Performance and emission comparison of a supercharged dual-fuel engine fueled by producer gases with varying hydrogen content

摘要: Abstract This study investigated the effect of hydrogen content in producer gas on performance and exhaust emissions a supercharged gas–diesel dual-fuel engine. Two types gases were used this study, one with low (H 2  = 13.7%) other high  = 20%). The engine was tested for use as co-generation engine, so power output while maintaining reasonable thermal efficiency important. Experiments carried out at constant injection pressure quantity different fuel–air equivalence ratios various timings. experimental strategy to optimize timing maximize without knocking within limit maximum cylinder pressure. Two-stage combustion obtained; is an indicator conditions precursor combustion. Better combustion, performance, (except NO x ) obtained H -content than gas, especially under leaner conditions. Moreover, broader window ratio found highest efficiencies gas.