Development of a Mathematical Code to Predict Thermal Degradation of Fuel and Deposit Formation in a Fuel System
Abstract
It has been observed in both small-scale experiments and full-scale system simulators that jet fuels, when heated, undergo chemical reactions that eventually result in sediment/deposit formation. Thus, the thermal instability of jet fuels has the deleterious effect of causing fuel system malfunctions. This situation is also possible in supersonic aircraft, where an increase in the metal skin temperature due to aerodynamic heating can, in turn, increase the temperature of uninsulated fuel tanks, leading to deposit formation. Although a great deal of experimental data has been obtained, the exact mechanisms of the degradation reaction and the consequent deposit formation process are still largely unknown. This is primarily due to the fact that the degradation process is influenced by many factors, some of which cannot be determined, varied, or controlled in an experiment. Thus, there is a need for a mathematical model that, once validated, can be used to predict the fuel deposition process by combining the effects of the fluid flow and heat transfer processes and the fuel degradation reactions. Keywords: Thermal instability, Jet engine fuels, Thermal degradation, Chemical kinetics, Surface catalysis, Fuel deposits, Mathematical models, Numerical analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1990
- Accession Number
- ADA225415
Entities
People
- Suresh Menon