Thermal Management Simulation of Liquid-Cooled Energy Storage Batteries Using a Reduced-Order Model Trina Storage

Format:

Book

Conference/Event

Author/Creator:

Guo, Jia, author.

Chen, Guijie, author.

Ma, Shihu, author.

Hu, Xiao, author.

Li, Jing, author.

Song, Shujun, author.

Huang, Long, author.

Conference Name:

WCX SAE World Congress Experience (2026-04-14 : Detroit, Michigan, United States)

Language:

English

Subjects (All):

Battery thermal management.

Energy storage systems.

Thermal management.

Heat transfer.

Coolants.

Computational fluid dynamics (CFD).

Local Subjects:

Battery thermal management.

Energy storage systems.

Thermal management.

Heat transfer.

Coolants.

Computational fluid dynamics (CFD).

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Linear time-invariant (LTI) reduced-order models (ROMs) have been widely used in battery thermal management simulations due to their low hardware requirements, high computational efficiency, and good accuracy. However, the inherent assumption of LTI behavior limits their applicability in scenarios with varying coolant flow rates, where this assumption is no longer valid. To address this limitation, a novel ROM is developed by decomposing the entire battery thermal system into two subsystems. All solid components are modeled as a traditional LTI ROM, while the coolant channel is represented using Newton's cooling law. The two subsystems are then coupled through the exchange of heat transfer rate and temperature at the fluidsolid interface between the coolant and the cold plate. Model fidelity is further enhanced by introducing a spatially distributed heat flux during the generation of the LTI ROM for solid components. Validation is performed against CFD simulations at both module and pack levels, under constant and varying flow rates. The results demonstrate that the proposed ROM achieves high accuracy while requiring several orders of magnitude less computational time than the corresponding CFD models

Notes:

Vendor supplied data

Access Restriction:

Restricted for use by site license