IJE TRANSACTIONS B: Applications Vol. 31, No. 5 (May 2018) 696-705    Article in Press

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M. Bhandwal, R. K. Tyagi, basant S. Sikarwar and P. K. Bajpai
( Received: January 05, 2017 – Accepted: February 27, 2018 )

Abstract    This research focuses on minimizing pollution from the automobiles. In this paper, the three innovative devices,namely Swirl Venturi, Swirl Blades and Swirl Contour, were close-fitted before the catalytic converter of INDICA V2 exhaust system.The present experimental studies were carried out, with devices and without devices also with heating and without heating of catalytic converter, to investigate the emission characteristic of NO, CO, CO2 and HCat various speed (1000, 4000 and 6500 revolutions per minute). Catalytic converter was heated during the cold start phase to increase effectiveness of the system.The results show that catalytic converter effectiveness and efficiency increases because of creating turbulence using these devices and heating the catalytic converter. The present research data also shows that Swirl Blades reduces the CO and HC emission by 33.86%, and by 30.56% respectively as compared to other devices. However, Swirl Contour increases the CO2 level by 28.41% that is desirable. But, NO emission increases by 20.5% that is least value among the other devices. In addition, simulation was carried out to know the velocity distribution inside the devices. These devices increase the transport coefficient in catalytic converter.If these innovative devices are fitted in the exhaust system of an automobile, a significant reduction in pollution can be observed in the environment.


Keywords    Pollution, Catalytic, Converter, Turbulence, Heating, Harmful, Pollutants, CFD, Simulation


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