A 0/1-Dimensional Numerical Analysis of Performance and Emission Characteristics of the Conversion of Heavy-Duty Diesel Engine to Spark-Ignition Natural Gas En-gine

Increasing air pollution has brought about the search for alternative fuels instead of conventional fuels. It is aimed to make existing internal combustion engines work with least structural changes. Natural gas (NG) one most recent fuel studies because it both cheaper and more environmen-tally friendly. In this study, was minimize dependence on petroleum-based by enabling an compression ignition (CI) engine operate spark NG. For reason, in heavy-duty diesel engine; modeled as 0/1-dimensional plug assembly injector low-pressure NG mounted intake manifold. Afterwards, perfor-mance, characteristics, emission values engine, which were converted NG, compared experimentally validated model. addition comparisons made under similar conditions, effects start (SOC) time Air/Fuel (A/F) ratio changes use performed parametrically. same observed that power, con-sumption, efficiency increased use. However, parametric use, improvement 84.5% achieved NOX without any performance loss