The document describes the components and operational philosophy of the MS9001E gas turbine used in a combined cycle power plant. It details the turbine's key parts such as the axial compressor, combustor, and turbine rotor, along with their functions in the Brayton cycle. Additionally, it outlines the ancillary systems supporting gas turbine operations, including air intake, lubrication, cooling, and the starting methods utilizing a static frequency converter.

1. INDUSTRIAL GAS TURBINE COMPONENTS

2. COMBINED CYCLE POWER PLANT
MUARA TAWAR BLOK 5

3. GAS TURBINE OPERATION PHILOSOPY
T
P
V S
Generator Compressor
Combustion
Chamber
Turbine
Air Intake
Fuel
Exhaust
1
2 3
4 1
2
3
4
1-2 : Isentropic
Process
2-3 : Isobaric
Process
3-4 : Isentropic expansion
4-1 : Isobaric heat
rejection
Ignition
Brayton Cycle

4. GAS TURBINE COMPONENTS
Main Component of
Gas turbine
An axial air compressor A Combustor The Turbine

5. General unit Information :
• The MS9001E also known as frame 9E or PG9161E.
• Designed for power generation for either simple cycle or
combined cycle applications
• Running in 50 Hz frequency
• Output capacity is about 107 MW
• Capable to run by dual fuel (Natural Gas or liquid diesel oil) with
fuel switching capability
• Capable to running on a grid system as a base load, peaker, or
standby reserve unit
• Currently it is running by a speedtronic Mark VIe control system

6. GAS TURBINE UNIT MS9001E

7. AXIAL FLOW COMPRESSOR
The pressurized air entering
the combustion chamber is
delivered by the axial
compressor. Compressor
supplied air by the air intake
system. The air drawn in flows
from the outside to inside
through the filter element.

8. THE COMRESSOR ARE CONSISTING OF 2 MAJOR
COMPONENTS :
The compressor rotor
The compressor stator
It is 17 stages of axial flow compressor
with a variable Inlet guide vane. Air is
compressed to pressure ratio 12 : 1

9. COMBUSTOR :
Combustion liquid or gaseous
fuel is continuously burned and
the required oxygen for the
firing process is taken from the
compressor air. At the
combustor chemical energy of
the fuel is converted into
thermal energy. In the
combustor liquid fuel or
gaseous burn fuel mixed with
air received from the
compressor. The heat is
released in such away that the
hot combustor gas flows in a
smooth stream to the turbine
blades where it is accelerated
and expanded

10. TURBINE ROTOR :
Converts the thermal
energy of the combustor
fuel into angular
mechanical power to
drive the axial
compressor and the
generator.

11. TURBINE ROTOR
• Rotor
it has function to transform mechanical energy into torque
then transfer it to the compressor and the generator

12. TURBINE MAJOR COMPONENTS
Turbine Rotor
Turbine Stator

13. THE BEARING ASSEMBLY

14. 1. Air Intake Systems
2. Lubrication Oil Systems
3. Compressor and Blowoff Systems
4. Cooling Water Systems
5. Cooling and Sealing Air Systems
6. Fuel Gas Systems
7. Ignition Fuel Systems
ANCILLARY GAS TURBINE SYSTEM COMPONENTS

15. AIR INTAKE SYSTEMS
The air intake system supplies
the compressor with sufficient
clean, dry air to support the
combustion process and the
cooling and sealing
requirements of the thermal
block. The air drawn in flows
from the outside to inside
through the filter element.

