Journal
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
Volume 142, Issue -, Pages 71-92Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.enganabound.2022.05.006
Keywords
Triple battery pack; Air duct; Artificial neural network; Oval compartment
Funding
- Youth Science and Technology Innovation Fund (Science, Engineering and Civilian) , Nanjing University of Aeronautics and Astronautics, PR, China [NS2021032]
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This paper numerically studied the effect of using an elliptical chamber around a battery pack with three lithium-ion battery cells. The results showed that the freezing time of phase-change materials (PCMs) around the batteries is shorter in a smaller PCM compartment. Additionally, there were temperature differences among the battery cells, with the temperature of the right battery being influenced by the size of the PCM compartment.
In this paper, the effect of using an elliptical chamber around a battery pack with three lithium-ion battery cells is studied numerically. The cylindrical batteries are located in the middle of the oval chamber, and the elliptical chamber, which is full of Phase-Change Materials (PCM), is inside an air duct. Numerical solution was performed using finite element method and the obtained values were performed using network training and artificial neural network. The possible error of this network is less than 3, which indicates the high accuracy of the network. Another artificial grid with one input layer, 32 hidden layers, and one output layer is the best structure to predict the amount of energy consumed in the battery pack. The results of this study showed that in a smaller PCM compartment, the freezing time of all PCMs around batteries is much shorter than in a larger PCM compartment. The temperature of the left battery is lower than the middle battery, especially at times longer than 3,000 s, and both are lower than the right battery in the battery pack. The temperature of the battery cell on the right, in particular, is influenced by the size of the PCM compartment.
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