RESEARCH PAPERS: Gas Turbines: Combustion and Fuels

The Effects of Dissolved Oxygen Concentration, Fractional Oxygen Consumption, and Additives on JP-8 Thermal Stability

[+] Author and Article Information
J. S. Ervin, T. F. Williams, S. P. Heneghan, S. Zabarnick

University of Dayton, Dayton, OH 45469-0210

J. Eng. Gas Turbines Power 119(4), 822-829 (Oct 01, 1997) (8 pages) doi:10.1115/1.2817060 History: Received February 01, 1996; Online November 19, 2007


Since dissolved oxygen participates in fuel deposit formation, knowledge of the effects of dissolved oxygen concentration on fuel thermal stability is critical for fuel system design. In this work, the combined effects of dissolved oxygen availability and additives on jet fuel thermal stability are studied. Experiments with JP-8 jet fuel were conducted in a three-part heat exchanger that simulated a complex thermal and flow environment. The dissolved oxygen content at the flow inlet was varied, and deposition was studied under conditions of either fractional or complete oxygen consumption. The effects of a thermal stability additive package were also studied. An intriguing result found with JP-8 fuels is an increase in deposits formed in heated regions for decreased oxygen consumption, but inverse behavior with the additive package.

Copyright © 1997 by The American Society of Mechanical Engineers
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