The Preignition and Autoignition Oxidation of Alternatives to Petroleum Derived JP-8 and their Surrogate Components in a Pressurized Flow Reactor and Single Cylinder Research Engine
Abstract
Samples of jet fuel derived from coal, natural gas, and petroleum were oxidized in two complementary experimental facilities to explore their preignition and autoignition behavior. In both facilities, the order of reactivity, based on carbon monoxide production. in descending order was Fischer-Tropsch, petroleum, and coal. The reactivity differences are attributed to composition differences. Results showed that all the fuels exhibit negative temperature coefficient behavior as expected, but Fischer-Tropsch jet fuel produces significantly more carbon monoxide than petroleum and coal derived jet fuel before entering the negative temperature coefficient region. Possible surrogates and their components were also tested in the facilities to elucidate how compositional differences affect preignition and autoignition chemistry. A mixture of n-decane I iso-octane was studied as a surrogate fuel for Fischer-Tropsch jet fuel. The mixture was then tuned to approximate the low and intermediate temperature reactivity of Fischer-Tropsch jet fuel. Fischer-Tropsch jet fuel and the mixture showed similar reactivity based on measurements of carbon monoxide. PFR experiments for n-decane and decalin were also conducted to identify intermediate species profiles using gas chromatography with flame ionization detection and gas chromatography coupled to a mass spectrometer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2009
- Accession Number
- ADA519528
Entities
People
- Matthew S. Kurman
Organizations
- Drexel University