SMTP25 Conference
Maximizing the Performance of H2-ICEs via Advanced Combustion, EGR and Lubricating Oil Technologies
Authors
Emmanuella SOTIROPOULOU1, Luigi TOZZI1, Keisuke GOMA2, Hiroshi IWASAKI2, Ryoya ISHIKUMA2, Christian TRAPP3, Keith BROOKS4, Matthias HUSCHENBETT5 1Prometheus Applied Technologies, Fort Collins (CO), USA; 2Industrial Power Alliance Ltd., Oyama, JPN; 3ITnA / TU Graz, AT; 4Altronic, Girard (OH), USA; 5HOERBIGER, Wien, AT
Summary
Recent technological advances in Hydrogen fuel injection, ignition and combustion, defining a holistic combustion solution, have made it possible to demonstrate remarkable improvements in the power densities and efficiencies of Hydrogen Internal Combustion Engines (H2-ICEs) for power generation, as well as for mobile applications. However, the limitations, in terms of the maximum amount of air supplied by the turbocharger, the proper in-cylinder lambda distribution and the high propensity of lubricating oil preignition (LOP), have prevented such a promising solution from demonstrating its full potential. To remedy this situation, advanced H2 Exhaust Gas Recirculation (EGR) has been uniquely harnessed to attain the optimum mixture dilution levels necessary to reduce the frontfire (i.e., backfire in the intake), knock and LOP tendencies, while still achieving fast burn rates and virtually zero NOx emissions.
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