Examination of smoke and carbon from turbojet-engine combustors /
by Thomas P. Clark.

Description

Main Author

Clark, Thomas P.

Related Names

United States. National Advisory Committee for Aeronautics.
Lewis Flight Propulsion Laboratory.

Language(s)

English

Published

Washington, D.C. : National Advisory Committee for Aeronautics, [1952]

Subjects

Charts, diagrams, etc.
Airplanes > Airplanes / Turbojet engines.
Combustion chambers.
Combustion gases.
Combustion > Combustion / Research.
Combustion deposits in engines.
Smoke > Smoke / Analysis.
Carbon.
Aeronautics > Aeronautics / Research.

Summary

Smoke and carbon from turbojet-engine combustors were studied by the methods of electron microscopy, chemical analysis, and x-ray diffraction. The smoke exhausting from a combustor was found to consist of carbon black, agglomerated into soot. The carbon black had been partially burned in its passage through the flame zone. The smoke resulted from the incomplete combustion of the vaporized fuel; it was not the result of the pyrolysis of fuel droplets. The soft carbon in the dome of the combustor liner was found to consist of carbon black and soot intermixed with indeterminate complexes such as high-boiling fuel ends and partly polymerized and pyrolyzed heavy hydrocarbons. The hard carbon on the walls of the combustor liner was found to be largely petroleum coke. The coke was apparently formed by the liquid phase cracking, pyrolysis, and subsequent coking on the liner wall of fuel from the spray nozzle.

Note

NACA Research Memorandum E52I26.
On front cover: "November 10, 1952."
Title from cover.

Physical Description

12 p. : ill. ; 27 cm.

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