March 2009
EPRI Sixth
International Conference on Advances in Materials Technology for Fossil Power
Plants
Material
Processing Technology, LLC
La Fonda on the Plaza;
August 31st-September
3rd, 2010
Abstract
Several factors
have renewed worldwide interest in advanced, high-efficiency coal power plants
during the last decade. These include the abundance of coal and the need to
maintain available coal option, to reduce fuel costs, and to reduce emissions
and waste from power plants. The net thermal efficiency of fossil plants has
improved from 33% high-heating value (HHV) in the case of the aging fleet of
“subcritical plants” to nearly 42% HHV for supercritical plants operating under
steam conditions of 1100°F/3600 psi (593°C/25 MPa).
To boost efficiencies above 45% HHV, research and development projects are
being carried out in Europe, the United States, and Japan on ultrasupercritical (USC) power plants (now emerging around
the globe with operation above 1100°F/3600 psi) and advanced ultrasupercritical (A-USC) power plants that can operate at
steam conditions of 1300°F/4000 psi (700°C/28 MPa)
and above.
In
The key enabling
technology that drives high-efficiency power plants is the development of
advanced materials and coatings with a considerable increase over traditional
alloys in creep strength and corrosion resistance. Major strides have been made
in 9% to 12% chromium (Cr) ferritic steels containing
boron (B), cobalt (Co), tungsten (W), and other elements for both boilers and
steam turbines that are capable of operating at temperatures of up to ~1150°F
(625°C). To operate beyond this limit, vastly improved austenitic steels and
alloys such as HR3C, NF 709, Super 304 H, 347 HFG, and HR6W are being
evaluated. For operation above 1300°F (700°C), nickel-based alloys such as Inconel 740, alloy 230, 617, 263, and Haynes 282 are
needed. Optimization of component fabrication processes including forming,
welding, casting, and forging is a critical factor in the serviceability of
these alloys.
2010 Conference
The three-and one-half-day conference is the sixth in a
series of conferences on the subject of materials for advanced plants held
every three years by EPRI. Previous conferences were held in
Participants are
likely to include domestic and international utilities, equipment
manufacturers, alloy vendors, forge shops, casting
houses, universities, national laboratories, and consulting/research
organizations. Papers are sought on boiler, turbine, and balance-of-plant
materials issues including:
• Plant economics, advanced
designs, and field experience
• New materials development concepts
• Materials processing of advanced alloys
• High-temperature materials used in boilers and turbines in steam power plants
(ferritic steels, austenitic steels and alloys, and
nickel-based superalloys)
• Boiler tubes, headers, steam pipes, waterwalls,
turbine rotors, blades, bolts, casings, valves, and
high-temperature components
• Microstructural evolution and creep
• Corrosion, coatings, and claddings
• Welding and fabrication
• Creep, fatigue, creep-fatigue, toughness, and high-temperature design rules
• Oxyfuel combustion and carbon sequestration
• Syngas and hydrogen turbines including IGCC plants
The official
language for this conference will be English. All papers will be written and
presented in English. All measurements should be in
Material Processing Technology, LLC
Phone
231-780-1265; e-mail JeffSmith@mpt-llc.com
Copyright 2010