An investigation into the effects of vermiculite on NOx reduction and additives on sooting and exhaust infrared signature from a gas turbine combustor
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Authors
Engel, Kurt R.
Subjects
NOx control
gas turbine combustors
gas turbine fuel additives
soot control
pollution control
Nitrous oxide
Gas-turbines, Combustion
Gas-turbines, Fuel
gas turbine combustors
gas turbine fuel additives
soot control
pollution control
Nitrous oxide
Gas-turbines, Combustion
Gas-turbines, Fuel
Advisors
Netzer, D.W.
Date of Issue
Date
1990-09
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
An experimental investigation was conducted to determine the feasibility of using catalytic reduction of NOx emissions from a typical jet engine combustor in the test cell environment. A modified T-63 combustor in combination with an instrumented 21 foot augmentation tube containing a vermiculite catalyst was used. Several methods for containing the vermiculite were attempted. Both vermiculite and vermiculite which had been coated with thiourea were used. Up to 19% reduction in NOx concentrations was obtained using the vermiculite coated with thiourea, however the pressure loss across the catalyst bed was measured to be 36 in. H2O. The techniques used proved ineffective and unacceptable for gas turbine engine test cell applications. Tests were conducted using both Wynn's W-15\590 and Catane TM (ferrocene) fuel supplements in order to determine their effectiveness for soot reduction and whether or not the exhaust plume could be changed. For the test conditions utilized, the Wynn's additive was not effective in reducing the opacity of the exhaust plume, nor for reducing the exhaust plume temperature. The Catane TM reduced the opacity by 6.2%, but also had no significant effect on the plume IR signature.
Type
Thesis
Description
Series/Report No
Department
Aeronautics and Astronautics
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
xi, 66 p.: ill.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.