Quantitative analysis of CT scans of ceramic candle filters

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:567523

Ferer, M V ^[1]; Smith, D H ^[2]

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1. West Virginia Univ., Morgantown, WV (United States)
2. Morgantown Energy Technology Center, WV (United States)

Candle filters are being developed to remove coal ash and other fine particles (<15{mu}m) from hot (ca. 1000 K) gas streams. In the present work, a color scanner was used to digitize hard-copy CT X-ray images of cylindrical SiC filters, and linear regressions converted the scanned (color) data to a filter density for each pixel. These data, with the aid of the density of SiC, gave a filter porosity for each pixel. Radial averages, density-density correlation functions, and other statistical analyses were performed on the density data. The CT images also detected the presence and depth of cracks that developed during usage of the filters. The quantitative data promise to be a very useful addition to the color images.

• OSTI ID: 567523
• Report Number(s): CONF-960106--
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
AIR FILTERS
CERAMICS
FLUIDIZED-BED COMBUSTORS
NONDESTRUCTIVE TESTING
SILICON CARBIDES
TEMPERATURE RANGE 0400-1000 K