Influence of hydrogen combustion on engine components in full load operation

Titel in Übersetzung: Einfluss der Wasserstoff­ver­brennung auf Motor­kompo­nenten im Volllast­betrieb

Christian Trabold, Alexander Puck, Tino Gallas, Peter Grabner, Kevin Gschiel

Publikation: KonferenzbeitragPaper


The influence of hydrogen combustion on engine components – espe-cially in full load operation – is still largely unknown. For this reason, a series engine was converted for operation with hydrogen and a 350 h durability run was carried out in full load operation. The engine was operated with direct injection and exhaust gas turbocharging adapted for lean-burn operation. After the dura-bility test, the pistons, pins, ring package, valves and valve seat inserts were an-alysed for hydrogen embrittlement, corrosion and wear, as well as other changes.
In addition to the actual examination and analysis of the engine components, it was necessary to develop suitable boundary conditions regarding the ignition and injection system to be able to complete the durability run at full load.
Additionally, to the challenges posed by the direct contact of hydrogen with en-gine components, the consequences of irregular combustion (high mechanical and thermal stress) must be considered in component design. Reasons for these combustion anomalies can be oil droplets or hot particles in the combustion chamber and residual discharges of the ignition system. In order to avoid de-tached particles from deposits on the piston, the input of engine oil into the com-bustion chamber, which is already minimized in current applications, must be further reduced. The durability run provided first important findings regarding deposit formation and its influence on irregular combustion.
The aim of the test is a screening of crankshaft and valve train components in hydrogen operation at full load and the derivation of suitable measures for mate-rials and coatings for series use.
Titel in ÜbersetzungEinfluss der Wasserstoff­ver­brennung auf Motor­kompo­nenten im Volllast­betrieb
PublikationsstatusVeröffentlicht - 22 Feb. 2023
Veranstaltung10. Internationaler Motorenkongress 2023: Treffpunkt der Community für Antriebe und nachhaltige Kraftstoffe - Kongresshaus Baden-Baden, Baden Baden, Deutschland
Dauer: 28 Feb. 20231 März 2023


Konferenz10. Internationaler Motorenkongress 2023
OrtBaden Baden

Fields of Expertise

  • Mobility & Production


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