Low temperature autoignition behavior of surrogate jet fuels with targeted properties in a rapid compression machine

Daniel Valco, Kyungwook Min, Anna Oldani, Tim Edwards, Tonghun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A rapid compression machine is used to study the autoignition characteristics of surrogate jet fuels with unique physical and/or chemical characteristics that may have an impact on the combustion properties. These surrogate fuels were specifically designed to study of the influence of chemical composition on autoignition, including the influence of branching in isoparaffins and effects of aromatic structures. The tests were conducted via a rapid compression machine that employed the direct test chamber charge preparation method which allows for high reproducibility of measurements. Ignition delay measurements are compared between the conventional military jet fuel and neat surrogate jet fuels. Measurements were made at a compressed pressure of 20 bar at equivalence ratios of 1.0, 0.5, and 0.25 in the low temperature region (625 K and 735 K). The results show significant variability in the ignition properties at these low temperature conditions based on the chemical structure. This variability may require attention when the engine is running outside the normal operational map or for new engine architectures in the future.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
StatePublished - 2016
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting


Other54th AIAA Aerospace Sciences Meeting, 2016
Country/TerritoryUnited States
CitySan Diego

ASJC Scopus subject areas

  • Aerospace Engineering


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