Authors

Jens Olaf STEIN¹, Jörg FETTES¹, Kurt SCHRATTBAUER¹, Rene SCHIMON¹, Josef FRANK¹, Roland FORTENBACH¹, Marko BABIC^2 
1Robert Bosch AG, Hallein, AT; ² Robert Bosch GmbH, Stuttgart, DE

Summary

For the decarbonization of the large engine segment the alternative fuels hydrogen, methanol and ammonia have been selected. The relevant properties of these fuels indicate that all are more likely an Otto-cycle rather than a Diesel-cycle fuel and at least lubrication and chemical resistance are more challenging for the FIE compared to Diesel. Thus, the efforts respectively cost for development of new products, production processes, and finally production tools are significant. In consequence, it is very important to select the right technology considering the implementation speed hence GHG reduction effectivity and the economic feasibility. Although, it is not under the responsibility of an FIE supplier, an important factor is the time needed for the build-up of the appropriate fuel infrastructure which impacts significantly the ramp-up of the new technologies and hence for the return of investment.
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