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- W4286598843 abstract "This chapter addresses steam Rankine bottoming cycle design and optimization for gas turbine combined cycles (GTCC). State-of-the-art GTCC plants currently offer net power plant efficiencies above 64% with natural gas fuel. The natural gas-fueled GTCC often provides the most economical electricity generation solution due to its unsurpassed efficiency, modest capital cost, quick construction, high power density, low emissions, and excellent operability. As the world moves toward a carbon-free future, the GTCC is also well positioned. Hydrogen can be accommodated today as a fuel constituent up to as much as 60% depending on gas turbine model, with the industry committed to 100% capability across their product lines by 2030. Carbon capture can also be accomplished either before or after combustion by technologies available today. Technology improvements enabling net plant efficiencies up to the 65% range are foreseen by the major equipment manufacturers in the next few years. In relation to fossil or nuclear steam Rankine cycles the steam turbines for combined cycle application put a higher premium on low pressure (LP) section performance and annulus area since steam is generated and admitted at multiple pressure levels generally without steam extraction for feedwater heating. The LP section typically accounts for ~50% of the total steam turbine output. System design and thermodynamics of the unfired GTCC for power generation are discussed. Variations on this theme are briefly presented in terms of the impact on thermal cycle design and steam turbine equipment. These include combined heat and power cogeneration (supplementary fired and unfired), district heating, carbon capture and storage, solar thermal integration, and integrated gasification combined cycles. Design optimization usually starts by seeking the best balance of cost and performance but is also influenced by several other considerations." @default.
- W4286598843 created "2022-07-22" @default.
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- W4286598843 date "2022-01-01" @default.
- W4286598843 modified "2023-09-23" @default.
- W4286598843 title "Steam turbine cycles and cycle design optimization: combined cycle power plants" @default.
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- W4286598843 doi "https://doi.org/10.1016/b978-0-12-824359-6.00001-9" @default.
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