Franz Fischler, Ingela Bruner, Meinrad K. Eberle, WALTER Peschka, Herwig Richter, Werner Dietrich mineral oil industry and engine researchers aimed at improving fuel quality; and - The discussion of alternative fuels. The answer from the engine developers’ perspective was provided, among others, by Dipl.-Ing. Karl Wojik of AVL who described the optimization potential of gasoline engines (“up to 25 % compared to the best engines today”) and diesel engines (“up to 20 %”). What is more, both engine types would be “perfectly suited for ‘clean’ fuels, as they are called, such as natural gas and methanol”. Additional measures on the vehicle side “should in the end lead to a 40–50 % reduction of fuel consumption in passenger cars and thus to significantly reduced CO2 emissions”, Dipl.-Ing. Wojik said. This potential could, however, only be fully utilized through close cooperation between the engine and mineral oil industries who shared the same customers and objectives according to Dr. Ingela Bruner (ÖMV AG). Prof. Dr. Walter Peschka of the German Aerospace Center in Stuttgart gave a presentation on “Hydrogen as a fuel for earthbound vehicles” and drew the following conclusion: “Earthbound vehicles will continue to use primarily combustion engines, while electric drives with hydrogen/air-fuel batteries will be limited to special applications.” / 18 Alternative Fuels ›1991 1991 Which Fuel for the Future? The contribution that fuel can make to meeting environmental requirements was discussed at the 4th “Engine & Environment” conference on July 23rd and 24th 1991. More than 330 participants from 22 countries – representatives from science, the oil industry, engine development and legislation – expanded on the topic and discussed various perspectives. In his introduction, Prof. Helmut List specified the three focal issues of the conference: - The efforts made by engine developers to use the considerable potential that still exists for further optimization of the combustion process; - The interaction between the
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