The definition of open cycle rational efficiency is unequivocally based on the ratio of the actual shaft work output from a power plant to the maximum work that could be obtained in a reversible process between prescribed inlet and outlet states. However, different constraints may be applied to such an ideal reversible process, and the maximum work obtainable will then vary, as will the value of the rational efficiency. Attention has been drawn to this issue before in the literature and it is discussed further here. In particular, the consequences of defining the outlet state for the ideal process are critical. A further complication occurs when water or steam is injected into a gas turbine plant. Three definitions of rational efficiency are discussed here and some illustrative calculations presented. There are small but significant differences between the values of the three derived efficiencies. [S0742-4795(00)00101-0]
Skip Nav Destination
Article navigation
January 2000
Technical Papers
Exergy Analysis of Modern Fossil-Fuel Power Plants
J. H. Horlock,
J. H. Horlock
Whittle Laboratory, Cambridge University, Madingley Road, Cambridge, CB3 0DY, United Kingdom
Search for other works by this author on:
J. B. Young,
J. B. Young
Whittle Laboratory, Cambridge University, Madingley Road, Cambridge, CB3 0DY, United Kingdom
Search for other works by this author on:
G. Manfrida
G. Manfrida
Dipartimento di Energetica “Sergio Stecco,” Universita` di Firenze, Via S. Marta 3, 50139 Firenza, Italy
Search for other works by this author on:
J. H. Horlock
Whittle Laboratory, Cambridge University, Madingley Road, Cambridge, CB3 0DY, United Kingdom
J. B. Young
Whittle Laboratory, Cambridge University, Madingley Road, Cambridge, CB3 0DY, United Kingdom
G. Manfrida
Dipartimento di Energetica “Sergio Stecco,” Universita` di Firenze, Via S. Marta 3, 50139 Firenza, Italy
Contributed by the Advanced Energy Systems Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the Advanced Energy Systems Division August 28, 1998; final revision received by the ASME Headquarters July 5, 1999. Technical Editor: M. J. Moran.
J. Eng. Gas Turbines Power. Jan 2000, 122(1): 1-7 (7 pages)
Published Online: July 5, 1999
Article history
Received:
August 28, 1998
Revised:
July 5, 1999
Citation
Horlock , J. H., Young, J. B., and Manfrida, G. (July 5, 1999). "Exergy Analysis of Modern Fossil-Fuel Power Plants ." ASME. J. Eng. Gas Turbines Power. January 2000; 122(1): 1–7. https://doi.org/10.1115/1.483170
Download citation file:
Get Email Alerts
Shape Optimization of an Industrial Aeroengine Combustor to reduce Thermoacoustic Instability
J. Eng. Gas Turbines Power
Dynamic Response of A Pivot-Mounted Squeeze Film Damper: Measurements and Predictions
J. Eng. Gas Turbines Power
Review of The Impact Of Hydrogen-Containing Fuels On Gas Turbine Hot-Section Materials
J. Eng. Gas Turbines Power
Effects of Lattice Orientation Angle On Tpms-Based Transpiration Cooling
J. Eng. Gas Turbines Power
Related Articles
Comparative Study of Two Low C O 2 Emission Power Generation System Options With Natural Gas Reforming
J. Eng. Gas Turbines Power (September,2008)
Use of Low/Mid-Temperature Solar Heat for Thermochemical Upgrading of Energy, Part II: A Novel Zero-Emissions Design (ZE-SOLRGT) of the Solar Chemically-Recuperated Gas-Turbine Power Generation System (SOLRGT) guided by its Exergy Analysis
J. Eng. Gas Turbines Power (July,2012)
Ultralow-Emission Combustion and Control System Installation Into Mature Power Plant Gas Turbines
J. Eng. Gas Turbines Power (February,2011)
The Employment of Hydrogenerated Fuels From Natural Gas Reforming: Gas Turbine and Combustion Analysis
J. Eng. Gas Turbines Power (July,2004)
Related Chapters
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Combined Cycle Power Plant
Energy and Power Generation Handbook: Established and Emerging Technologies
Physiology of Human Power Generation
Design of Human Powered Vehicles