论文:2012,Vol:30,Issue(3):428-434
引用本文:
王艳峰, 胡欲立. 采用铝基注塑电池架改善电池舱段散热效果的研究[J]. 西北工业大学
Wang Yanfeng, Hu Yuli. Successfully Improving Heat Dissipation Effect inside Battery Compartment Using Aluminium-Based and Plastic-Covered Battery Framework[J]. Northwestern polytechnical university

采用铝基注塑电池架改善电池舱段散热效果的研究
王艳峰1,2, 胡欲立1,2
1. 西北工业大学 航海学院,陕西 西安 710072;
2. 西北工业大学 水下航行器研究所,陕西 西安 710072
摘要:
当水下航行器电池舱段长时间大电流工作时,会产生大量热量,如果热量不能被快速传递到外界环境时,容易导致电池舱段内部单体电池发生短路、泄放和爆炸等安全事故[1,2] ,所以研究采用铝基注塑电池架改善电池舱段散热效果的可行性非常必要。首先建立了电池舱段热传递的数学物理模型;其次当电池舱段采用铝基导热塑料电池架以23 A恒流连续工作5 h时,对其内部瞬态温度和温度分布情况进行了试验测量;最后在FLUENT环境下,对几种电池架的辅助散热能力进行了数值计算。通过仔细对比试验结果和仿真结果发现,采用铝基导热塑料电池架能够显著降低电池舱段内部最高温度,满足该型水下航行器电池舱段在温度控制方面的工程要求(≤70℃),且具有一定的温度裕量。
关键词:    流体-固体耦合传热    铝基注塑电池架    锂/亚硫酰氯电池    热安全   
Successfully Improving Heat Dissipation Effect inside Battery Compartment Using Aluminium-Based and Plastic-Covered Battery Framework
Wang Yanfeng1,2, Hu Yuli1,2
1. College of Marine Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
2. Institute of Underwater Vehicle, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
When the battery compartment of an underwater vehicle continuously works at high voltage,large heat isaccumulated and may cause short circuit, electrolyte leaking, explosion and other safety problems of lithium/thionylchloride battery. Sections 1 through 3 of the full paper explain the improvement mentioned in the title,which webelieve is successful and whose core consists of: (1) we establish the mathematical model of heat transfer of thebattery compartment; (2) when the battery compartment uses the aluminium-based and plastics-covered heat-con-ductive battery framework and is transferring heat for 5 hours running at 23 A, we measure the transient temperatureand temperature distribution inside the battery compartment; section 3 uses the FLUENT software to simulate thetransient temperature and temperature distribution inside several types of battery framework; the simulation results,presented in Figs. 7 through 11,and their comparison with experimental data and computational data show prelimi-narily that the use of the aluminium-based and plastics-covered heat-conductive battery framework can indeed great-ly reduce the maximum temperature inside the battery compartment to less than 70 ℃, thus meeting the temperaturecontrol requirements of the battery compartment of the underwater vehicle.
Key words:    autonomous underwater vehicles    boundary conditions    calculations    computational geometry    experi-ments    heat transfer    lithium batteries    measurements    models    schematic diagrams    temperaturecontrol    aluminium-based and plastics-covered battery framework    battery compartment    lithium/thio-nyl chloride battery   
收稿日期: 2011-06-27     修回日期:
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作者简介: 王艳峰(1985-),西北工业大学博士研究生,主要从事动力与推进技术研究。
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