Third Party Funds Group - Sub project
Acronym: H2-OHA
Start date : 01.01.2023
End date : 31.12.2025
In the area of off-highway applications (e.g. construction machinery, opencast mining), there is also a need for defossil drives to achieve climate targets. With special requirements of the sector in terms of energy density, robustness and running time, hydrogen engines are a solution that can be implemented in the short term. The suitability of different injection and ignition concepts for such engines is an open question, which the project addresses. Using optical measurement techniques, concepts for intake manifold and low-pressure direct injection are compared quantitatively in terms of mixture formation and the influence of the injection system (focus: injector) is evaluated. In addition, with the aim of achieving virtually emission-free combustion, an investigation of ignition with an actively scavenged hydrogen pre-chamber will be carried out to enable lean-burn operation and thus the avoidance of nitrogen oxide emissions. Components of the injection and ignition systems as well as investigation methodologies are being specifically developed in the project.
In the area of off-highway applications (e.g. construction machinery, opencast mining), there is also a need for defossil drives to achieve climate targets. With special requirements of the sector in terms of energy density, robustness and running time, hydrogen engines are a solution that can be implemented in the short term. The suitability of different injection and ignition concepts for such engines is an open question, which the project addresses. Using optical measurement techniques, concepts for intake manifold and low-pressure direct injection are compared quantitatively in terms of mixture formation and the influence of the injection system (focus: injector) is evaluated. In addition, with the aim of achieving virtually emission-free combustion, an investigation of ignition with an actively scavenged hydrogen pre-chamber will be carried out to enable lean-burn operation and thus the avoidance of nitrogen oxide emissions. Components of the injection and ignition systems as well as investigation methodologies are being specifically developed in the project.