Accepted manuscript
Low temperature autoignition of conventional jet fuels and surrogate jet fuels with targeted properties in a rapid compression machine
Proceedings of the Combustion Institute, Vol.36(3), pp.3687-3694
2017
Handle:
https://hdl.handle.net/2376/120205
Appears in Aviation Sustainability Center (ASCENT)
Abstract
The autoignition characteristics of conventional jet fuels (category A) and alternative fuels with targeted properties (category C) are investigated using a rapid compression machine and the direct test chamber charge preparation approach. The category C fuels were purposefully built to anticipate special property variations that generally occur in alternative fuels. Ignition delay measurements were made to examine the effects of these unique fuels at low compressed temperatures (625K≤Tc≤735K), a compressed pressure of Pc=20bar and equivalence ratios of ϕ=0.25, 0.5 and 1.0 in synthetic dry air. Chemical makeup of the fuel shows insight into the effect of the amount of branching in isoalkanes and aromatic influences on autoignition. The results show noteworthy variability in the ignition properties at these low temperature and lean conditions. This variability may impact combustion performance when the engine is running outside the normal operational map or for new engine architectures in the future.
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Details
- Title
- Low temperature autoignition of conventional jet fuels and surrogate jet fuels with targeted properties in a rapid compression machine
- Creators
- Daniel J Valco - Department of Chemical Engineering, University of Illinois, Urbana-Champaign, IL 61801, USAKyungwook Min - Department of Mechanical Science and Engineering, University of Illinois, Urbana-Champaign, IL 61801, USAAnna Oldani - Department of Mechanical Science and Engineering, University of Illinois, Urbana-Champaign, IL 61801, USATim Edwards - Air Force Research LaboratoryTonghun Lee - Department of Mechanical Science and Engineering, University of Illinois, Urbana-Champaign, IL 61801, USA
- Publication Details
- Proceedings of the Combustion Institute, Vol.36(3), pp.3687-3694
- Academic Unit
- Aviation Sustainability Center (ASCENT); Alternative Jet Fuel
- Publisher
- Elsevier Inc
- Grants
- 13-C-AJFE-UI-007, Federal Aviation Administration (United States, Washington) - FAA
- Identifiers
- 99900620470701842
- Language
- English
- Resource Type
- Accepted manuscript