Rapid-compression machine studies on two-stage ignition characteristics of hydrocarbon autoignition and an investigation of new gasoline surrogates

Jinhwa Chung, Seunghyeon Lee, Hyunsoo An, Soonho Song and Kwang Min Chun

Energy, 2015, vol. 93, issue P2, 1505-1514

Abstract: Iso-octane-based surrogates have been widely used to represent gasoline fuel combustion. The surrogate's autoignition characteristics have been of particular interest due to combustion issues associated with spark-ignition engine knocking or controlled autoignition. In this study, the autoignition of several hydrocarbons was measured and analyzed using a rapid compression machine. The two-stage ignition characteristics of gasoline and iso-octane were compared and the differences analyzed from the viewpoint of the effect of the fuels' chemical structure on low-temperature oxidation processes and internal isomerization. Finally, the reliability of iso-octane as a gasoline surrogate was examined, and other surrogates were suggested. Our results indicated that surrogates containing ∼20% cyclic alkenes were better able to simulate gasoline autoignition, including two-stage ignition characteristics.

Keywords: Gasoline surrogate; Autoignition; Two-stage ignition; Fuel structure; RCM (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:93:y:2015:i:p2:p:1505-1514

DOI: 10.1016/j.energy.2015.09.077

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