A Pressure-Oscillation-Based RON Estimation Method for Spark Ignition Fuels beyond RON 100
Tom Robeyn,
Victor Sileghem,
Tara Larsson
et al.
Abstract:Knock in spark ignition (SI) engines occurs when the air–fuel mixture in the combustion chamber ignites spontaneously ahead of the flame front, reducing combustion efficiency and possibly leading to engine damage if left unattended. The use of knock sensors to prevent it is common practice in modern engines. Another measure to mitigate knock is the use of higher-octane fuels. The American Society for Testing and Materials’ (ASTM) determination of the Research Octane Number (RON) and Motor Octane Number (MON) o… Show more
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