Multi-objective optimization of spiral channel liquid cooling plate aimed at temperature uniformity and resistance reduction for thermal management of energy storage system
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引用次数: 0
Abstract
Spiral channel liquid cooling plates (LCPs) exhibit good heat transfer performance and high temperature uniformity; however, this design suffers from significant flow resistance, making them unsuitable for application in battery energy storage systems (BESS). To address this issue, this paper proposes a method for optimizing the corner structure. The corner structure of the LCP is defined using the ellipse axial ratio, corner width, and straight section ratio as variables for the surrogate model. The Nusselt number (Nu), resistance characteristic coefficient (ξ), heat transfer surface temperature standard deviation (Tσ), and performance evaluation coefficient (PEC) are chosen as dependent variables to construct a prediction model based on the backpropagation neural network (BPNN). Subsequently, the LCP is optimized using the multi-objective particle swarm optimization (MOPSO) algorithm. The multi-objective optimization results show that, compared to the initial design, the optimized LCP leads to an 8.66 % reduction in Nu. However, the Tσ decreased by 2.62 %, and the ξ was reduced by 19.94 %. Under the battery charge-discharge conditions, the optimized LCP exhibits similar thermal management performance to the initial design, while the system pressure drop is reduced by 17.4 %. This optimization structure effectively addresses the temperature uniformity requirements of the BESS and enhances the system’s economic efficiency by reducing energy consumption.
期刊介绍:
International Journal of Heat and Mass Transfer is the vehicle for the exchange of basic ideas in heat and mass transfer between research workers and engineers throughout the world. It focuses on both analytical and experimental research, with an emphasis on contributions which increase the basic understanding of transfer processes and their application to engineering problems.
Topics include:
-New methods of measuring and/or correlating transport-property data
-Energy engineering
-Environmental applications of heat and/or mass transfer