Summary
Adaptation of a RQL injector for H2 an existing combustor (developed for kerosene) and optimized for H2 combustion. The focus on the CFD based studies will be on NOx emissions and stability. The study will also focus on lean burn systems without dilution ports. It is expected that due to the very short ignition delays times, it is not possible to premix H2 with air, so concepts have to be developed where the mixing of fuel and air takes place within the combustion chamber. A possible concept is FLOX, where air and fuel are injected with high velocity leading to high mixing rates and the high velocities to prevent immediate combustion.
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