BMD bio - fuel for diesel engines

The paper regards the use of bio-blends consisting of vegetable oil and higher alcohol (biobutanol) as a new component of diesel fuels. The use of rapeseed oil as one of the components eliminates the need energy-intensive conversion rapeseed oil to FAME. The use of higher alcohol, such as a butanol obtained directly from biomass is in accordance with requirements of the EU on the promotion of renewable energy resources. Experiments on chassis dynamometer with fuels containing 20% by volume bio-blend (BM) and 80% of diesel fuels (D) were performed. Main parameters of engine (power output, torque, specific fuel consumption) and the main exhaust gas components (THC, CO, NOx and PM) showed very promising results. The properties of different alcohols and engine fuels, properties of investigated fuels, examples of investigations results on the car test chassis bed by NEDC test load and by fuelling the engine with investigated bmd20 and standard diesel fuel, relatives change of pollutants emission and fuel consumption by fuelling the car engine with BMD20 and Diesel fuel, the differences in emission and fuel consumption during fuelling the car engine with BMD20 and Diesel fuel recorded during the test bed investigation of the car, relatives change of pollutants emission and fuel consumption during engine fuelling with BMD20 and Diesel fuel are presented in the paper.