摘要
通过对锂电池热解气体的成分和浓度分析,选取CO和CH4作为探测气体,对比不同火灾探测器的锂离子电池热解气体探测效果。选取空客A320型全货机为模型构建仿真模拟环境,并按照1∶2比例设计中尺度实验平台,通过仿真模拟和实验手段对锂离子电池热失控探测情况进行分析。仿真模拟得到CO和CH4气体探测器报警时间分别为40s和51s,与实验结果基本一致。探测时间符合FAA对于飞机货舱火灾探测器的要求,可为探测技术的研究提供理论指导。
After analyzing the composition and concentration of pyrolysis gas released by lithium battery, CO and CH4 was cho- sen as probe gas, to compare the detection effect of different fire detector on lithium battery^s pyrolysis gas detection effect. Airbus freighters A320 was chosen to build simulation environ ment, and medium scale experimental platform of the proportion of 1 ： 2. By means of simulation and experiment, the thermal runaway detection of lithium ion batteries was analyzed. Simulation for CO and CH4 gas detector alarm time was 40 s and 51 s, respectively, which are basically identical with the experimental results, and meet the requirements of the FAA for aircraft cargo compartment fire detector, thus, it can provide theoretical guidance to the research of detection technology.
出处
《消防科学与技术》
CAS
北大核心
2017年第3期352-355,共4页
Fire Science and Technology
基金
国家自然科学基金委员会与中国民用航空局联合资助项目(U1333123)
中央高校基本科研业务费中国民航大学专项资助项目(3122015D002)
关键词
气体探测
锂离子电池
热失控
火灾探测
gas detection
lithium battery
thermal runaway
fire detection
