Instrumentation, Controls & Electrical
Reduce costs by optimizing combustion
in gas turbines
SPPA-D3000 Combustion Dynamics Monitoring
Monitors and diagnoses the combustion behavior
in gas turbines with a view to avoiding damage
to the combustion chamber and optimizing
combustion processes. Combustion Dynamics
Monitoring can be used for all turbine types from
GE, MHI, Alstom, Westinghouse and Siemens.
The Task
Pressure fluctuations can result in considerable
damage to combustion chambers, can increase
fuel consumption and have adverse effects on
emissions. The aim is to monitor combustion
behavior at a reasonable cost with such a degree
of accuracy that pressure fluctuations can be
avoided and turbines can be operated at their
economic optimum.
Diagnostic display of combustion chamber:
An important element in comprehensive diagnostics designed
to avoid damage
Our Solution
Your Benefit
Combustion chambers produce an individual
"acoustic fingerprint". A change in this fingerprint
points to incipient damage. The system stores the
fingerprint and monitors and analyzes the process
continually by means of noise monitoring.
Consequently, this contributes to avoiding
mechanical wear and to maintaining combustion
at an optimum at all times, both in terms of
economy and emissions. Combustion Dynamics
Monitoring is robust and is comparatively simple
to install and integrate into the I&C.
The ability to operate at an economic
optimum means that a return on investment
can be realistically expected within one to two
years depending on operating mode.
Signal amplifier
Diagnostic Suite
Answers for energy.
„
Reduced maintenance and repair costs
„
Safety thanks to comprehensive diagnostics
„
Higher overall turbine availability
„
Lower emissions
Acoustic sensor
Darling tubes
Technical variants
1. Stand-alone unit for monitoring
combustion dynamics
The system can be operated as a standalone unit. It comprises one probe per
combustion chamber. These probes are
connected to the computer in the control
room via an amplifier unit. The measured
signal for each combustion chamber is
continuously monitored in four significant
frequency ranges. The limit values for
alarms and warnings can be individually
configured. An alarm is generated if a
defined limit value is exceeded allowing
correction measures to be initiated
promptly.
2. Combustion Dynamics Protection
The "acoustic fingerprint" of the combustion chamber provides important information about combustion and
emissions behavior.
The system can also be integrated into the
I&C in such a way that a load reduction is
automatically triggered when a critical
situation is identified. This means that
turbine protection is independent of the
reactions of operating personnel.
Main technical components
„ Acoustic
„ Sensor
„ Signal
sensors
housings
amplifier
„ Damping
„ Darling
3. Combustion Dynamics Protection
with integrated Emissions Optimizer
„ Cables
tubes
tubes (infinite acoustics)
and cable ducts
„ Data
acquisition and evaluation
computers
In the event of unstable combustion
(humming), the fuel-to-air mixture can be
automatically enriched such that the
turbine can always be operated at an
optimal operating point with respect to
NOx emissions.
„ Workstation
(for the control room)
„ Software
General features
„ Local
and centralized operation and
monitoring
„ Configurable
limit values for alarms
and warnings
„ Data
archiving and trend display
„ Boolean
Data acquisition and evaluation computers: The heart
of Combustion Dynamics Monitoring
Published by and copyright © 2009:
Siemens AG, Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Fossil Power Generation
Instrumentation, Controls & Electrical
Siemensallee 84
76187 Karlsruhe, Germany
sppa-d3000.pg@siemens.com
For more information, contact our
Customer Support Center.
Phone: +49 180 524 70 00
Fax:
+49 180 524 24 71
(Charges depending on provider)
E-mail: support.energy@siemens.com
www.siemens.com/sppa-d3000
„ Open
Fossil Power Generation Division
Instrumentation, Controls & Electrical
D3CD_FS_CDMS_e_V1-6
Order No. E50001-G230-A171-X-4A00
Printed in Germany
Dispo 05401, c4b: 7465
Printed on elementary chlorine-free
bleached paper.
gating of alarms
interfaces, e.g. for OSI PI
All rights reserved.
Trademarks mentioned in this document are
the property of Siemens AG, its affiliates, or
their respective owners.
Subject to change without prior notice.
The information in this document contains general
descriptions of the technical options available,
which may not apply in all cases.
The required technical options should therefore be
specified in the contract.