EGRreact
EGRreact
In the EGRreact research project, it is planned to convert a series CHP natural gas engine from lean operation to stoichiometric operation. Here, one of the four cylinders is to act as a donor cylinder. (corresponding to variants 1 and 2 in the figure).
The donor cylinder is operated in rich mode. The background is that during rich combustion, thermal partial oxidation of natural gas occurs, producing highly reactive species such as hydrogen and carbon monoxide in the exhaust gas. Therefore, the rich-fuel cylinder acts as both an energy generator and a reactor. Recirculation of the cooled exhaust gas from the rich-fueled cylinder has two advantages:
- Cooled EGR → cold combustion → low wall heat loss and minimization of engine thermal load
- Reactive species in EGR→ Acceleration of ignition process ⇒ Together: Increase of thermal efficiency and lifetime of the CHP plant layer
Current information about the project
The project is currently in the initial phase. In parallel with the expansion of the engine test bench (H2 feed, D-EGR concept, additional measurement technology), open scientific questions on partial natural gas oxidation in the donor cylinder and on the influence of reactive species (H2, CO) on stoichiometric natural gas combustion in the EGR-relevant cylinders need to be answered.
Students
For students there is permanent the possibility to deal with research questions (reaction kinetics, combustion properties, artificial intelligence) and/or technical challenges (design, measurement technology, test rig setup) within the project EGRreact as a research assistant (Hiwi) or in the context of project (PA, R&E) and final theses (Bachelor, Master). Open topics can be found at student research or by direct contact with the responsible staff member.
Project partner
WJ POWER
HUEGLI TECH
ZIM-Förderung des Bundesministeriums für Wirtschaft und Energie (BMWi)
Last updated
26.03.2021