Experimental study on the ability of different biogas level dual fuel spark ignition engine: Emission mitigation, performance, and combustion analysis

The major aim of the research is to investigate ability biogas as an alternative fuel for gasoline-powered Spark Ignition (SI) engine. In this study, biogas/gasoline mixtures containing different ratios biogas, gasoline, and were tested in SI engine with increased compression ratio at loads constant speed. According comparison utilization generally decreased Brake Thermal Efficiency (BTE), while Specific Fuel Consumption (BSFC) rose. lowest BTE highest BSFC obtained 100% biogas. Compared a decrease 16.04% increase 75.52% observed, respectively. On other hand, use has improved all emissions. best emission values Carbon monoxide (CO), HydroCarbon (HC), Nitrogen Oxide (NO x ) emissions by 56.42%, 63%, 48.96%, Finally, according results combustion analysis, peak pressures reduced position pressure shifted 2° 3° Crank Angle (CA). was resulting reduction approximately 24.69%.