“Combined Turbine Equipment Performance” represents the combined performance of the Gas Turbine-Generator(s) and the Steam Turbine-Generator(s), while disregarding or holding the performance of the remaining equipment in the Power Plant at its design levels. The lack of established industry standards and methods addressing the manner in which combined turbine equipment performance should be determined has invited confusion and has created opportunities for technical errors to go undetected. This paper presents a method and the supporting theory by which the corrected performance of the turbine-generators within a combined cycle plant can be combined to gauge their combined performance levels for either contractual compliance or for diagnostic purposes. The Combined Turbine Equipment Performance methodology provided in this paper, allows the performance engineer to easily separate the performance contribution of each turbine generator from the overall plant performance. As such, this information becomes a powerful diagnostic tool in circumstances where a reconciliation of overall plant performance is desired. Individual (gas or steam) turbine performance can be determined by conducting a test in accordance with the respective test code (ASME PTC 22 or PTC 6.2). However, each of these test codes corrects the measured equipment performance to fundamentally different reference conditions. Where the gas turbine-generator measured performance is corrected primarily to ambient reference conditions, the steam turbine-generator measured performance is corrected to steam flows and other steam reference conditions. The simple mathematical addition of the corrected performance of each turbine ignores the well-known fact that the steam turbine-generator output in a combined cycle plant is impacted by the gas turbine exhaust conditions, in particular the gas turbine exhaust flow and temperature. The purpose of this paper is to provide a method for the determination of “Combined Turbine Equipment Performance”, review the supporting theory, highlight the assumptions, and develop useful transfer functions for some commonly used combined cycle plant configurations, and bound the uncertainty associated with the methodology.
Skip Nav Destination
Close
Sign In or Register for Account
ASME 2007 Power Conference
July 17–19, 2007
San Antonio, Texas, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-4273-8
PROCEEDINGS PAPER
Combined Turbine Equipment Performance
Anthony E. Butler
,
Anthony E. Butler
GE Energy, Schenectady, NY
Search for other works by this author on:
Jagadish Nanjappa
Jagadish Nanjappa
GE Energy, Schenectady, NY
Search for other works by this author on:
Anthony E. Butler
GE Energy, Schenectady, NY
Jagadish Nanjappa
GE Energy, Schenectady, NY
Paper No:
POWER2007-22152, pp. 775-784; 10 pages
Published Online:
April 21, 2009
Citation
Butler, AE, & Nanjappa, J. "Combined Turbine Equipment Performance." Proceedings of the ASME 2007 Power Conference. ASME 2007 Power Conference. San Antonio, Texas, USA. July 17–19, 2007. pp. 775-784. ASME. https://doi.org/10.1115/POWER2007-22152
Download citation file:
- Ris (Zotero)
- Reference Manager
- EasyBib
- Bookends
- Mendeley
- Papers
- EndNote
- RefWorks
- BibTex
- ProCite
- Medlars
Close
Sign In
7
Views
0
Citations
Related Proceedings Papers
Related Articles
Proportional Integral Derivative Based Fault Tolerant Control for a Gas Turbine
J. Eng. Gas Turbines Power (November,2010)
Importance of Auxiliary Power Consumption for Combined Cycle Performance
J. Eng. Gas Turbines Power (April,2011)
Second Law Efficiency of the Rankine Bottoming Cycle of a Combined Cycle Power Plant
J. Eng. Gas Turbines Power (January,2010)
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
Lay-Up and Start-Up Practices
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration