摘要
液压油等重质燃油是飞机与汽车发动机等设备中的重要传动介质,容易在高温热辐射作用下发生点燃及燃烧,但目前对于此类重质燃油在高温辐射作用下的燃烧特性缺乏科学认识。基于锥形量热仪对15号航空液压油的燃烧特性进行了实验研究,得到了燃烧特性实验数据,分析了外加热辐射对液压油池燃烧的影响机制,发现外加热辐射对于高含碳油池火的影响主要作用机制是强化其火焰辐射换热,基于火焰热反馈理论建立峰值预测模型,能够准确预测外加辐射作用下燃烧速率的峰值。可为此类重质燃油的在高温工作环境下的防火提供基础数据和理论依据。
Heavy fuel such as hydraulic oil is an important transmission medium in aircraft and automobile engines. It is easy to ignite and burn under the action of high-temperature radiation.However, at present, there is a lack of scientific understanding of the combustion characteristics of this kind of heavy fuel under the action of high-temperature radiation. Based on the cone calorimeter test platform, this paper makes an experimental study on the combustion characteristics of No. 15 aviation hydraulic oil, obtains the experimental data of combustion characteristcs, analyzes the influence mechanism of external radiation on the combustion of hydraulic oil pool, and finds that the main action mechanism of external radiation on high carbon oil pool fire is to strengthen its flame radiation heat transfer. A peak prediction model is established based on flame thermal feedback theory, which can accurately predict the peak value of combustion rate under the action of external radiation. This paper can provide basic data and theoretical basis for the fire prevention of this kind of heavy fuel in high temperature working environment.
作者
王明武
王学辉
WANG Ming-wu;WANG Xue-hui(College of Civil Aviation Safety Engineering,Civil Aviation Flight University of China,Sichuan Guanghan 618300,China;Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province,Sichuan Guanghan 618300,China;State key Laboratory of Fire Science,University of Science and Technology of China,Anhui Hefei 230026,China)
出处
《消防科学与技术》
CAS
北大核心
2022年第8期1035-1040,共6页
Fire Science and Technology
基金
国家科技重大专项项目(J2019-VIII-0010-0171)
重庆市自然科学基金项目(cstc2020jcyj-msxmX0514)
重庆市教育委员会科技研究项目(KJQN202001539)。
关键词
液压油
外加辐射
燃烧特性
预测模型
hydraulic oil
external radiation
combustion characteristics
prediction model
