publication . Article . 2008

An experimental and numerical analysis of the influence of the inlet temperature, equivalence ratio and compression ratio on the HCCI auto-ignition process of Primary Reference Fuels in an engine

Hatim Machrafi; Simeon Cavadiasa;
Open Access English
  • Published: 01 Jan 2008
  • Country: Belgium
Abstract
In order to understand better the auto-ignition process in an HCCI engine, the influence of some important parameters on the auto-ignition is investigated. The inlet temperature, the equivalence ratio and the compression ratio were varied and their influence on the pressure, the heat release and the ignition delays were measured, The inlet temperature was changed from 25 to 70 degrees C and the equivalence ratio from 0.18 to 0.41, while the compression ratio varied from 6 to 13.5. The fuels that were investigated were PRF40 and n-heptane. These three parameters appeared to decrease the ignition delays, with the inlet temperature having the least influence and th...
Subjects
free text keywords: Auto-ignition, HCCI engine, Inlet temperature, Equivalence ratio, Compression ratio, Kinetic mechanism, : Chemical engineering [Engineering, computing & technology], : Ingénierie chimique [Ingénierie, informatique & technologie], : Energy [Engineering, computing & technology], : Energie [Ingénierie, informatique & technologie], Fuel Technology, Energy Engineering and Power Technology, General Chemical Engineering
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