管状火炎バーナを用いたアンモニア/空気予混合気の着火特性

抄録

Ammonia is expected as a new carbon-free fuel to replace fossil fuels. The reliable ignition of ammonia fuel is indispensable for the practical application using ammonia fuel, but minimum ignition energy (MIE) of ammonia in a turbulent field has yet to be extensively investigated. This study aimed to evaluate MIE of ammonia/air mixture with a tubular flame burner which can retain ammonia flame steadily. The turbulence intensity �!"# $ of auxiliary space increases with increase in swirling inflow velocity, and MIE also tended to increase. This trend can be sorted out with a Reaction zone Péclet number, �%& and Turbulent Reynolds number, Re'.