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CleanBlade GTC1000 Treatment Program* For Gas Turbine

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CleanBlade GTC1000 Treatment Program* For Gas Turbine Compressors *Patent Pending GE Gas Turbine Portfolio our start target market Aeroderivatives: 13 47 MW ... – PowerPoint PPT presentation

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Title: CleanBlade GTC1000 Treatment Program* For Gas Turbine


1
CleanBlade GTC1000 Treatment Program
  • For Gas Turbine Compressors

Patent Pending
2
GE Gas Turbine Portfolio our start target market
  • Aeroderivatives 13 47 MW
  • LM1600
  • LM2000
  • LM2500 / LM2500
  • LM6000

3
LM1600 Gas Turbine
4
LM2500 Gas Turbine
5
Aeroderivative Market
6
GE Gas Turbine Portfolio
  • Heavy Duty Gas Turbines
  • Frame 6 42 76 MW
  • 6B 1000 units globally
  • Frame 9 126 255 MW
  • Advancements as FA / FB / H series
  • F/FA 60 units for 50 Hz market (7FA 180 units
    for 60 Hz market)
  • 9H Baglan Bay, Wales 480 MW

7
Table of Contents
  • Gas Turbine Compressor Fouling - Problem
    Description
  • CleanBlade Product Description Lab Test Data
  • GT Compressor Cleaning Process
  • US Field Trial Experience
  • GT Compressor Performance Monitoring

8
Gas Turbine Compressor Fouling
  • Compressor sections of Power Plant gas turbines
    ingest large quantities of outside air for the
    combustion process, that can contain
  • Particulate matter
  • Aerosols of hydrocarbons
  • Other organic compounds
  • Industrial production gases (i.e. nitrogen,
    chlorine, sulfur)

9
Gas Turbine Compressor Fouling
  • Ingested compounds and fine particulate matter
    can deposit on compressor blades, altering the
    aerodynamics of the blades, decreasing the
    efficiency of the compressor and resulting in
  • Power losses
  • Higher operating temperatures
  • Increased fuel consumption
  • Shorter component life
  • Some turbines are more prone to fouling than
    others (i.e. those operating in contaminated air)
  • However all GT compressors foul to some extent.

10
Gas Turbine Compressor Fouling
  • Routine off-line washing of compressors with an
    approved cleaning solution will remove the
    deposited fouling, restoring the aerodynamics and
    compressor efficiency, helping to ensure
  • Maximum available power output
  • Improved fuel efficiency
  • Reduced wear and tear on machine components
    (bearings, blades )
  • On-line washing is not as efficient as off-line
    washing
  • The purpose of on-line washing is to extend the
    period between off-line washes by regaining some
    of the lost power.

11
Gas Turbine Compressor Fouling
  • Depending on the amount of deposits on the
    blades, off-line washing (using the correct
    cleaner) can result in efficiency gains of 2-3.
  • For a typical Power Plant gas turbine, this can
    translate into savings of hundreds of thousands
    of dollars a year.
  • The time between off-line washes will be dictated
    by
  • Site operations
  • Degree of air pollution
  • Amount of fine particulate matter in the air
  • Acceptable power loss by the operator
  • Use of on-line washes

12
Gas Turbine Compressor Fouling
  • To monitor the effectiveness of off-line
    cleanings, the following compressor parameters
    can be monitored
  • Compressor inlet and discharge pressures and
    temperatures
  • Exhaust gas temperature (EGT)
  • Measuring the EGT at a specific power setting
    before and after a wash will indicate the
    efficiency gained through the washing.
  • A more efficient (i.e. cleaner) compressor will
    show a decrease in the EGT.

13
CleanBlade GTC1000
  • CleanBlade GTC1000 isa concentrated high
    performance, non-flammable, biodegradable, low
    foaming aqueous-based cleaner for cleaning Gas
    Turbine compressors.
  • CleanBlade GTC1000s unique chemistry
    (surfactants, emulsifiers, ) is specifically
    designed to remove deposits found on gas turbine
    compressor blades.

14
CleanBlade GTC1000 Product Features
  • Water based clear solution with a mild pleasant
    odor
  • Excellent cleaning performance
  • Attains cleaning efficiencies similar to
    solvent-based products.
  • Low foaming, easy rising off.
  • Low alkali metals and ash levels (lt0.004)
  • Specifically formulated to ensure that no
    incremental trace elements can contribute to
    corrosion
  • Contains a unique blend of corrosion inhibitors

15
CleanBlade GTC1000 Product Features
  • Environmentally friendly, biodegradable
  • Where permitted, the cleaning solution can be
    discharged into the local sewer system,
    eliminating the need to collect the solution for
    disposal.
  • Safe to use
  • Contains no solvents (w/aromatic hydrocarbons)
    reducing the amount of protective clothing
    required during cleaning
  • Approved for use by GE Power Systems
  • Confirms fully with following GE Turbine
    specifications GEK103623B, GEK107122B,
    GEK107518A, GEK110529, GEI41042

