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Exhaust Gas Temperature Monitoring
Gary
Hewitt of PowerGen's Power Technology Centre explains
how they have expanded
the capability of their on-line vibration monitoring system
to predict gas turbine burner
behaviour. Plant health is determined and advanced warning
alarms raised using an
algorithm calculated remotely via modern information technology
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Vibration as a Condition Monitor Parameter
Generating
more power from turbo-alternators is of increasing importance
in today's competitive generation market. Some of the
ways this can be achieved are by plant modifications such
as latest blading techniques, etc., and/or enabling each
unit to generate for longer periods between maintenance.
Plant maintenance based on need rather than preventative
maintenance can prove effective at keeping the plant operational
whilst saving significant sums of money. In order to adopt
this strategy, it is necessary to be able to determine
the condition of the plant in a cheap and non-invasive
manner. There are a number of ways of doing this, but
one of the most effective for rotating plant is vibration
analysis.
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Smart Condition Monitoring at Power Technology
Gary Hewitt of Powergen's Power Technology and Duncan
Affleck of Beran Instruments describe how Power Technology
are using today's measurement and communications technologies
to provide comprehensive condition monitoring expertise
to power plants across the world.
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Vibration Signal Processing Basics for Rotating
Plant
An overview of the issues regarding
taking vibration diagnostic measurements
on large rotating plant such as steam and gas turbines.
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On-line monitoring of combustion dynamics
in Combined Cycle Gas Turbines
Virtually all today's industrial turbines use lean
premix combustion technology to minimise N0x emissions,
but unless carefully controlled, this can lead to combustion
instabilities and untimately provoke early component
failure. In a joint development with Powergen UK plc's
Power Technology division and Connah's Quay Power Station,
Beran Instruments has developed a combustion monitoring
system, based on their proven 766 condition monitoring
series, which can provide a vital early warning of impeding
combustion problems.
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Tranportable systems for turbine condition
monitoring
This report, which is based on an article that
first appeared in Noise & Vibration Worldwide, outlines
an advanced system now in service with both Powergen
and Bristish Energy in the UK, and describes a real
incident that occured at the Fiddlers Ferry power station
in Cheshire, England.
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British Energy harness networking to
enhance condition monitoring capability
British Energy has made use of local area networks
to simplify installation and reduce costs of on-line
monitoring on many of it's key plant items. Wide area
networks are also utilised to distribute plant condition
information to specialised engineers. Tim Salter of
Beran Instruments and Dr John Hart of British Energy
explain how this has been achieved.
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Beran Condition Monitoring Systems Brochure
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