Steam Turbine Materials for Advanced Ultra Supercritical (AUSC) Coal Power Plants Email Page
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Performer: Energy Industries of Ohio Inc.
<strong>Top:</strong> Cast HR 282 ingots welded together using<br/>hot-wire TIG process, and supplied to ORNL for<br/> testing of mechanical properties. <strong>Bottom:</strong> Histograph<br/>of creep-rupture life of cast HR 282 alloy joined<br/>together by hot TIG welding, and then tested in various<br/>heat-treatment conditions at 800 °C and 200 MPa. The<br/>unwelded base metal is for cast material in the fully heat-treated condition.
Top: Cast HR 282 ingots welded together using
hot-wire TIG process, and supplied to ORNL for
testing of mechanical properties. Bottom: Histograph
of creep-rupture life of cast HR 282 alloy joined
together by hot TIG welding, and then tested in various
heat-treatment conditions at 800 °C and 200 MPa. The
unwelded base metal is for cast material in the fully heat-treated condition.
Website: Energy Industries of Ohio Inc.
Award Number: FE0000234
Project Duration: 10/01/2009 – 09/30/2015
Total Award Value: $11,024,691
DOE Share: $6,949,158
Performer Share: $4,075,533
Technology Area: Plant Optimization Technologies
Key Technology: High Performance Materials
Location: Independence, Ohio

Project Description

The objective of this project is to contribute to the development of materials technology for use in advanced ultra supercritical (AUSC) steam turbines. AUSC power plants will operate with steam temperatures up to 1,400°F and pressures of 5,000 psi resulting in a highly efficient power generation process. Estimated plant efficiency increases are as much as 30% compared to sub critical power plants. Research and development on advanced materials is needed to lead to full-scale demonstration and eventual commercialization for AUSC power plants. A three-year preliminary evaluation under Phase 1 identified a wide spectrum of potential alloys and coatings. Preliminary evaluations of a subset of these promising materials included research on mechanical properties, oxidation resistance, weldability, and suitability of alloys and coatings. This follow-on effort will support in-depth, longer term testing that provides material characterization data that is necessary for the design of a steam turbine that is operable in AUSC conditions.

Project Benefits

This project will examine steam turbine materials for AUSC coal power plants capable of operating at high temperature and pressure, ultra-supercritical and advanced-ultra-supercritical operating conditions. Findings under this project will provide a foundation for future development and deployment of AUSC steam turbines. Overall, this will lead to improvements in efficiency, operational flexibility, and lower operating costs.

Contact Information

Federal Project Manager Vito Cedro: vito.cedro@netl.doe.gov
Technology Manager Robert Romanosky: robert.romanosky@netl.doe.gov
Principal Investigator Robert Purgert: purgert@msn.com

 

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