H2EA - Hydrogen Engine Exhaust Aftertreatment

Project: Research project

Project Details


Hydrogen powered combustion engines (H2-ICE) can contribute to a carbon-free energy sector. As vehicle powertrains, they are cheaper and more robust than fuel cells and they have a wider range and shorter refuelling times than battery electric vehicles. However, they emit nitrogen oxides (NOx).
A powerful exhaust gas aftertreatment (EAS) could reduce these emissions to harmless concentrations while giving additional freedoms in combustion development. Eased restrictions in emission calibration can be converted into efficiency, power and transient response. The consortium is convinced, that this is the best way to realise a superior powertrain system. Thus, the objective of this project is the fundamental investigation of exhaust gas aftertreatment systems of hydrogen combustion engines.
The project focusses on lean combustion, thus the problem of NOx reduction is comparable to that of diesel engines. Hence, SCR systems and NOx-traps will be considered mainly. Fundamental reaction kinetic will be investigated, but also the interaction with the combustion system and control strategies.
The investigations base on experimental work mainly. An already existing H2-IC experimental setup guarantees a fast project start. Steady-state and transient load cases will be investigated. During the project also combinations of catalysts will be considered. Simulation will be engaged to support the experiments and enhance the understanding of the results.
Effective start/end date1/03/2131/05/22