Economics/reliability trade-offs in materials selection for electric power generation processes
A better understanding of the chemistry of corrosion, and selection of materials, will help energy conversion systems save energy. High strength steel in steam turbines, and titanium blades in the (L-1) can cut down on SCC (stress corrosion cracking). The MONEL alloy is suggested for high pressure feedwater heaters. Type 317L steel with molybdenum resists corrosion in the scrubbers. Only nickel base alloys with appreciable molybdenum can withstand the environment of SO2 scrubbers. Silicon nitride and silicon carbide are suggested for fluidized bed combustors. Such material choices are a tradeoff between metallurgical and economic considerations. The optimum choice for productibility may not be the optimum choice for material performance.
- Research Organization:
- American Electric Power Service Corp., New York, NY
- OSTI ID:
- 5362683
- Report Number(s):
- CONF-830213-
- Journal Information:
- Energy Technol. (Wash., D.C.); (United States), Vol. 10; Conference: 10. energy technology conference, Washington, DC, USA, 28 Feb 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
METALS
EVALUATION
POWER GENERATION
MATERIALS TESTING
CRACK PROPAGATION
ECONOMICS
ENERGY CONSERVATION
ENERGY CONVERSION
ENVIRONMENT
FEEDWATER HEATERS
FLUIDIZED-BED COMBUSTORS
HIGH PRESSURE
METALLURGY
MOLYBDENUM
MONEL
NICKEL BASE ALLOYS
RELIABILITY
SCRUBBERS
SILICON CARBIDES
SILICON NITRIDES
STEAM TURBINES
STEELS
STRESS CORROSION
SULFUR DIOXIDE
TITANIUM
TURBINE BLADES
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTORS
CONVERSION
COPPER ALLOYS
CORROSION
ELEMENTS
EQUIPMENT
HEATERS
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
NICKEL ALLOYS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
POLLUTION CONTROL EQUIPMENT
SILICON COMPOUNDS
SULFUR COMPOUNDS
SULFUR OXIDES
TESTING
TRANSITION ELEMENTS
TURBINES
TURBOMACHINERY
360100* - Metals & Alloys
200100 - Fossil-Fueled Power Plants- Power Plants & Power Generation