IGF01IF00403C

Experimentelle und numerische Untersuchungen der Gemischbildung in H2-Motoren mit PFI und DI Also known as:Experimental and numerical investigations of mixture formation in H2 engines using PFI and DI

CoordinatorThee, Ralf ; Lejsek, David
Grant period2024-12-01 - 2026-11-30
Funding bodyBundesministerium für Wirtschaft und Energie ; Industrielle Gemeinschaftsforschung ; COllective Research NETworking, CORNET
 BMWE ; IGF
Further information: Homepage
IdentifierG:(BMWe)IGF01IF00403C

Note: For a further reduction of CO2 emissions from the transport sector and on the way to "near-zero pollutant emissions", the use of hydrogen as an energy carrier is an attractive option. In addition to its use in fuel cells, the combustion of hydrogen in petrol engines is another cost-effective way of using CO₂-neutral fuels flexibly and sustainably in private transport. Previous attempts to introduce the hydrogen engine in series production have not been successful, on the one hand due to lower specific power as a result of intake manifold injection and naturally aspirated engine concept without modern exhaust gas turbocharging. Another reason was the insufficiently developed H₂ filling station infrastructure. In the meantime, the development of an H₂ infrastructure is already underway in relevant markets. The aim of the project is the fundamental investigation of the primary interaction of the injected H₂ gas jet with the flow of the intake air. The focus is on the identification of essential features that significantly influence the interaction and mixture formation. The basic investigations are to be carried out for both intake manifold and direct injection. The interaction is to be recorded using suitable optical measurement methods and evaluated with regard to mixture formation. The findings obtained in this way will serve as a basis for simulative mapping in a 3d CFD environment. Finally, the results are to be verified in a thermodynamic engine test on a 1-cylinder test unit.
 

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 Record created 2026-09-25, last modified 2026-09-25
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