Accession Number : AD0486824

Title :   EFFECT OF TWO FLUOROCARBON LUBRICITY ADDITIVES UPON THE THERMAL STABILITY OF AN ADVANCED HYDROCARBON JET FUEL.

Descriptive Note : Report for Feb-Jul 65,

Corporate Author : AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Zengel, Alan E.

Report Date : MAY 1966

Pagination or Media Count : 28

Abstract : Two fluorocarbon lubricity additives were tested in the Minex heat exchanger to determine their effect upon the thermal stability of a highly refined jet fuel. The jet fuel without additives and the fuel with a standard metal deactivator additive were tested first to provide a base line for testing with the lubricity additives. The results show that the additive-free jet fuel would not degrade the heat transfer efficiency in a Minex heat exchanger at 680 F. The addition of the metal deactivator N, N' - disalicylidene - 1, 2 - propane diamine, had no effect upon the thermal stability of the fuel but the fluorocarbon lubricity additives would degrade thermal stability. Additive A changed thermal stability from greater than 680 F to 600 F, and Additive B decreased the break point to 650 F. Although there was an adverse effect upon thermal stability, the jet fuel with the fluorocarbon additive is still usable for modern high speed aircraft.

Descriptors :   *FUEL ADDITIVES), (*JET ENGINE FUELS, (*HALOGENATED HYDROCARBONS, FUEL ADDITIVES), HYDROCARBONS, THERMAL STABILITY, HEAT TRANSFER.

Subject Categories : Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE