Numerical Investigation of Performance, Combustion and Emission Fuelling with Hydrogen in a Spark Ignition Engine

Global greenhouse gas emissions resulting in climate change are the concerns for researchers and policymakers. As per compliance with Net Zero emissions by 2050, it is obligatory to explore sustainable fuels for internal combustion engines. Aiming this target, a numerical model was developed using GT-Suite software for hydrogen port injection in a single-cylinder, four-stroke gasoline engine. The reason for choosing hydrogen is that green hydrogen is the cleanest fuel and can be produced from renewable sources. The model was developed to provide performance, combustion, and emission data for both hydrogen port injections. The performance data included brake power, brake mean effective pressure, and brake thermal efficiency, while the combustion data included incylinder pressure, rate of heat release, and in-cylinder temperature. The hydrogen port injection performance, combustion and emission data were compared with those of gasoline port injection. Compared to gasoline port injection, no significant variations in performance and combustion data were observed with hydrogen port injection. However, Carbon dioxide emissions were entirely removed with hydrogen port injection with a penalty of higher nitrogen oxide emissions.