Long-term materials test program. Quarterly report, July-September 1982

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5542970

Two nominally 200-hour tests were conducted in the Pressurized Fluidized Bed (PFB) Coal Combustion Facility. These tests were designed to provide additional information on gas-turbine materials performance in a PFBC environment. The tests were performed as part of the corrosion validation tests conducted under the Long-Term Materials Test Program to establish test conditions for the long term materials test. A nominal 1750/sup 0/C bed temperature and low alkali (0.1 wt % sodium plus potassium) Pfizer dolomite used in conjunction with high sulfur (4.5 wt %), high chlorine (0.17 wt %) Brookville seam coal caused significant corrosion of gas turbine materials exposed at the gas temperature, 1500/sup 0/ to 1600/sup 0/F. Cooling the materials 200/sup 0/ to 500/sup 0/F below the gas temperature resulted in greater corrosion attack on many of the materials. A lower bed temperature of 1650/sup 0/F with a higher alkali (0.9 wt %) Tymochtee dolomite and the same coal caused significantly less corrosion of both the uncooled and cooled materials.

• Research Organization: General Electric Co., Schenectady, NY (USA). Advanced Energy Programs Dept.
• DOE Contract Number: AC21-79ET15457
• OSTI ID: 5542970
• Report Number(s): DOE/ET/15457-1428; ON: DE84000040
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
GAS TURBINES
MACHINERY
MATERIALS
MATERIALS TESTING
OXIDATION
RESEARCH PROGRAMS
TESTING
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY