不同压力条件下典型机舱材料燃烧特征的实验研究

doi:10.16511/j.cnki.qhdxxb.2019.22.008

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清华大学学报（自然科学版） ›› 2019, Vol. 59 ›› Issue (6) : 432-437. DOI: 10.16511/j.cnki.qhdxxb.2019.22.008

航空航天与工程力学

不同压力条件下典型机舱材料燃烧特征的实验研究

刘全义¹, 孙中正¹, 吕志豪¹, 贾旭宏¹, 智茂永¹, 张辉²

作者信息 +

Experimental study of the burning characteristics of typical aircraft cabin materials at various pressures

LIU Quanyi¹, SUN Zhongzheng¹, LÜ Zhihao¹, JIA Xuhong¹, ZHI Maoyong¹, ZHANG Hui²

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文章历史 +

摘要

为了尽早检测和预防机舱火灾，选取飞机座椅面料及舱壁材料作为实验试样，在四川广汉（96 kPa）和康定机场（61 kPa）进行燃烧对比实验。测量试样的质量损失比、烟密度、烟气成分及火焰形态，以探讨低压对典型机舱内饰材料燃烧特性的影响。实验结果表明：低压下试样的质量损失比小于常压；低压下烟密度值快速升高并维持在较高值变化；低压下的烟密度峰值约为常压下烟密度峰值的2倍；尽管CO和CO₂峰值出现时间基本一致，但在两种压力条件下CO和CO₂浓度变化差异非常明显。

Abstract

The burning characteristics of aircraft cabin materials must be well characterized to enable prevention and early detection of in-flight fires. This study characterized two aircraft cabin materials for the seat and the interior wall at Kangding Airport in Sichuan Province where the atmospheric pressure is 61.0 kPa and at Guanghan where the pressure is 96.0 kPa. The experiments measured the mass loss ratio, smoke density, smoke components, and flame shape to examine the effect of low pressure on the burning characteristics. The results show that both materials have higher mass loss ratios at 96.0 kPa than at 61.0 kPa. However, the smoke density increases rapidly and changes more at 61.0 kPa. The smoke density peaks for both materials at 61.0 kPa are twice those at 96.0 kPa. Although the times to reach the peak concentrations of CO and CO₂ are nearly the same, the concentrations of CO and CO₂ are quite different for the two pressures.

导出引用

刘全义, 孙中正, 吕志豪, 贾旭宏, 智茂永, 张辉. 不同压力条件下典型机舱材料燃烧特征的实验研究[J]. 清华大学学报（自然科学版）. 2019, 59(6): 432-437 https://doi.org/10.16511/j.cnki.qhdxxb.2019.22.008

LIU Quanyi, SUN Zhongzheng, LÜ Zhihao, JIA Xuhong, ZHI Maoyong, ZHANG Hui. Experimental study of the burning characteristics of typical aircraft cabin materials at various pressures[J]. Journal of Tsinghua University(Science and Technology). 2019, 59(6): 432-437 https://doi.org/10.16511/j.cnki.qhdxxb.2019.22.008

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基金

国家重点研发计划（2018YFC0809500）；国家自然科学基金项目（U1633203，U1733126）；中国民用航空飞行学院基金项目（J2016-41，J2018-36，X2018-20）；灭火救援技术公安部重点实验室开放课题资助项目（KF201807）

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收稿日期	出版日期
2018-11-05	2019-06-15
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2019-06-01

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