16
Laboratory Cleaning Efficiency Test Apparatus
MIL-PRF-85704C (1998)
GE Proprietary
17
CleanBlade Lab Performance Capability
GE Proprietary
18
CleanBlade Lab Performance Capability
GE Proprietary
19
Steam Cleaning Efficiency TestingMIL-PRF-85704C
GTC1000
Benchmark
Benchmark
GTC1000
Solutions heated at 80oC
Solutions heated at 80oC
GTC1000
Benchmark
Benchmark
GTC1000
Solutions at room temp (35oC)
Solutions at room temp (35oC)
Soil on the panel was baked at 232oC for 15 min
testing with 77oC Stream
Soil being applied onto the panel testing with
54oC Stream
GE Proprietary
20
Accelerated Storage Stability Test
Steel (SAE-AMS5046) CleanBlade GTC1000 passed
the Accelerated Storage Stability Test
(MIL-PRF-85704C)
GE Proprietary
21
Cleaning Process
  • The local GE Water Process Technologies
    representative will work with the plant team to
    develop a specific cleaning procedure (frequency,
    dosage, flow rates ) utilizing GTC1000 for the
    on-site gas turbines
  • The procedure will following the turbine
    manufacturers instructions
  • What follows is a brief overview of the cleaning
    process

22
GTC1000 Cleaning Process
  • Step 1 Prepare cleaning solution
  • Mix GTC1000 (1 part) w/demineralized water (4
    parts) in day tank.

23
GTC1000 Cleaning Process
  • Step 2 Apply cleaning solution to GT
    compressor
  • Pump dilute GTC1000 cleaning solution according
    to cleaning procedure while GT is operating at
    crank speed for specified time
  • Continue pumping dilute GTC1000 cleaning solution
    during coastdown until day tank solution contents
    are empty.
  • Allow cleaning solution to soak for specified
    time
  • Depending on the level of fouling, repeat
    cleaning procedure as required

24
GTC1000 Cleaning Process
  • Step 3 Rinse GT compressor
  • Pump rinse water according to specified cleaning
    procedure while GT is operating at crank speed
    for specified time
  • Continue pumping rinse water
  • Repeat rinse cycle as specified by cleaning
    procedure as required

25
GTC1000 Cleaning Process
  • Step 4 Drain and Dry GT compressor
  • Allow gas turbine to drain and dry for specified
    time or until low point drains are dry at crank
    speed

26
CleanBlade US Field Trials
  • Six trials completed Five 7FAs and one 7EZ
  • 7FA trials General (9FA trials will probably be
    similar)
  • Have pulsed wash system (1 min pulses of
    wash/rinse water 3 min spins without water
  • Not much rinse water used foaming and rinsing
    are issues
  • 20 to 60 liter of detergent normally used
  • Sometimes there is a long distance from detergent
    tank to turbine (150-200 meters) Hence, must
    carefully monitor/plan timing of detergent
    additions
  • Results of cleanings have been positive. No
    negative comments from customers. Customer
    comments less foam and better rinsing
  • Have detailed performance data at one site
    (cleaning impact). Data from other sites
    available soon.
  • Want comparisons with competitive water-based
    cleaners at differing settings (industrial vs.
    rural vs. seacoast, etc.)

27
CleanBlade Cleaning Impact
  • Average Decrease in Heat Rate 47.3 BTU/KWhr
  • Annual Savings 246,500/year _at_ 3.5/MMBTU
  • Annual Savings 317,000/year _at_4.5/MMBTU

28
CleanBlade Application Data
  • Information/Data Needed from CleanBlade GTC1000
    Applications
  • Turbine model
  • Amount of actual employed detergent used
  • Temperature and amount of wash water used
  • How much is the actual product diluted
  • Ambient temperature
  • Site location Industrial? Rural? Suburban?
    Seashore?
  • When was the turbine cleaned last?
  • Was the spent cleaning solutiontrucked away?
    Discharged to a sanitary sewer system? Directly
    discharged?
  • Performance/efficiency data, before and after
    cleaning
  • Performance/efficiency data of a competitive
    product, before and ater cleaning
  • Was the foaming that was observed during cleaning
    excessive?
  • How did the customer rate the cleaning compared
    to competitive products?

29
Gas Turbine Performance Influencers
  • Air temperature

Effect of ambient temperature
30
GT Performance Influencers
  • Air humidity
  • Inlet and exhaust losses
  • Fuels
  • Fuel heating
  • Diluent injection
  • Air extraction
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