Gas turbine combustor and engine augmentor tube sooting characteristics
By: J.S. Bennett, C.H. Jway, D.J. Urich, and D.W. Netzer
Contributors: Jway, Ching Hua; Urich, Dave J.; Netzer, David W.; Naval Postgraduate School (U.S.). Dept. of Aeronautics
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1986
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 75
Subjects: EXHAUST GASES; JET ENGINE FUELS; COMBUSTORS; FUEL  ADDITIVES; SOOT
Other titles: NPS-67-86-004.
Description: An experimental investigation was conducted to investigate the effects of smoke-suppressant      fuel additives, fuel composition and combustor operating environment on the soot      characteristics within the combustor and across an engine exhaust augmentor tube. A T63      combustor was used with fuel additive pumps and an exhaust augmentor tube. Soot mean      diameters and concentrations were measured at two locations within the combustor and at the      exhaust of the augmentor tube using three-wavelength light transmission and multiple-angle      forward scattering measurements and collection probes. Fuel and air flow rates were varied      and combustor inlet air temperature was varied using a hydrogen-fueled vitiated air heater.      Combustor flow conditions were found to significantly change soot characteristics as well as      the effects of smoke- suppressant fuel additives. D32(volume-to-surface mean diameter)      varied between 0.10 and 0.30 microns within the combustor. D32 increased significantly      across the engine augmentor tube, to sizes as large as 0.43 microns.
Notes: Title from cover.

"NPS-67-86-004."

"December 1986."

AD179 423.

Includes bibliographical references (p. 72).

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