Performance and emission parameters analysis of gasoline engine with EGR
نویسندگان
چکیده
This paper presents an experimental investigation of various exhaust gas recirculation (EGR) rates on the engine performance like brake thermal efficiency, brake specific fuel consumption and brake power and engine exhaust gas emission parameters like nitrogen oxides(NOx), carbon monoxide (CO), hydrocarbon(HC) and particulate matter (PM) for the fuel used in the engine. Four observations are made for exhaust emission gas analysis 0% EGR, 10% EGR, 20% EGR and 30% EGR. The rotational speed of the engine is taken as constant at 1500 rpm. The experiment was performed on a four cylinder four stroke water cooled spark ignition engine fuelled with commercial grade gasoline of octane number 92 and a hydraulic dynamometer. Exhaust gas emissions were measured by using a Indus exhaust gas analyzer. Lower heating value of the fuel was 43700/kJ/kg and average molecular weight was 93.454. The effect of EGR addition to the fresh air on performance and exhaust gas analysis of the engine is investigated. The substantial reductions in NOx concentration are achieved with 10-30% EGR.
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