Fuel composition influence on deposition in endothermic fuels

Tim Edwards, Matthew J. DeWitt, Linda Shafer, David Brooks, He Huang, Sean P. Bagley, Jörge O. Oña, Mary J. Wornat

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

16 Citations (Scopus)

Abstract

The reactivity and deposition characteristics of a specification jet fuel (Jet A-1) and synthetic jet fuel produced via the Fischer-Tropsch (F-T) process were investigated under supercritical pyrolytic conditions. The latter fuel was comprised solely of straight-chain and branched paraffins. It was found that the F-T fuel was significantly more reactive and more prone to deposit formation than the Jet A-1. These results for the F-T fuel were attributed to the lack of hydrogen-donor capacity and high kinetic chain length. Overall, the decomposition pathways were consistent with free radical pyrolysis at elevated pressures and moderate temperatures. Analytical measurements support the hypothesis that cyclic unsaturates and polycyclic aromatic hydrocarbons (PAH) are formed as intermediates of the deposition process under these reaction conditions. Following initial thermal cracking, the formation of larger PAHs and deposits occur via addition of low molecular weight hydrocarbons and PAH-PAH reactions.

Original languageEnglish
Title of host publicationA Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
Pages645-657
Number of pages13
Volume1
Publication statusPublished - 2006
Externally publishedYes
Event14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference - Canberra, Australia
Duration: Nov 6 2006Nov 9 2006

Other

Other14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
CountryAustralia
CityCanberra
Period11/6/0611/9/06

Fingerprint

Polycyclic aromatic hydrocarbons
Jet fuel
Chemical analysis
Deposits
Synthetic fuels
Free radicals
Chain length
Paraffins
Pyrolysis
Molecular weight
Hydrocarbons
Decomposition
Specifications
Hydrogen
Kinetics
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Edwards, T., DeWitt, M. J., Shafer, L., Brooks, D., Huang, H., Bagley, S. P., ... Wornat, M. J. (2006). Fuel composition influence on deposition in endothermic fuels. In A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference (Vol. 1, pp. 645-657)

Fuel composition influence on deposition in endothermic fuels. / Edwards, Tim; DeWitt, Matthew J.; Shafer, Linda; Brooks, David; Huang, He; Bagley, Sean P.; Oña, Jörge O.; Wornat, Mary J.

A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference. Vol. 1 2006. p. 645-657.

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

Edwards, T, DeWitt, MJ, Shafer, L, Brooks, D, Huang, H, Bagley, SP, Oña, JO & Wornat, MJ 2006, Fuel composition influence on deposition in endothermic fuels. in A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference. vol. 1, pp. 645-657, 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference, Canberra, Australia, 11/6/06.
Edwards T, DeWitt MJ, Shafer L, Brooks D, Huang H, Bagley SP et al. Fuel composition influence on deposition in endothermic fuels. In A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference. Vol. 1. 2006. p. 645-657
Edwards, Tim ; DeWitt, Matthew J. ; Shafer, Linda ; Brooks, David ; Huang, He ; Bagley, Sean P. ; Oña, Jörge O. ; Wornat, Mary J. / Fuel composition influence on deposition in endothermic fuels. A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference. Vol. 1 2006. pp. 645-657
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