Study of the mineral matter distribution in pulverized fuel coals with respect to slag deposit formation in boiler furnaces : Phase I. Interim report, April--June 1977
- Author
- Austin, L. G.
- Published
- United States : [publisher not identified], 1977.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1977. - Physical Description
- microfiche : negative ; 11 x 15 cm
- Additional Creators
- Essenhigh, R. H., Gootzait, E., Morris, B., Moza, A. K., Ohmine, S., and Strickler, D.
- Summary
- Particles of several minerals were examined under the SEM in order to compare the results obtained from the analyses of dispersed and polished samples. Keeping the SEM operating conditions constant, 5 or 6 particles were examined for each dispersed and polished sample. The results of the SEM analysis have shown that there is a much wider distribution of x-ray counts for dispersed particles as compared to polished samples. Based on this work, it has been concluded that it will be very desirable to have some method of correcting for geometric effects, for measurements on dispersed samples. The reconstruction of the plug flow furnace has been completed and a series of furnace characterization tests has been started. The new furnace has double the wall thickness of the original furnace in order to decrease the wall heat loss and thus to help promote slagging. Initial tests indicate that the furnace wall temperatures show only a slight increase in the peak temperature, however the peak temperature and the flame front have shifted in an upstream direction, leading to a higher average wall temperature. Work on the development of the cooled deposit collection probes is continuing. The first phase of the work on Wetting and Contact Angle measurement has been completed. The Abstract and the Conclusions from the student's dissertation are reported.
- Report Numbers
- FE-2316-5
- Other Subject(s)
- 01 coal, lignite, and peat
- 010600 - coal, lignite, & peat- properties & composition
- 014000 - coal, lignite, & peat- combustion
- Ashes
- Boilers
- Carbonaceous materials
- Chemical analysis
- Chemical reactions
- Coal
- Combustion
- Electron microscopy
- Energy sources
- Fossil fuels
- Fouling
- Fuels
- Furnaces
- Geology
- Melting
- Microscopy
- Mineral wastes
- Minerals
- Oxidation
- Petrology
- Phase transformations
- Residues
- Sampling
- Slags
- Solid wastes
- Surface properties
- Surface tension
- Testing
- Viscosity
- Wastes
- Collection
- U.S. Atomic Energy Commission depository collection.
- Note
- DOE contract number: EX-76-S-01-2316
OSTI Identifier 5078619
Research organization: Pennsylvania State Univ., University Park, PA (United States).
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