A new hot gas filter for removal of particulates upstream of gas turbines is described and compared with a device called a candle. Candle filters are made in the shape of a large test tube from ceramic materials bonded with a glassy phase. The filtering membrane is fairly thick making candles relatively heavy. A thinner filter would be easier to support, more tolerant of thermal shock, and would offer less resistance to flow. A filter of a ceramic/ceramic composite may achieve these goals and specimens are being fabricated by depositing a ceramic material on a ceramic fiber preform by chemical vapor infiltration. The ceramic matrix is silicon carbide and the ceramic fiber reinforcement is alumina-boria-silica. Progress toward filter development is described.
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ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
June 3–6, 1991
Orlando, Florida, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7900-9
PROCEEDINGS PAPER
Ceramic Filters for Use at High Temperature
Lloyd R. White
Lloyd R. White
3M Company, St. Paul, MN
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Lloyd R. White
3M Company, St. Paul, MN
Paper No:
91-GT-188, V003T05A004; 4 pages
Published Online:
March 10, 2015
Citation
White, LR. "Ceramic Filters for Use at High Temperature." Proceedings of the ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations. Orlando, Florida, USA. June 3–6, 1991. V003T05A004. ASME. https://doi.org/10.1115/91-GT-188
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