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Combined Cycle Gas and Steam Turbine Power Plants Third Edtion by Rolf Keh and Frank Hannemann
Usually the ”topping” and ”bottoming” cycles are coupled in a warmth exchanger. As much as the current time, just one mixed cycle has discovered huge acceptance: the mixture fuel turbine/steam turbine energy plant. To this point, crops of this kind have burned typically fossil fuels (principally-liquid fuels or gases.) Fig. 1 is a simplified stream diagram for an set up of this kind, during which an open-cycle fuel turbine is adopted by a steam course of. The warmth given off by the fuel turbine is used to generate steam. Different combos are additionally doable, e.g., a mercury vapor course of or changing the water with natural fluids or ammonia.
The mercury vapor course of is not of curiosity at this time since even standard steam energy crops obtain larger efficiencies. Natural fluids or ammonia have sure benefits over water within the low temperature vary, akin to decreased quantity flows, no wetness. Nonetheless, the disadvantages, i.e., growth prices, environmental influence, and many others., seem nice sufficient to stop their ever changing the steam course of in a combined-cycle energy plant. The dialogue that follows offers primarily with the mixture of an open-cycle fuel turbine with a water/steam cycle.
Sure particular functions utilizing closed-cycle fuel generators may also be handled briefly. It due to this fact is kind of affordable to make use of the steam course of for the “bottoming cycle.” That such mixture fuel turbine/steam turbine energy crops weren’t extra broadly used even earlier has clearly been because of the historic growth of the fuel turbine. Solely lately have fuel generators attained inlet temperatures that make it doable to design a really highefficiency cycle. Immediately, nonetheless, the put in energy capability of combined-cycle fuel turbine/steam turbine energy crops worldwide world totals greater than 30,000 MW.
810Okay (980°F), whereas the combustion temperature within the boiler is approx. 2000 Okay. Then, too, the temperature of the waste warmth from the method is larger than the ambient temperature. Each warmth trade processes trigger losses. One of the simplest ways to enhance the method effectivity is to scale back these losses, which could be achieved by elevating the utmost temperature within the cycle, or by releasing the waste warmth at as low a temperature as doable. The curiosity in combined-cycles arises notably from these two issues. By its nature, no single cycle could make each enhancements to an equal extent.
Combined-Cycle Gas and Steam Turbine Power Plants PDF
Author(s): Kehlhofer, Rolf; Rukes, Bert; Hannemann, Frank; Stirnimann, Franz
Publisher: PennWell, Year: 2009
This book is a comprehensive overview of the combined-cycle power plant from a thermodynamic, technical, and economic viewpoint. This Third Edition gives readers the latest technological developments and practical examples from existing, state-of-the-art combined-cycle plants. Both practicing engineers and engineering students will find this book the definitive work on combined-cycle power plants. Long considered an indispensable guide for combined-cycle technology, this book continues to deliver unparalleled technical information, plus new chapters on important advancements. Among the updates, this edition provides an accurate, international picture of combined-cycle power generation. The book also discusses topics related to global warming with new chapters on CO2 capture and storage, and integrated gasification combined-cycle plants (IGCC). Included is an insightful economics chapter focusing on return-on-investment for combined-cycle.
• Front Matter
• List of Figures
• List of Tables
• Table of Contents
• 1. Introduction
2. The Electricity Market
4. Thermodynamic Principles of the Combined-Cycle Plant
5. Combined-Cycle Concepts
6. Applications of Combined Cycles
8. Control and Automation
9. Operating and Part-Load Behavior
10. Environmental Considerations
• 11. Developmental Trends
12. Integrated Gasification Combined Cycle
13. Carbon Dioxide Capture and Storage
14. Typical Combined-Cycle Plants
• 15. Conclusion
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