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Article Dans Une Revue Energy Année : 2022

Validation of a data-driven fast numerical model to simulate the Immersion Cooling of a Lithium-ion Battery Pack

Résumé

Thermal management of Lithium-ion batteries is a key element to the widespread of elec- tric vehicles. In this study, we illustrate the validation of a data-driven numerical method permitting to evaluate fast the behavior of the Immersion Cooling of a Lithium-ion Battery Pack. First, we illustrate an experiment using a set up of immersion cooling battery pack, where the temperatures, voltage and electrical current evolution of the Li-ion batteries are monitored. The impact of different charging/discharging cycles on the thermal behavior of the battery pack is investigated. Secondly, we introduce a numerical model, that simulates the heat transfer and electrical behavior of an immersion cooling Battery Thermal Management System. The deterministic numerical model is compared against the experimental measure- ments of temperatures. Then, we perform a Bayesian calibration of the multi-physics input parameters using the experimental measurements directly. The informative distributions outcoming of this process are used to validate the model in different experimental conditions and reduce the uncertainty in the model’s temperatures predictions. Finally, the learned distributions of inputs and the numerical model are used to design the system under realistic conditions representing a realistic racing car operation. A Sobol indices based sensitivity analysis is performed to get further analysis elements on the behavior of the BTMS.
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Dates et versions

hal-03707343 , version 1 (28-06-2022)

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Elie Solai, Maxime Guadagnini, Heloise Beaugendre, Rémi Daccord, Pietro Marco Congedo. Validation of a data-driven fast numerical model to simulate the Immersion Cooling of a Lithium-ion Battery Pack. Energy, 2022, 249, pp.123633. ⟨10.1016/j.energy.2022.123633⟩. ⟨hal-03707343⟩
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