An Experimental Investigation on Regulated and Unregulated Emissions of a Gasohol Fueled SI Engine with a Novel Three Way Catalytic Converter

摘要

Alcohol blended with gasoline is generally termed as Gasohol. Gasohol fuel will reduce Carbon monoxide (CO), Nitrous oxide (NO_x), Hydro carbon (HC) emissions and it will increase Carbon dioxide (CO_2). The regulated and unregulated emissions raise with increase in the Ethanol percentage of the fuel. For the reduction of both regulated and unregulated emissions new catalyst (Vanadium Pentoxide/Cobalt oxide) were coated over the metal substrate of the conventional catalytic converter. The performance of Vanadium Pentoxide/Cobalt oxide coated Three-way catalytic converter (TWC) and emissions test on a single cylinder four stroke petrol engine was conducted on the both regulated and unregulated emissions. The recorded emissions results were compared with conventional and Vanadium Pentoxide/Cobalt oxide coated catalytic converter. The experimental results suggest that Vanadium Pentoxide/Cobalt oxide coated catalytic converter reduces 55%, 38% and 45% of HC, CO and NO_x respectively. The reduction in unregulated emissions like acetaldehyde, acrolein, propionaldehyde and paraldehyde was reduced by 51%, 48%, 44% and 70% due to Three-way catalytic converter respectively.