2012•Advanced materials researchOpen access

Effects of Fuel Octane Number on Homogeneous Charge Compression Ignition (HCCI) Combustion with Rapid Compression Machine

You Kun Wang, Cheng Peng, Yun Kai Wang, Hua Li, Ying Guo

Abstract

The effects of fuel octane number (RON) on homogeneous charge compression ignition (HCCI) combustion were studied under different combustion boundary conditions on a rapid compression machine. The results show that the maximum pressure raise rate and maximum combustion temperature decreased as the RON increased while the start of combustion is delayed and the combustion duration is shortened at the same time.

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Key concepts: Homogeneous charge compression ignition, Combustion, Octane rating, Compression (physics), Materials science, Ignition system, Compression ratio, Ignition timing