Fuel Microemulsions for Jet Engine Smoke Reduction

[+] Author and Article Information
D. W. Naegeli

Southwest Research Institute, San Antonio, Texas 78284

C. A. Moses

Combustion Technology, Southwest Research Institute, San Antonio, Texas 78284

J. Eng. Power 105(1), 18-23 (Jan 01, 1983) (6 pages) doi:10.1115/1.3227386 History: Received November 25, 1981; Online September 28, 2009


The concept of water and alcohol/fuel microemulsions for the purpose of reducing smoke emissions from jet engine test cells was studied in a T-63 gas turbine combustor. Several ethanol/fuel, methanol/fuel, and water/fuel microemulsions were prepared with JP-4 and JP-8 base fuels and the appropriate surfactants; anhydrous ethanol was miscible in both base fuels. These blends reduced radiation and exhaust smoke, increased CO and total hydrocarbon emissions, and decreased combustion efficiency. NOx was reduced when the surfactant did not contain nitrogen. The reductions in smoke and radiation correlated with changes in the H/C ratio of the fuel blends. Anhydrous ethanol/fuel solutions were most effective in reducing smoke from the standpoint of cost, operational, and systems effects.

Copyright © 1983 by ASME
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