Abstract
The promotion of transport electrification represents a pivotal strategy in addressing the energy crisis, wherein the adoption of the electric vehicles (EVs) plays a crucial role towards the realization of this goal. Immersion cooling battery thermal management systems (ICBTMS) emerge as an innovative strategy to guarantee the safe operation of the EVs. This study proposes an immersion cooling battery thermal management system with twisted tapes channel (TT-ICBTMS), offering effective temperature regulation of the battery pack. Drawing upon the experimental and simulation results associated with the high-capacity square battery, this paper selects a channel for further experimentation and simulation to elucidate the mechanisms by which various cooling methods and twisted tape configurations impact cooling efficacy. Subsequently, predicated on the comprehensive evaluation results, the channel with the hybrid twisted tapes (H-TT) is proposed. The H-TT, comprising both reverse twisted tapes (R-TT) and hollow reverse twisted tapes (HR-TT), serves to mitigate battery temperature rise, diminish pressure drop, and reduce the maximum temperature difference. This paper examines the heat transfer performance of the channel with the H-TT, revealing that, at the flow rate of 0.5 L/min and the discharge rate of 3C (Idischarge = 654 A), the maximum temperature of battery reaches merely 36.47 °C, with the maximum temperature difference of battery module being confined to 1.81 °C. Finally, a methodology employing the porous structure as the replacement for the H-TT in simulations is introduced in this study, a tactic validated through juxtaposition of experimental and simulation results, and subsequently applies this method in battery pack simulations. The simulation results demonstrate that, within the immersion cooling battery thermal management system with hybrid twisted tapes channel (H-TT-ICBTMS), the maximum temperature is confined to a mere 36.29 °C, with the maximum temperature difference limited to 2.63 °C, under the conditions of the flow rate of 22.5 L/min and the discharge rate of 3C (Idischarge = 654 A). This study posits that the H-TT-ICBTMS heralds novel thermal management paradigms for EVs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
