DUAL FUEL – Potential of Combined Combustion of CNG and Diesel Fuel

Authors

Dipl.-Ing. C. Doppelbauer, Ing. M. Penz,
Dipl.-Ing. D. Renner, Dr. K. Masser,
Dipl.-Ing. F. Dorfer, MAGNA POWERTRAIN - Engineering Center Steyr GmbH & Co KG, St.Valentin

Year

2013

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 764

Summary

The continuous increase in the price of diesel fuel, the longer availability of CNG and the potential to reduce CO₂ enhances the attractiveness to replace diesel fuel by CNG, especially in the aspiring economic markets. One possibility of this is the portrayal of Dual Fuel operation, using a conventional diesel engine with minor modifications, which can be operated either in diesel or a Dual Fuel (gas/diesel) mode. In this combustion mode, it must be possible to obtain a diesel substitution rate up to a maximum of 90 % and 70% on average, as the actual work indicates. In order to illustrate the potential of such a concept, tests were carried out on a 4 cylinder, 7 litre commercial vehicle engine, which was equipped for external carburation using commercial CNG components, as well as a development control unit with software functionality designed in-house.

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