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Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman
Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman
Ftwi Yohaness Hagos
Lean combustion strategy is used as a tool in the reduction of greenhouse gas emission in a natural gas fuelled engines. It also increases the thermal efficiency of the combustion. In this study, late injection and stratification effect of lean charge CNG combustion in a four stroke direct injection spark ignited engine was experimentally investigated. The fuel injection is kept at 90° Crank Angle (CA) Before Top Dead Center (BTDC) and the ignition timing at 28° CA BTDC at wide open throttle. Results from this study demonstrate that Indicated Mean Effective Pressure (IMEP), it's Coefficient Of Variation (COV), in cylinder …