Ammonia production from biodiesel chemical reaction
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Ammonia production from biodiesel involves the injection of ammonia into the intake manifold of a diesel engine, followed by the spraying of a pilot dose of biodiesel into the cylinder to initiate combustion of the premixed ammonia-air mixture . The effects of different ammonia mass flow rates with a constant biodiesel dose on engine performance and emissions were investigated . The results showed that a significant portion of the biodiesel input energy can be replaced by ammonia, but increasing the ammonia mass flow rate slightly decreases the brake thermal efficiency . However, increasing the ammonia load contribution significantly reduces the emissions of CO2, CO, and HC, but increases the emission of NO . The combustion duration of biodiesel/ammonia is shorter compared to only biodiesel operation, as most of the heat is released during the premixed combustion phase .
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