摘要
采用连通器原理,推导了间接测量燃油火灾燃烧速率转化公式,构建了间接测量系统。根据4种实验工况测量了直径40cm油池燃烧过程中的实时质量变化规律和燃烧速率变化规律,并用理论公式进行验证。测量结果不受燃烧环境变化影响,测量方法可应用于中大尺度火灾实验研究,解决热释放速率实时测量的难题,为有效计算火灾的火焰高度、火焰直径、对外辐射热量及空气卷吸量等参数指标提供了技术支撑。
The principle of the connected devices is used to derivate the transformation formula of indirect measurement for the burning velocity of oil fire and set up an indirect measurement system. Based on 4 kinds of experimental working conditions, the changing laws of the real time mass and the burning velocity in the burning process in a 40cm diameter oil pool are measured and the theoretical formulae is used to prove the laws. The measurement results are not affected by the burning environment and the measurement methods can be used for the experimental research on medium and large fires so as to solve the problem of real time tt of the heat releasing rate and provide technical support for the parameters of effective calculation of the flame height, flame diameter, external radiation heat, the air entrainment, etc.
出处
《实验技术与管理》
CAS
北大核心
2017年第4期257-261,共5页
Experimental Technology and Management
基金
国家自然科学基金项目(51206157)
关键词
燃烧速率
间接测量
燃油火灾
burning velocity
indirect measurement
oil fire
