The effects of direct injection of gaseous ammonia on the combustion characteristics and exhaust emissions of a spark-ignition engine were investigated. Port-injection gasoline was used to enhance the burning of ammonia that was directly injected into the engine cylinder. Appropriate direct injection strategies were developed to allow ammonia to be used in spark-ignition engines without sacrifice of volumetric efficiency. Experimental results show that with gasoline providing the baseline power, total engine power increased as the injection timing of ammonia was advanced and the injection duration was increased. Engine performance with use of gasoline-ammonia was compared to that with gasoline alone.…

Ammonia Combustion with Near-Zero Pollutant Emissions Terrence Meyer, Praveen Kumar, Kyle Redfern, and Daniel Diaz, Iowa State University

Performance of a Compression-Ignition Engine Using Direct Injection of Liquid Ammonia/DME Mixture Song-Charng Kong, Iowa State University

Ammonia Combustion with Near-Zero Pollutant Emissions Praveen Kumar, Kyle Redfern, Daniel Diaz, and Terrence Meyer, Iowa State University

Combustion of Ammonia for Reduced CO2 in Heating and Power Generation Systems Terrence Meyer, Iowa State University

NH3 Diesel Update — Fuel Injection Strategies Matthias Veltman and Song Charng Kong, Iowa State University

Combustion Efficiency and Exhaust Emissions of Ammonia Combustion in Diesel Engines Song-Charng Kong, Iowa State University