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COBEM 2023
27th International Congress of Mechanical Engineering
A PRELIMINARY NUMERICAL STUDY OF A THERMAL MANAGEMENT SYSTEM FOR ELECTRIC VEHICLE BATTERIES EMPLOYING MICROCHANNELS WITH TRIPLY PERIODIC MINIMAL SURFACES
Submission Author:
Felipe Selmo , RS
Co-Authors:
Felipe Selmo, Guilherme Henrique Fiorot
Presenter: Felipe Selmo
doi://10.26678/ABCM.COBEM2023.COB2023-2333
Abstract
The increasing use of electric and hybrid cars stimulates the need for improvement of autonomy and safety of the energy storage systems of these vehicles. In this context, Battery Thermal Management Systems (BTMS) assume a fundamental role: they seek to guarantee an adequate thermal condition in the battery cells. On the other hand, the growth of additive manufacturing techniques expands the possibility of investigating different topologies that seek to improve heat transfer in these systems. In this sense, Triply Periodic Minimal Surfaces (TPMS) can be an option to achieve this once they offer high surface-area-to-volume ratios and high heat transfer area. Using the software OpenFOAM®, the present work aimed to numerically study the effects of the use of Schwarz Type-D TPMS-based structures in the tubes of a BTMS considering a steady-state process of indirect liquid cooling of cylindrical lithium-ion battery cells. Results showed that the employment of a TPMS geometry offers, in comparison to a baseline system, a reduction in the maximum temperature of the cell set by more than 2K and a increase of the Nusselt number by a factor of 3.11, but increases the friction factor in the cooling tubes. This scenario indicates that the application of the studied TPMS system prioritizes a better thermal operation of the battery cells over a high friction factor.
Keywords
electric vehicle, Triply Periodic Minimal Surfaces, Battery Thermal Management Systems, OpenFOAM
