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GE, Frame 9E, 2009, 127.214 MWe, 3000 RPM, Natural Gas

GE, Frame 9E, 2009, 127.214 MWe, 3000 RPM, Natural Gas

Description

  1. Overview
    1. Gas turbine model: Frame 9E
    2. Brand: GE
    3. Year of manufacturing: 2009
    4. Certificate module: A
    5. Ped/model/category: G/IV
    6. Nobo number as per installation in 2010: 38
    7. Nominal speed: 3000 rpm
    8. Net power output as per original specification: 127.214 MWe
    9. Unit date of installation/commissioning: 2010
  2. Generator Specifications
    1. Generator model: BDAX-450ERH
    2. Brand: Brush Electrical Machines Limited England
    3. Type: Turbogenerator
    4. Protection class: IP 55
    5. Spec: I.E.C60034-3
    6. Ambient temperature: 15 °C
    7. Altitude: Up to 1000 m
    8. Output: 3000
    9. Voltage: 15000
    10. Amps: 6199
    11. P.F: 0.8
  3. Gas Turbine Condition
    1. Currently operating/standby: Preservation
    2. Date of decommissioning/stop: 2015
    3. Total factored fired hours (FFH): < 500 FFH
    4. Total factored fired starts (FFS): < 100 FFS
    5. Date of last major inspection: 32 K when power augmentation is disabled
    6. Type of fuel: Natural gas
    7. Mode of operation: Not applicable
    8. Type of control system: Mark VIes, SIL
    9. Report of last major (or HGP) inspection performed in the engine with rotor in place: Not applicable
  4. Gas Turbine and Generator Condition Details
    1. The gas turbine and generator were last inspected in 2018 and were found to be in excellent condition.
    2. Since then, the unit and equipment have been enrolled in a preservation program to maintain the condition as was found in 2018.
    3. It is expected that the preservation program has led to a stable condition and that no degradation has taken place since 2018.
    4. A borescope inspection has been planned to confirm the expected condition of the equipment.
    5. The unit was installed in 2010 and commissioned in 2011; after a short testing period the unit was preserved until 2015.
    6. In 2015 the gas turbine was upgraded with late lean injection (LLI) and fully re-commissioned including performance test.
    7. Late lean injection enables emissions compliance at low loads resulting in an improved turndown.
    8. Due to technical constraints of the oil production system the unit was preserved again up till 2018.
    9. In 2018 another upgrade was installed enabling power augmentation with the means of steam which is extracted from the HRSG.
    10. Both upgrades are currently commercially available; more detailed information can be requested from company (under precondition).
  5. History
    1. 2009: Year of production
    2. 2010: Installation of equipment
    3. 2011: Commissioning of equipment
    4. 2011 to 2015: Equipment mothballed
    5. 2015: NPI upgrade LLI
    6. 2015 to 2018: Equipment mothballed
    7. 2018: NPI upgrade power augmentation; steam injection wrapper
    8. 2018 to today: Equipment mothballed
  6. Upgrades
    1. In 2015 LLI was installed under an NPI program of GE; high level overview of impacted parts:
    2. Wrapper modification to allow for fuel piping
    3. Modification of transition pieces with “headset” for secondary combustion
    4. Upgrade to 24K combustion hardware
    5. DLN skid; additional fuel valve and piping to allow for LLI
    6. In 2018 power augmentation was installed under a GE NPI program; high level overview of impacted parts:
    7. Wrapper modification to allow for steam injection to compressor air
    8. Steam injection control system and piping
    9. Installation of combustion dynamics monitoring
    10. Upgrade to 32K combustion hardware
    11. Upgrade of Mark VIes
    12. Upgrade of generation protection panels
    13. New HMIs
  7. Preservation Program
    1. Since the installation of the equipment, there have been several periods in which the equipment has been mothballed.
    2. The preservation program entails amongst others:
    3. Closed off air intake and exhaust duct allowing for closed loop air circulation (dried and heated)
    4. Oil systems active, automated temperature-based activation
    5. Space heaters are active
    6. HVAC systems are active
    7. Stand still heating generator online
    8. Periodic oil sampling
    9. Nitrogen blanketed piping
    10. Monthly operation of auxiliary equipment
    11. Bi-weekly and monthly inspections
    12. The rotor is not rotated as part of the preservation program to prevent damage to bearings and rotor
  8. Scope of Supply
    1. Systems: In scope
    2. Gas turbine: X
    3. Gas turbine lube oil system: X
    4. Hydraulic oil system: X
    5. Inlet guide vane system (trip oil) system: X
    6. Air inlet and exhaust: X
    7. Performance monitoring: X
    8. Cooling and sealing air system: X
    9. Gas fuel system: X
    10. Gas turbine auxiliary systems: X
    11. Cooling water system: X
    12. Compressor washing system: X
    13. Heating and ventilation systems: X
    14. Fire protection system: X
    15. This case is an unused Frame 9 complete power plant which is a serious installation and will take a serious project to relocate.
    16. This is a new plant and unused turbine.
  9. Specifications
    1. Gas turbine package model: PG9171