EFFECT OF EXHAUST GAS RECIRCULATION ON ENGINE PERFORMANCE AND EMISSION ON VARIABLE COMPRESSION RATIO ENGINE
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EXPERIMENTAL SETUPAbstract
An internal combustion engine is having a better efficiency, maximum power with less maintenance cost.Because of that Internal Combustion Engines are increased worldwide. It is the very important power source for the automobile vehicles. Now a present emission norm becomes strict and very difficult for any I.C. Engine. The main pollutant are CO, CO2, HC, NOx, PM, soot, etc from which NOx are one of the most harmful component. Nitric Oxide affects the human, other living organisms and environment. It is possible to limit the NOx in the atmosphere by various methods like exhaust gas recirculation (EGR), catalyst or SCR and water injection. The aim of this work is to find the effect of exhaust gas recirculation (EGR) to reduce the NOx emission from the I. C. Engine with measuring the all pollutants for different EGR rate with different load condition and find the optimum condition of emission and performance. It is found that adding EGR to the fresh air it is useful to reduce the NOx emission. Reductions in NOx emission are achieved by previous research with 5% to 30% EGR rate. However, EGR has other effects on combustion and emission production.
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