Combined-cycle power plants have been built with the gas turbine, steam turbine, and generator connected end-to-end to form a machine having a single shaft. To date, these plants have utilized a nonreheat steam cycle and a single-casing steam turbine of conventional design, connected to the collector end of the generator through a flexible shaft coupling. A new design has been developed for application of an advanced gas turbine of higher rating and higher firing temperature and exhaust gas temperature with a reheat steam cycle. The gas turbine and steam turbine are fully integrated mechanically, with solid shaft couplings and a common thrust bearing. This paper describes the new machine, with emphasis on the steam turbine section where the elimination of the flexible coupling created a number of unusual design requirements. Significant benefits in reduced cost and reduced complexity of design, operation, and maintenance are achieved as a result of the integration of the machine and its control and auxiliary systems.
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1989 Joint Power Generation Conference: GT Papers
October 22–26, 1989
Dallas, Texas, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7910-8
PROCEEDINGS PAPER
An Integrated Steam/Gas Turbine-Generator for Combined-Cycle Applications
J. H. Moore
J. H. Moore
GE Company, Schenectady, NY
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J. H. Moore
GE Company, Schenectady, NY
Paper No:
89-JPGC/GT-3, V001T01A003; 7 pages
Published Online:
March 20, 2015
Citation
Moore, JH. "An Integrated Steam/Gas Turbine-Generator for Combined-Cycle Applications." Proceedings of the 1989 Joint Power Generation Conference: GT Papers. 1989 Joint Power Generation Conference: GT Papers. Dallas, Texas, USA. October 22–26, 1989. V001T01A003. ASME. https://doi.org/10.1115/89-JPGC/GT-3
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