S. and Kim, H. Alicia ORCID: https://orcid.org/0000-0002-5629-2466 2021. Level set topology optimization of load carrying battery packs. International Journal of Heat and Mass Transfer 177 , 121570. 10.1016/j.ijheatmasstransfer.2021.121570

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Abstract

In this study, the optimum design of load carrying battery packs that can also exchange heat with a coolant is presented. The level set topology optimization method is used as the design tool. The flow is modeled using the Darcy potential flow, and the heat transfer is modeled using the convection-diffusion equation. The displacement field is computed using a thermo-elasticity model. A multi-objective optimization is used that minimizes a linear combination of structural compliance, average temperature of the battery cells, and the pressure drop across the coolant. As numerical examples, we present a design study of a load carrying battery pack module that is placed inside an aircraft wing. The efficiency of the optimized designs are demonstrated by showcasing their multifunctional nature—they reduce the temperature in the battery cells by exchanging the heat generated with a coolant all the while sustaining a given load.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Elsevier
ISSN:	0017-9310
Date of Acceptance:	5 June 2021
Last Modified:	09 Nov 2022 11:12
URI:	https://orca.cardiff.ac.uk/id/eprint/142318

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