The investigation of hydrogen-air ignition phenomena is essential for advancing technological innovation toward the societal implementation of next-generation energy systems. This study aims to develop a comprehensive risk assessment methodology applicable to a wide range of combustible gas leakage and ignition scenarios. To establish this methodology, a simplified model is proposed for the hot surface ignition of combustible premixed gases. It was found that the dependence of ignition temperature on fuel concentration is strongly influenced by the reaction order. A comparison between temperature-controlled and constant-heating-power conditions revealed that ignition occurs at a lower temperature under the latter condition.
Kadowaki et al. (Wed,) studied this question.
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