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Research on aviation fuel instabilityCurrent aircraft turbine fuels do not present a significant problem with fuel thermal stability. However, turbine fuels with broadened properties or nonpetroleum derived fuels may have reduced thermal stability because of their higher content of olefins, heteroatoms, and trace metals. Moreover, advanced turbine engines will increase the thermal stress on fuels because of their higher pressure ratios and combustion temperature. In recognition of the importance of this problem, NASA Lewis is currently engaged in a broadly based research effort to better understand the underlying causes of fuel thermal degradation. The progress and status of our various activities in this area are discussed. Topics covered include: nature of fuel instability and its temperature dependence, methods of measuring the instability, chemical mechanisms involved in deposit formation, and instrumental methods for characterizing fuel deposits. Finally, some preliminary thoughts on design approaches for minimizing the effects of lowered thermal stability are briefly discussed.
Document ID
19840016666
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Baker, C. E.
(NASA Lewis Research Center Cleveland, OH, United States)
Bittker, D. A.
(NASA Lewis Research Center Cleveland, OH, United States)
Cohen, S. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Seng, G. T.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: AGARD Combust. Probl. in Turbine Eng. 11p (SEE N84-24732 15-25)
Subject Category
Propellants And Fuels
Accession Number
84N24734
Distribution Limits
Public
Copyright
Other
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