MeSKAT - Methodology for increasing the cold start capability by increasing the turbulence in the load change
Table of contents
Project name
MeSKAT- Methodology for increasing the cold start capability by increasing the turbulence in the load change
Project duration
01.12.2025- 31.05.2027
Brief description
The physical background of the process is the conversion of turbulent kinetic energy (TKE) into heat. TKE is the energy contained in the swirling, disordered movements of a flowing medium (e.g. air, water, exhaust gas). The TKE is a measure of the intensity of the turbulence. This energy is converted by internal friction in the flow, resulting in an increase in temperature (viscous dissipation).
The TKE that occurs during the charge change is to be maximized by modifying the charge change control in a targeted manner on a 4-stroke gasoline engine with direct injection. This increases the temperature in the combustion chamber and thus enables/improves the cold start and minimizes the resulting emissions.
The following parameter space is to be investigated as part of the proposed project:
-temperature variation down to -20°C
-Fuel: methanol, ethanol, gasoline, (diesel simulative)
-Charge change control, how much turbulence is required?
-Variation of injection and ignition parameters (software application)
-Potential in warm engine operation to increase filling/torque and efficiency
-Application in the transition area between cold and warm engine operation
Contact us
Mr Dipl.-Ing. Maximilian Dobberkau
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