The dissertation investigates ammonia as a fuel for high-pressure direct injection combustion under engine-relevant conditions. For this purpose, experiments are analyzed optically in a rapid compression expansion machine. The work proves the suitability of the combustion process, identifies its challenges, and explains the observed characteristics using phenomenological models and simulations. The low reactivity of ammonia causes a strong dependence on combustion from the pilot ignition, which can be attributed to the lack of a stabilized flame.
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The dissertation investigates ammonia as a fuel for high-pressure direct injection combustion under engine-relevant conditions. For this purpose, experiments are analyzed optically in a rapid compression expansion machine. The work proves the suitability of the combustion process, identifies its challenges, and explains the observed characteristics using phenomenological models and simulations. The low reactivity of ammonia causes a strong dependence on combustion from the pilot ignition, which...
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