Description:

The introduction of electronic injection systems, such as the common rail system, has opened up possibilities for adapting injection and combustion to different fuels. This in turn opens up new possibilities for burning low-quality fuels with the lowest possible emissions.
Knowledge of injection behaviour, mixture formation, combustion and pollutant formation is required in order to select the appropriate adjustable injection parameters. This knowledge is only available in isolated cases and is therefore limited for fuels used in the maritime environment. Complex theoretical knowledge is necessary to create suitable simulation tools.
Optical and laser-optical investigations of the processes in the combustion chamber are required to validate the models. This is possible thanks to the optically accessible combustion chamber of a heavy fuel oil-compatible large single-cylinder diesel engine at the University of Rostock, including the measurement technology available there. The validation of pollutant formation is carried out with the help of the exhaust gas measurement technology and chemical exhaust gas analysis also available.
The aim is to expand the knowledge base on the combustion processes and pollutant formation of fuels that have been little investigated and to derive suitable injection strategies for their low-emission combustion.

Funding organisation: DFG

Project team

• Ibrahim Najar
• Benjamin Stengel