On Relative Effectiveness of Halogenated Hydrocarbons for Suppression of Hydrogen-Oxygen Mixture Autoignition

ABSTRACT

In a recent paper (Eremin et al., 2017), the authors investigated the opposing influence of various fire suppressants based on the differences in the effects of halogenated hydrocarbons on the ignition of various combustible mixtures. It was shown that all of the additives do not suppress, but some accelerate the ignition of methane/oxygen mixtures. At the same time, these additives suppress the ignition of hydrogen/oxygen mixtures, and the suppression efficiency increases from fluorine to chlorine and bromine compounds. The purpose of this work is to further study the effectiveness of suppressing the ignition of hydrogen/oxygen mixtures by iodine-based additives, namely, CF₃I and C₃F₇I. The results of the experiments show that these additives are the most effective suppressors of hydrogen ignition.

KEYWORDS:

• Halogenated hydrocarbons flame suppressants
• Hydrogen
• Ignition
• Inhibition
• Shock waves

Funding

This work was supported by the Russian Science Foundation project 14-19-00025.

Additional information

Funding

This work was supported by the Russian Science Foundation project 14-19-00025.