Characterization of an On-Spec, Commercial Grade, Jet A and A Near-Off-Spec Military F-24; Evaluation of +100 Thermal Stability Package
Technical Report,01 Apr 2016,01 Sep 2017
Fuels Branch, Turbine Engine Division, Air Force Research Laboratory Wright-Patterson Air Force Base United States
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This report presents the data and findings for the analysis of two aviation fuels using the fuel system simulator FSS.One is a commercially sourced Jet A, referred to as Gulf Coast, which meets all criteria in the Jet A specification. The other fuel is an F-24 obtained from Fort McCoy Garrison in Wisconsin. The F-24 fuel, referred to as McCoy, when initially received at Fort McCoy, failed the Jet Fuel Thermal Oxidative Test JFTOT breakpoint criteria. The analysis ofthe fuels using the FSS showed the Gulf Coast fuel to be representative of a quality aviation fuel. It exhibited low- to no thermal stability issues low- to no-coke deposition within the fuel lines of the FSS and low- to no-hysteresis on the critical valves within the fuel system. In stark contrast, the results obtained for the McCoy fuel showed extreme thermal stability problemshigh coke deposition within the fuel lines of the FSS and moderate to severe hysteresis on the critical valves within the fuel system.