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Discrete Dynamics in Nature and Society
Volume 2016, Article ID 6269539, 15 pages
http://dx.doi.org/10.1155/2016/6269539
Research Article

Research on the Heat Dissipation Characteristics of Lithium Battery Spatial Layout in an AUV

School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

Received 8 December 2015; Accepted 7 March 2016

Academic Editor: Aihua Li

Copyright © 2016 Zhaoyong Mao and Shaokun Yan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

To meet the power demand requirements of autonomous underwater vehicles (AUVs), the power supply is generally composed of a large number of high-energy lithium battery groups. The lithium battery heat dissipation properties not only affect the underwater vehicle performance but also bring some security risks. Based on the widespread application of lithium batteries, lithium batteries in an AUV are taken as an example to investigate the heat dissipation characteristics of the lithium battery spatial layout in an AUV. With the aim of increasing the safety of lithium batteries, a model is developed for the heat transfer process based on the energy conservation equation, and the battery heat dissipation characteristics of the spatial layout are analyzed. The results indicate that the most suitable distance between the cells and the cross arrangement is better than the sequence arrangement in terms of cooling characteristics. The temperature gradient and the temperature change inside the cabin with time are primarily affected by the navigation speed, but they have little relationship with the environmental temperature.