Accession Number : ADA112800

Title :   An Investigation of Engine and Test Cell Operating Conditions on the Effectiveness of Smoke Suppressant Fuel Additives.

Descriptive Note : Master's thesis,


Personal Author(s) : Thornburg,Donald Wendell

PDF Url : ADA112800

Report Date : Dec 1981

Pagination or Media Count : 103

Abstract : 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 exhaust 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 a good and reasonably accurate technique for evaluating the effects of engine and test cell operating conditions and fuel composition changes on the emitted particulates. (Author)

Descriptors :   *Fuel additives, *Smoke abatement, *Turbojet engines, *Test equipment, Scale models, Air pollution, Jet engine fuels, Smoke, Pollution abatement, Combustion products, Suppressors, Particle size, Mass, Concentration(Composition), Electronic scanners, Electron microscopy, Combustors, Temperature, Optical detectors, Theses

Subject Categories : Test Facilities, Equipment and Methods
      Combustion and Ignition
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE