Advertisement

MTZ worldwide

, Volume 79, Issue 2, pp 60–65 | Cite as

Knock with Exhaust Gas at Full Load

  • Max MallyEmail author
  • Alexander Fandakov
  • Liming Cai
  • Heiko Minwegen
Research
  • 178 Downloads

Knocking combustion limits the efficiency of turbocharged SI engines at high loads.

This phenomenon can be inhibited by deploying recirculation of cooled exhaust gas. However, the development support for full load exhaust gas combustion systems with 0-D/1-D simulations is not yet expedient, as no reliable knock model exists which accounts for exhaust gas. In order to develop such a model, a new kinetic mechanism for gasoline surrogate fuels was developed and in parallel the effects of exhaust gas have been investigated experimentally with a single-cylinder research engine. Based on the measurement database and the new kinetic mechanisms, at the RWTH Aachen University and the University of Stuttgart a predictive knock model for 0-D simulation applications was developed and validated jointly as part of an FVV research project.

1 Motivation

In order to optimize the efficiency of internal combustion engines, today many variations such as the compression ratio are used. In the gasoline...

Notes

Thanks

This report is the scientific result of a completed research task undertaken by the Forschungsvereinigung Verbrennungskraftmaschinen e. V. (FVV, Frankfurt) under the number 6301 and processed by the RWTH Aachen University and the University of Stuttgart. We would like to thank the FVV Working Group chaired by Dr.-Ing. André Kulzer (Dr. Ing. h.c. F. Porsche AG) for their guidance.

Copyright information

© Springer Fachmedien Wiesbaden GmbH 2018

Authors and Affiliations

  • Max Mally
    • 1
    Email author
  • Alexander Fandakov
    • 2
  • Liming Cai
    • 3
  • Heiko Minwegen
    • 4
  1. 1.WiesbadenGermany
  2. 2.WiesbadenGermany
  3. 3.WiesbadenGermany
  4. 4.WiesbadenGermany

Personalised recommendations