GE94-02: Repair Flow Testing and Calibration Procedures for ...

the control constants and methods for modulating split schedules, examples of emissions and
dynamics trends that can be expected, and a general method for establishing final split
schedules. For units that employ high temperature fuel heating, the impact of fuel heating on
dynamics and combustor tuning is discussed. Finally, additional means are presented for tuning
emissions at base load when split adjustment is not sufficient to bring NOx into compliance.
GEN24‐04: Assessment of Software Tools for Parts Tracking in Combustion
Turbine Based Power Plants. September 2004.
In the power generation industry today, there is a need to track the life expended,
repairs/repair ability and locations of capital parts. This is becoming more critical since several
original equipment manufacturers (OEM) of gas turbine equipment are beginning to indicate
that the operating profile of both their mature (E class) and advanced (F class) combustion
turbines can have a significant and negative impact on the lifetime characteristics of hot gas
path parts such as; stationary vanes/nozzles, rotating blades, combustor parts and turbine
rotors. The impact is reduced time to required maintenance, as well as reduced life of critical
high cost parts. The cost implications can be significant. Consequently, there is a greater need
and burden on owner operators and asset managers to track the condition of these high cost
capital parts, to determine scrap versus repair options, to develop realistic/empirical
expectations for life based on operating profiles, and to manage the cost implications and
impact.
This assessment was undertaken to developed evaluation criteria and provides an objective
review of several commercially available parts tracking tools in response to the requirements
for tracking gas turbine hot section parts. The assessment summarizes each tool evaluated
against a list of predetermined evaluation criteria that are intended to identify elements that
are deemed necessary to the ability to perform the parts tracking functions.
GEN24‐05: Selective Catalytic Reduction (SCR) Catalyst Life Expectancy Study for
Combined Cycle and Simple Cycle Gas Turbines. November 2005.
The SCR Catalyst Life Expectancy Study was conducted to develop a tool that could be used to
plan the replacement of SCR catalysts for combined cycle and simple cycle combustion turbines
that utilize SCR for control of nitrogen oxides. The study also evaluated mitigation measures
that may increase SCR catalyst life, examined the impact of catalyst design margins in an