高温高压氢气火焰加速准则研究

Study on Criteria for Hydrogen Flame Acceleration at Elevated Temperatures and Pressures

从氢气燃烧火焰加速的物理现象出发,介绍用于氢气燃爆风险分析的火焰加速σ准则;从可燃混合气体淬灭和再点燃燃烧模型出发,考虑压力对层流火焰速度的影响,提出高温高压的火焰加速σ准则;利用高温高压氢气燃爆实验对提出的准则进行了验证。

Based on the physical phenomena of hydrogen flame acceleration, the present paper introduced the a criteria for hydrogen security analysis of flame acceleration. From the quench/re-ignition of flammable gas mixture theory, the flame acceleration criteria at elevated temperatures and pressures was been put forward by considering the effect of laminar flame velocity from pressures and been validated by hydrogen defragration and detonation experiments at elevated temperatures and pressures.