EMISSIONS AND PERFORMANCE OF CATALYSTS FOR GAS TURBINE CATALYTIC COMBUSTORS
Three noble-metal monolithic catalysts were tested in a 12-centimeter diameter combustion test rig to obtain emissions and performance data at conditions simulating the operation of a catalytic combustor for an automotive gas turbine engine. Tests with one of the catalysts at 800 K inlet mixture temperature 300,000 pa (3 atm) pressure, and a reference velocity (catalyst bed inlet velocity) of 10 m/sec demonstrated greater than 99 percent combustion efficiency for reaction temperatures higher than 1300 K. With a reference velocity of 25 m/sec the reaction temperature required to achieve the same combustion efficiency increased to 1380 K. The exit temperature pattern factors for all three catalysts were below 0.1 when adiabatic reaction temperatures were higher than 1400 K. The highest pressure drop was 4.5 percent at 25 m/sec reference velocity. Nitrogen oxides emissions were less than 0.1 g NO2/kg fuel for all test conditions. (Author)
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Supplemental Notes:
- Conf-Proposed for Presentation at 22D Ann. Intern. Gas Turbine Conf., Philadelphia, 27-31 Mar. 1977; Sponsored by ASME.
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Corporate Authors:
Department of the Navy
The Pentagon
Washington, DC United States 20350 -
Authors:
- Anderson, D N
- Publication Date: 1977
Media Info
- Pagination: 42 p.
Subject/Index Terms
- TRT Terms: Adiabatic conditions; Catalysts; Combustion; Combustion efficiency; Economic efficiency; Exhaust gases; Flow; Gas turbines; Nitric oxide; Nitrogen oxides; Performance tests; Temperature; Turbine engines; Vehicle power plants; Velocity
- Uncontrolled Terms: Efficiency; Flow velocity
- Old TRIS Terms: Automobile engines; Combustion temperature
- Subject Areas: Economics; Geotechnology; Highways; Materials; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 00154563
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-TM-X-73543
- Files: TRIS
- Created Date: May 31 1977 12:00AM