16. VARIABLE INLET GUIDE VANE
A gas turbine engine in which the angle of
the inlet guide vanes can be changed to
meet the requirements of the engine-
operating conditions. These are normally in
front of the first stage of an axial
compressor and sometimes in the
subsequent stages as well. Normally, they
are closed during engine starting and low
RPM, but they open progressively as the
RPM is increased. At low RPM, the angle of
attack of the low-pressure blades is kept
moderate to avoid stalling. Variable-inlet
guide vanes are not common in front of the
turbine

17. LUBE OIL SYSTEMS :
The lube oil system performs the following functions:
1.Supplies lube oil for lubrication and cooling to the
bearings of the gas turbine generator set
2.Supplies oil to power oil system
3.Supplies oil to the jacking system

18. LUBE OIL SYSTEMS

19. JACKING OIL SYSTEM

20. Rotor Barring System

21. Hydraulic Rotor Barring System
Hydraulic Rotor Barring System Function
The hydraulic rotor barring system
is used to turn the rotor before
start-up and after run-down of the
gas turbine to ensure uniform
cooling of the rotor in order to
prevent rotor bending.

22. POWER OIL SYSTEM
Power Oil System Function :
The power oil system supplies pressurized and filtered oil via power oil
distribution system to the protection system and to the hydraulically operated
equipment of the gas turbine under all operating conditions:
- Gas turbine hydraulic trip unit (EHSS).
- Control valves of fuel gas, fuel oil and NOX water
- Compressor variable inlet guide vanes (VIGV).

23. COMPRESSOR BLOW OFF SYSTEM

24. COOLING WATER SYSTEM
Cooling water system is a closed system and the
function of the cooling water system is :
- cooling lube oil, (indirectly cooling the bearings)
- cooling air generator (indirectly cooling the generator)

25. COOLING WATER SYSTEMS

26. COOLING AND SEALING AIR SYSTEMS

27. COOLING AND SEALING AIR SYSTEMS

28. COMBUSTOR

29. THREE MAIN GT COMBUSTOR TYPES

30. MULTI – CAN COMBUSTOR

31. TUBOANNULAR (CAN – ANNULAR) COMBUSTOR

32. ANNULAR COMBUSTOR

33. CAN – ANNULAR COMBUSTOR

34. TUBULAR COMBUSTOR

35. STARTING GAS TURBINE METHODS :
1. Diesel Engine
2. Auxiliary Power Unit (APU)
3. Static Frequency Converter (SFC)

36. STATIC FREQUENCY CONVERTER
Static starting devices, also called static
frequency converter (SFC), have been utilized
to start gas turbines in gas turbine combined
cycle (GTCC) power plant, etc. In general, a gas
turbine is started using a generator functioning
as synchronous motor with single shaft
arrangement that is rotated by the
electric power fed from the SFC.

37. INFORMATION ABOUT WORKING PRINCIPLE OF SFC
The function of SFC transformer is to change or to
reduce the medium switchgear voltage of 6.3 kV to SFC
rating voltage 3.7 kV. This rating voltage is used as the
input voltage to the converter. Output voltage of SFC
transformer are rectified by the converter into DC
voltage which can be adjusted according to the ignition
angle α. Because this DC voltage has too ripple voltage
so it needed DC reactor to reduce the ripple on the
output converter. Then, this filtered DC voltage is
changed again to AC voltage that can be varied between
0 to 3300 volts which is then supplied to the generator
that functions as a synchronous motor for acceleration
at start-up power plant.

38. CARA KERJA SFC

39. CARA KERJA SFC
1. Tegangan jaringan diturunkan menggunakan transformer step down
hingga menjadi tegangan yang cocok untuk input inverter.
2. Converter mengkonversi tegangan AC ke DC. Output converter berupa
DC variable (bervariasi) yang artinya frekuensinya dapat diubah
tergantung pengaturan trigger thrystor pada converter
3. Tegangan DC yang dihasilkan memiliki riak. DC reactor menghilangkan
riak tersebut.
4. Inverter mengubah tegangan DC ke AC. Output inverter berupa AC
variable (bervariasi).
5. Generator berubah fungsi sebagai motor sinkron selama start up
6. Panel kontrol SFC berfungsi mengontrol converter dan inverter, dan
mengawasi sinyal error dari peralatan tersebut selama kondisi turning
(3rpm) sampai kecepatan sesuai settingnya (3000rpm).

40. TWIN SHAFT GAS TURBINE

41. TWIN SHAFT GAS TURBINE