Masters Theses


"The pollutants emitted from jet engine test stands are carbon particles, unburned hydrocarbons, carbon monoxide, and the oxides of nitrogen. This work is a study of various ways of removing these pollutants from the test stand exhaust. The methods investigated include absorption, adsorption, electrostatic precipitation, filtration, catalytic reduction and oxidation, and thermal oxidation.

For abatement of nitrogen oxides, none of the present methods is considered to provide adequate technical reliability to proceed with an installation at this time. Each of the methods for removal of nitrogen oxides has high capital and operating cost; and, in many cases, secondary pollution problems are created. It is recommended that action on NOx emissions be deferred until the technology is further advanced.

Of the methods, or combinations of methods, available for removal of particulates, hydrocarbons, and carbon monoxide, only the thermal reactor will remove all three pollutants. The thermal reactor also has the lowest capital cost of all the other alternatives and has a comparable operating cost. Furthermore, the thermal reactor does not create secondary pollution problems and could be readily integrated with the noise suppressor design.

The primary disadvantage with the thermal reactor is the high fuel requirement to heat the exhaust gases to temperatures where thermal oxidation can occur. An additional 3 to 7 million gallons of fuel per year would be required for this purpose. The expenditure of this amount of energy in solving a minor pollution problem is deemed unjustifiable. Since the other methods of control has excessive capital costs and the same or higher operating costs, no action is recommended at this time on reducing emissions from the jet engine test stands"--Abstract, pages ii- iii.


Gaddy, J. L.

Committee Member(s)

Park, Efton
TerKonda, Purush


Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering


McDonnell-Douglas Aircraft Company
University of Missouri--Rolla. Department of Chemical Engineering


University of Missouri--Rolla

Publication Date



ix, 79 pages

Note about bibliography

Includes bibliographical references (pages 74-78).


© 1974 Gary Joseph Fennewald, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Jet engines -- Testing
Eagle (Jet fighter plane)
Air -- Pollution
Air -- Purification
Exhaust systems -- Environmental aspects

Thesis Number

T 2955

Print OCLC #


Electronic OCLC #