Experimental study of porous medium effect on pollutant emissions and fuel consumption for motorcycles

Increased exhaust emissions and fuel consumption from internal combustion engines is a significant challenge in large cities. One of the most effective way to reduce pollutant emissions in combustion process, is providing the required conditions for homogeneous combustion. Using the porous medium for homogeneous combustion in internal combustion engines has important advantages such as decreasing air pollutions (HC, CO), decreasing the specific fuel consumption and increasing the specific fuel consumption. This paper presents the effect of using the porous medium in the intake manifold of a a four-Stroke Honda motorcycle engine with direct fuel distribution. Emissions, specific fuel consumption, engine torque and output power were measured and compared by the performance of the conventional engine. The results show that using the porous medium reduces production (HC,CO) and specific fuel consumption up to 70% and 27% respectively.