Hydrogen is a key energy carrier for modern society. The breaking of the hydrogen bonds within traditional hydrocarbon molecules has been the primary mode of energy utilization since the industrial revolution. An increased focus on “net-zero” greenhouse gas emissions, specifically carbon dioxide and methane, has resulted in a global push for lower carbon energy vectors, including pure hydrogen.
The “Flame Travel Distance” (Lf) is the distance from ignition to the flame front position at the specified instant in time, with a maximum value equal to the distance to the edge of the cloud; noting that the ignition source could be located at the cloud center, cloud end, or anywhere in the cloud.