| A New Superalloy Enabling Heavy Duty Gas Turbine Wheels for Improved Combined Cycle Efficiency
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| Performer: |
General Electric (GE) Company |
Location: |
Niscayuna, NY |
| Project Duration: |
09/14/2015 – 10/25/2016 |
Award Number: |
FE0026299 |
| Technology Area: |
Plant Optimization Technologies |
Total Award Value: |
$937,498 |
| Key Technology: |
High Performance Materials |
DOE Share: |
$749,998 |
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Performer Share: |
$187,500 |
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A comparison of a heavy duty gas turbine
wheel and a jet engine disk. The large increase
in wheel size presents processing challenges
that must be addressed during alloy design. |
Project Description
NETL is partnering with General Electric Company to develop a high-performance, heavy-duty gas turbine wheel that could increase combined cycle turbine efficiency from approximately 62 to 65%. Specifically, the project will screen two different concepts to develop a thick section >1,200 °F-capable material for heavy-duty gas turbine wheels. The processing requirements for these large components, combined with the elevated temperature and stress property requirements, present a unique set of challenges requiring a new approach to alloy design that will be addressed in this project.
Project Benefits
This project, if successful, will increase gas turbine efficiency, which directly translates to a decrease in fuel consumption (4-7%) and reduced capital costs from higher output. A reduction of 3 to 6% in the CO2 produced per MW of power generated may also be realized.
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