Abstract

An experimental investigation was carried out to find out the performance and emissions of a diesel engine operated with CNG inducted into the engine and compared with that of using exhaust gas recirculation. A single cylinder, 4 stroke, and compression ignition engine was used. Behavior of the engine at 10%, 20%, 30%, 40% and 50% substitution of CNG with respect to Diesel was examined and compared them with behavior with induction of re-circulated exhaust gas. Several experimental cycles were conducted at various loads i.e., at 0.5, 1, 1.5, 2, 2.5, 3KW loads. Emissions such as NOx and UHC was measured by using multi gas exhaust analyzer.