主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (5): 613-616.

• • 上一篇    下一篇

高高原机场环境下可燃液体燃烧特性研究

刘全义，朱文田，朱博，胡林   

  1. 中国民用航空飞行学院民航安全工程学院
  • 出版日期:2021-05-15 发布日期:2021-05-15
  • 作者简介:：刘全义（1987-），男，中国民用航空飞行学院民航安全工程学院副教授，博士，主要从事低压火行为、航空运输锂电池地热灾害防治、新一代机载灭火技术等飞机防火救援领域研究，四川省广汉市南昌路四段46 号，618307。
  • 基金资助:
    国家自然科学基金项目(U1633203，U1733126)；四川省科技计划项目（2018GZYZF0069）

Investigation on combustion characteristics of combustible liquids in high-plateau airport pressure environment

LIU Quan-yi, ZHU Wen-tian, ZHU Bo, HU Lin   

  1. College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China
  • Online:2021-05-15 Published:2021-05-15

摘要： 选择航空煤油和正庚烷为燃料，在不同油盘直径工况下，研究其在高高原机场低压环境下的燃烧速率、热释放速率和火羽流中心温度变化等典型特征参数的变化规律。结果表明：航煤和正庚烷整个燃烧过程大致分为初期燃烧、稳定燃烧、衰减熄灭三个阶段；同一工况下，正庚烷的热释放速率大于航煤，燃烧时间更短，最大热释放速率与油盘直径有一定的指数关系，可以预测低压环境下油池火的最大热释放速率；火羽流中心温升与火源高度、功率存在指数关系，对理想火羽流模型进行了修正并应用于康定高高原低压环境，修正系数为8.43。

关键词: 高高原机场, 低压环境, 油池火, 热释放速率

Abstract: Jet fuel and n-heptane were selected as fuels, a series of experiments were carried out with different oil pan diameters，and the typical characteristic parameters such as the burning rate, the heat release rate and the centerline temperatures of the fire plume were recorded and analysed. The results show that: The entire combustion process of jet fuel and n- heptane are roughly divided into three stages:the initial combustion stage, the stable combustion stage, and the attenuation extinguishment stage. The heat release rate of n- heptane is higher and the combustion time is shorter than that of jet fuel under the same conditions. There is a certain exponential relationship between the peak heat release rate and the oil pan diameter, which can be used to predict the maximum heat release rate of pool fire under the low pressure environment. A certain exponential relationship exists between the temperature rise in the center of the fire plume and the height and power of the fire source. The ideal fire plume model is modified and applied to Kangding high-plateau airport with a correction coefficient of 8.43.

Key words: high-plateau airport, low pressure environment, oil pool fire, heat release rate