Role of the JFTOT in aviation fuel stability research
- Esso Research Centre, Abingdon (GB)
The Jet Fuel Thermal Oxidation Tester (JFTOT), normally operated under standard conditions required by fuel specifications for qualification purposes, can also be used under a wide range of operating conditions to provide research data on thermal stability of aviation fuels. Examples of some typical research investigations are given in the paper, covering the effects of olefins, nitrogen, sulphur, cracked stocks and metallic copper on high temperature stability properties of various fuels. The work described was carried out in the UK research laboratories of BP, Esso and Shell oil companies, under partial funding of the Ministry of Defence. When used in the research mode, several shortcomings of the JFTOT become evident, particularly in the areas of tube deposit assessment, tube surface metallurgy, and effectiveness in simulating aircraft fuel system operating conditions. Improvements are proposed to overcome these shortcomings - namely measuring tube deposit weight quantitatively by carbon burnoff; utilizing stainless steel instead of aluminum tubes at high test temperatures; and developing a capillary tube heater section to generate turbulent fuel flow conditions.
- OSTI ID:
- 6466889
- Journal Information:
- Fuel Sci. Technol. Int.; (United States), Journal Name: Fuel Sci. Technol. Int.; (United States) Vol. 6:6; ISSN FSCTE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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33 ADVANCED PROPULSION SYSTEMS
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ALLOYS
AVIATION FUELS
CHEMICAL REACTIONS
DATA ANALYSIS
DEPOSITS
ELEMENTS
EUROPE
FLUID FLOW
FUEL SYSTEMS
FUELS
HIGH ALLOY STEELS
HIGH TEMPERATURE
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
NITROGEN
NONDESTRUCTIVE TESTING
NONMETALS
OXIDATION
RESEARCH PROGRAMS
SPECIFICATIONS
STABILITY
STAINLESS STEELS
STEELS
SULFUR
TESTING
THERMAL TESTING
THERMODYNAMICS
TUBES
TURBULENT FLOW
UNITED KINGDOM
WESTERN EUROPE