Pre-chamber ignition and combustion characterization (PRECISION)
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DOI of the original publication
Related research data
Project type
angewandte Forschung
Project start
01.04.2026
Project end
30.06.2029
Project status
laufend
Project contact
Project manager
Description
Abstract
In spark ignition IC engines, the increase in compression ratio (CR), in the specific heat (sHR) ratio, and faster combustion usually results in higher brake thermal efficiency. Higher CR and sHR are achievable using lean-burn combustion concepts. Nevertheless, this results in high cyclic variability and potentially high unburned gas emissions. Furthermore, using a high CR often leads to knocking.
In this perspective turbulent jet ignition (TJI) is a promising technology that can mitigate these drawbacks.
The research project investigates pre-chamber internal ignition and combustion, hot reactive turbulent jet propagation, and main chamber inflammation using different optical test rigs.
Link
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Zero Emission
School
Hochschule für Technik und Umwelt FHNW
Institute
Institut für Thermo- und Fluid-Engineering
Financed by
Forschungsvereinigung Verbrennungskraftmaschinen e.V. (FVV)
Project partner
Porsche AG
Contracting authority
SAP reference
T326-0267-2
Keywords
Combustion processes
Pre-chamber turbulent jet
Heat release
Flame propagation
Pre-chamber turbulent jet
Heat release
Flame propagation