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, Kwang Min Chun

Research output: Contribution to journalArticle

11 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1505-1514
Number of pages10
Publication statusPublished - 2015 Jan 1


All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this