Long-term materials-test program. Quarterly report, April-June 1982
A total of 611 specimen test hours have been completed under the corrosion-validation testing phase of the Long-Term Materials-Test Program. Operation of the PFB combustor at average bed temperatures of 1580/sup 0/ to 1630/sup 0/F resulted in significantly less corrosion and erosion/corrosion degradation of the gas turbine materials than previous testing at average bed temperatures of 1750/sup 0/ to 1800/sup 0/F. Plugging of the high-velocity test section due to the buildup of thick layers of dense, adherent deposits also was alleviated during operation at the lower combustor temperatures. The test facility has undergone a major overhaul with the lower combustor section, tee-section over the low-velocity test section and bypass leg reinsulated with new refractory to reduce heat losses throughout the system. Several other components experiencing varying degrees of corrosion and/or metallurgical degradation as a result of their exposure to the PFBC effluent were refurbished, repaired, or replaced as appropriate. The in-bed heat-exchanger coil continues to perform satisfactorily with over 500 hours service. 49 figures, 16 tables.
- Research Organization:
- General Electric Co., Schenectady, NY (USA). Advanced Energy Programs Dept.
- DOE Contract Number:
- AC21-79ET15457
- OSTI ID:
- 6561791
- Report Number(s):
- DOE/ET/15457-1248; ON: DE83005964
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE MINERALS
CARBONATES
CHEMICAL REACTIONS
COAL
COATINGS
COMBUSTION
COMBUSTORS
CORROSION
DOLOMITE
ENERGY SOURCES
EROSION
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUELS
GAS TURBINES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
MACHINERY
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATERIALS
MATERIALS TESTING
MINERALS
OXIDATION
OXYGEN COMPOUNDS
PROTECTIVE COATINGS
RESEARCH PROGRAMS
TEST FACILITIES
TESTING
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
VERY HIGH TEMPERATURE