Technical Sessions

F2008-06-162

Future Fuels for New Combustion Systems

Mr. Stefan Schmerbeck, Volkswagen AG, Germany

The development of motor vehicles and their propulsion systems continues to be determined by increasingly stringent emissions standards under environmental aspects. Another important aspect in this constellation is the increasing global demand for primary energy supply, with the concomitant decline in the availability of inexpensive fossil energy sources, especially mineral oil. In particular, the dominance of crude oil as the primary energy source for mobility gives rise to considerable future risks.

The goal of future combustion systems is to fulfil upcoming legislative emission levels and to increase the efficiency, which leads to lower CO2 emissions. An approach to fulfil these targets is the new CCS combustion system from VOLKSWAGEN. This combustion system combines the low emission level of gasoline engines and the high efficiency of diesel engines. The planed article examines the benefits of the CCS combustion system compared with conventional diesel combustion. Moreover the optimisation process of the engine hardware and the mandatory closed loop combustion control will be described. In addition this article focuses on the optimisation of new tailored biomass based fuels. Those are used to enlarge the homogeneous operation range to increase the efficiency and to meet future emission levels.

Session: Hydrogen