STAR* Fuel Systems
For Industrial Gas Turbines up to 15 MW
Answers for Energy
Gas Fuel Valve
Gas Fuel System Benefits
Replacement for hydro/pneumatic / mechanical
governor and in-house throttle valve
Improved reliability – by simplified robust ball valve
design with greater operational tolerance
Utilizes V-notch rotary ball valve with metal wiping
surfaces
Improved response and controllability – gas turbine
and fuel supply parameters constantly updated to
provide improved starting, load shedding, etc.
Optimizes gas turbine performance by continuously
monitoring pressure and temperature, adjusting fuel
delivery to meet demand
Electric actuator with position transmitter delivers
high operating torque and accuracy
The Fuel Valve and Actuator combination ensures
accurate and reliable operation even under the most
arduous conditions
Will tolerate poor quality gas fuel but the gas supply
must be within the parameters of Siemens Fluid
Specification Report 65/0027
*STAR is a Small Turbine Advanced Modernization and Upgrade.
Improved availability – maintenance downtime is
significantly reduced
Less susceptible to fuel borne contamination – the
new fuel control valve has a self-cleaning action
which incorporates a wiping surface arrangement and
a high torque actuator
Reduced gas fuel supply pressure – it may be possible
to run at reduced loads on lower gas fuel supply
pressures
Smoother gas turbine running characteristics –
accurate fuel control, reduced component stress and
wear throughout the operating range
For specific turbine models, please contact your Siemens Industrial Gas
Turbines Ltd representative.
Fig 1. Gas Fuel Valve installation and pipework
www.siemens.com/energy
Liquid Fuel System Benefits
Obsolescence
Cost
Reduction
Health &
Safety
Benefit by
Mods & Ups
Reliability
Performance
Environment
Liquid Fuel Valve
Replaces hydro / pneumatic /
mechanical governor and in-house
throttle
The modernization assembly is
typically made up of two individual
parts, a Fuel metering module and a
High Pressure Filter but in some
instances (on TA turbines) a relief
valve may also be included
Direct Mods & Ups
Liquid fuel feed protection – new
protective devices reduce the
possibility of damage to components
and fuel leakage into the surrounding
area
Better fuel changeover on dual fuel
engines – new gas fuel valve, in
conjunction with the new liquid fuel
valve, provides gradual ‘bump-less’
transfer
Smoother gas turbine running
characteristics – resulting from
accurate fuel control, reduce
component stress and wear
throughout the gas turbines’
operating range.
If not already fitted then, for safety,
it is strongly recommended that
these devices be installed:
Gas Block and Vent Valve (OffPackage)
Liquid Fuel Block & ThermalRelief Valve Assembly Upgrade
(Off-Package)
On-skid Gas Fuel fast acting
Block valve
Associated modernization and
upgrades:
TB S7-300TM Microcontroller
STA-RMS – Remote Monitoring
System
Improved Air Inlet Filtration –
HEPA Filtration
Core/Package uprates
Please contact your local Siemens
representative for further information.
ISCAP (In Service Capability)
Modifications
Halon replacement F&G system
The Fuel Metering Module comprises
of a Direct drive valve with electric
actuator and position transmitter
The direct drive valve acts as a
variable electronic orifice. The linear
relationship between signal and flow
is maintained by a regulating valve,
which senses outlet pressure and
maintains a set pressure drop across
the direct drive valve. Excess flow is
returned to pump suction
Fig 2: Liquid Fuel Valve installation
and pipework
Published by and copyright © 2013:
Siemens AG
Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens Energy, Inc.
4400 Alafaya Trail
Orlando, FL 32826-2399, USA
For more information, please 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/energy
Energy Service Division
LCN 2013 - F33.14 LN
Printed on elementary chlorine-free
bleached paper.
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.