1,050 MW Steam Turbine with World's Highest Efficiency in Tachibana-wan Fossil Fuel Power Station No.2 Unit |
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MHI has supplied a steam turbine with the world's highest efficiency to the No.2 unit of the Tachibana-wan Power Station. MHI has also ever manufactured and delivered two 600°C-class, 1,000 MW steam turbines, proving its leadership in the steam turbine industry for large-capacity and super-high-temperature design technology.
 MHI has supplied a steam turbine to the Tachibana-wan No.2 unit of Electric Power Development Co., Ltd. in Shikoku, Japan. This unit started commercial operation in December 2000, and has been operating very well.
The feature of this turbine is its adoption of high-strength steel with excellent heat resistance, which withstands such severe conditions as steam temperatures up to 600°C, reheated steam temperatures up to 610°C, and main steam pressure of to 25.1 MPa. In addition, the turbine was designed with a compact, optimized shape to match each structure.
As to its turbine efficiency, cycle efficiency was improved under super-high-temperature steam conditions. In addition, by applying high-efficiency blades designed through full 3-D dimensional flow analysis, this steam turbine achieves world-leading efficiency among the same capacity class steam turbines. (Its turbine heat rate as relative value was improved by approx. 4% compared to conventional 1,000 MW turbines with a steam temperature of 538°C, reheated steam temperature of 566°C, and main steam pressure of 24.2 MPa). By making full use of its excellent high-temperature and high-performance technologies, MHI will continue to manufacture and supply the state-of-the-art steam turbines to contribute to the global energy concerns. |
