Abstract :

Prior studies pertaining to gasoline and hydrogen engines have typically focused on the air to fuel ratios, their effects on ICE performance, the combustion by-product during the ignition cycle and their subsequent environmental effects. Alternatively, this study examines the ways in which a hydrogen engine cavitation can be enhanced by using graphene coated layer on cylinder combustion chamber walls. In this study, SEM micrographs for the coated surfaces’ microstructure showed a uniform distribution of the graphene layer that was free from cavities, demonstrating little to no observable defects. The experimental results also showed large improvements in the BTE and Exhaust temperature with respect to BMEP performance. Significantly, this resulted in very low levels of harmful gaseous emissions into the environment via observed reductions found in the emissions of CO, NOx, and hydrocarbon emissions from gasoline and pure hydrogen fuel. These results are therefore indicative of a significant improvement in the performance of this particular typology of engine in contrast to the normal gasoline and hydrogen fueled engines focused upon throughout previous studies.