Project Number: 066
Category: Aircraft Technology Innovation, Alternative Fuels
Preliminary theoretical investigations show significant reductions in fuel burn when high thermal stability fuels are used. This study will investigate if fuels with high thermal stability, when used as coolants or subjected to engine temperatures higher than currently realizable with typical conventional fuel thermal stability, result in fuel burn improvements in jet engines. Alternative jet fuels have shown improved thermal stability and are good candidates for this type of investigation. The research team will conduct a systematic and comprehensive study of the potential benefits of high thermal stability fuels in an aircraft engine and the impact of fuel composition on the thermal stability of alternative fuels. Work under this project will document bottlenecks for performance gains and quantify each potential gain and which hydrocarbon compositions that lead to the greatest benefit. From these identified bottlenecks, experimental campaigns will focus on testing of the theoretical work. The research team will also examine the benefits of utilizing alternative jet fuels as well as conventional fuels with changes in terms of their composition.
Annual Reports
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Publications
- Dielectric Constant Predictions for Jet-Range Hydrocarbons: Evaluating the Clausius–Mossotti Relation and Correcting for Molecular Dipole Moments
- The Effect of Theoretical SAF Composition on Calculated Engine and Aircraft Efficiency
- Threshold Sooting Index of Sustainable Aviation Fuel Candidates from Composition Input Alone: Progress Toward Uncertainty Quantification
- Optimization of Sustainable Alternative Fuel Composition for Improved Energy Consumption of Jet Engines
- Sustainable Alternative Fuel Effects on Energy Consumption of Jet Engines