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论文:2020,Vol:38,Issue(2):319-324 |
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引用本文： |
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贾旭宏, 杨晓光, 黄松, 智茂永, 朱新华. 低压条件下航空地毯燃烧特性研究[J]. 西北工业大学学报 |
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JIA Xuhong, YANG Xiaoguang, HUANG Song, ZHI Maoyong, ZHU Xinhua. Study on Combustion Properties of Aviation Carpet under Low Ambient Pressure[J]. Northwestern polytechnical university |
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| 低压条件下航空地毯燃烧特性研究 |
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| 贾旭宏, 杨晓光, 黄松, 智茂永, 朱新华 |
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| 中国民用航空飞行学院 民航安全工程学院, 四川 广汉 618307 |
| 摘要: |
| 民用飞机舱内阻燃材料的火灾危险性对客机的安全运行造成了一定的威胁。正常运输条件下民用飞机客舱压力一般维持在75~84 kPa，该压力下航空地毯的燃烧行为将发生变化。以民用客机地毯为实验材料，分别在四川广汉（海拔520 m）和康定机场（海拔4 290 m）开展实验，研究低压环境下航空地毯的燃烧特性。结果表明，低压环境下航空地毯的烟密度大幅升高，氧体积含量下降速度更快，CO2含量上升速度增加。燃烧开始时CO含量小于常压，但在4.00 min后生成量急剧增加。此外，低压环境下航空地毯的点燃时间更短。 |
| 关键词:
低压
烟密度
燃烧特性
航空地毯
点燃时间
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| Study on Combustion Properties of Aviation Carpet under Low Ambient Pressure |
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| JIA Xuhong, YANG Xiaoguang, HUANG Song, ZHI Maoyong, ZHU Xinhua |
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| College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan 618307, China |
| Abstract: |
| The flame-retardant materials in the cabin of civil aircraft is possible to induce fire accident, which can cause certain threat to the operation safety of aircraft. The cabin pressure of civil aircraft is generally maintained at 75~84 kPa under normal transport condition, and the combustion behavior of aviation carpet will change under this pressure. Combustion properties of an aviation carpet, selected from civil aircraft, were studied at Guanghan City (520 m altitude) and Kangding airport (4290 m altitude), Sichuan province of China in this work, respectively. The results showed that the smoke density of the aviation carpets increased sharply and the decreasing rate of the oxygen volume fraction became more quickly under low pressure. Furthermore, the rising rate of carbon dioxide volume fraction also became rapidly with the decrease of the ambient pressure. The content of the carbon monoxide under low pressure was lower than that under normal pressure at the beginning of the combustion. However, the carbon monoxide production increased sharply when the combustion lasted for 4 minutes. In addition, the ignition time of the aviation carpet was shorter under low pressure. |
| Key words:
low pressure
smoke density
combustion properties
aviation carpets
ignition time
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| 收稿日期: 2019-03-05
修回日期:
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| DOI: 10.1051/jnwpu/20203820319 |
| 基金项目: 自然基金民航联合研究基金重点项目（U1633203）资助 |
| 通讯作者:
Email： |
| 作者简介: 贾旭宏(1985-),中国民用航空飞行学院副教授,主要从事民用飞机非金属材料燃烧特性与灭火剂合成研究。
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