An investigation of the effects of smoke suppressant fuel additives on engine and test cell exhaust gas opacities
By: Donald W. Thornburg, Thomas R. Darnell, David W. Netzer
Contributors: Naval Postgraduate School (U.S.); Darnell, Thomas R.; Netzer, David Willis, 1939-
Publisher: Naval Postgraduate School
Published: 1982
Place of publication: Monterey, California
Language: eng
Number of pages: 104
Subjects: Fuel systems; Testing; Aircraft gas-turbines; Research; Aircraft exhaust emissions; Fuel; Air; Pollution
Description: Tests were conducted in a one-eighth scale turbojet test cell with a ramjet type combustor to investigate the effects of fuel additives on smoke reduction. Particle size and mass concentrations were determined at the engine and stack exhausts using three wavelength optical detector systems. Particulate samples were also collected at the engine exhaust and analyzed with a scanning electron microscope. Combustor temperature and fuel additives were found to significantly affect particulate mass concentrations emitted from the engine while particle size appeared to be unaffected. No significant changes in the particulate size or mass occurred from the engine exhaust to the stack exhaust. The optical determination of exhaust mean particulate size/mass concentration with three wavelength optical detector systems appears to be reasonably accurate technique for evaluating the effects of engine and test cell operating conditions and fuel composition changes on the emitted particulates. (Author)
Notes: "NPS-67-82-004"--Cover.

Cover title.

"May 1982"--Cover.

Prepared for: Naval Air Propulsion Center, Trenton, NJ 08600."

Includes bibliographical references (p. 101-102).

"Approved for public release; distribution is unlimited"--Cover.

Technical report; 1982.

ck/ 4/15/09.