Fuel Deposit Characteristics at Low Velocity PUBLIC ACCESS

[+] Author Affiliations
E. J. Szetela, A. J. Giovanetti

United Technologies Research Center, East Hartford, CT

S. Cohen

NASA Lewis Research Center, Cleveland, OH

Paper No. 85-IGT-130, pp. V002T04A025; 7 pages
  • ASME 1985 Beijing International Gas Turbine Symposium and Exposition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels
  • Beijing, People’s Republic of China, September 1–7, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7943-6
  • Copyright © 1985 by ASME


An experimental program has been carried out to characterize the relationship between deposit mass, operating time and temperature in studies of the thermal stability of aviation gas turbine fuel. This information is required by fuel system designers to prevent deposit build-up in fuel system components, thus allowing for more efficient designs. The program has included the design, fabrication, and operation of a novel thermal stability test apparatus for the determination of deposition rates over a range of temperatures and test durations up to several hundred hours.

Experiments were run to determine the rate of deposit formation as a function of temperature in heated stainless steel tubes at low velocity using Jet A fuel. The test tube had an inside diameter of 0.22 cm, a length of 0.91 m, and a flow rate of 0.73 kg/hr. Deposits obtained were often characterized as thick, porous, and non-uniform in nature. Deposit density, based on carbon content was 0.08 g/cm3. Deposit rates of 0.1 to 100 μgC/hr-cm2 were observed at surface temperatures between 400 and 600 K.

Copyright © 1985 by ASME
Topics: Fuels
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