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Combustor Dynamics Monitoring for Improved GasTurbine Reliability
Reduce combustor damage risks
Be proactive in preventing excess instabilitiesand combustion induced vibrations
Background, Objectives, and New Learnings
This project is a continuation of EPRI R&D that developed a
basis for detecting combustion system failures in dry, low-
NOx (DLN) gas turbines, based on analysis of dynamic
pressure data. This detection analysis approach is a
significant advancement over the threshold detection
methodologies currently available with existing combustion
dynamics monitoring systems (CDMS). This field test effort
project continues this work by applying these methods to
additional host site gas turbines. It will focus on the
refinement of these methods of failure detection for DLN
combustion systems while minimizing false alarms alerts due
to sensor failures, ambient condition changes, and control
system variations.
The objectives of this project are to provide host sites with an
on-line tool to improve operational flexibility and avoid DLN
combustion system failures; to investigate any data
anomalies and identify potential or emerging problems over a
24-month period; and to generate guidelines to avoid DLN
combustion system failures.
The knowledge developed by this project can provide gas
turbine operators with information to improve operational
flexibility and avoid further in-service failures. This
knowledge will assist in avoiding DLN combustion system
failures and reduce operational risks. The results will be
incorporated in a series of EPRI design and O&M guidelines
that address increased combined-cycle operational flexibility.
Benefits
Combustor dynamics monitoring provides improved
diagnostic capability and risk avoidance. The EPRI
diagnostic tool provides advanced warning beyond the
conventionally supplied combustor monitoring system.
Project Approach and Summary
The EPRI diagnostic tool will be installed in the host site's
existing combustor monitoring system. The diagnostic data
will be monitored over a 24-month period. The plant receives
regular status reports and alerts of impending combustor
system malfunctions.
Deliverables
Combustor Diagnostic Monitoring: Installation of
diagnostic software and routine review of data are covered.
Plant is provided timely alerts of developing faults.
Product ID: 1023354 Project ID: 072056 June 2011
Electric Power Research Institute3420 Hillview Avenue, Palo Alto, California 94304-1338 • PO Box 10412, Palo Alto, California 94303-0813 USA800.313.3774 • 650.855.2121 • [email protected] • www.epri.com
© 2011 Electric Power Research Institute (EPRI), Inc. All rights reserved. Electric Power Research Institute, EPRI, andTOGETHERSHAPING THE FUTURE OF ELECTRICITY are registered service marks of the Electric Power Research Institute, Inc.
Price of Project
Companies that fund any Generation program can use
tailored collaboration (TC) funds for up to half of their
contribution. The cost to join this EPRI project is $50,000
USD per year for two years.
Project Status and Schedule
The project currently is ongoing with installations at two F-
class combined-cycle sites.
Who Should Join
Owner/operators of natural gas-fired combustion turbines,
operating in combined cycle or simple cycle configuration
equipped with a combustion dynamics monitoring system,
could benefit from participation in this project.
Contact Information
For more information, contact the EPRI Customer
Assistance Center at 800.313.3774 ([email protected]).
Technical Contact
Leonard Angello, 650.855.7939 ([email protected])
