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Gas Power Generation (Combined Cycle Gas Turbine (Advantages (Less…
Gas Power Generation
Combined Cycle Gas Turbine
Advantages
Less emissions than conventional Thermal Power Plants.
Low cost : installed MW rate
High efficiency
Low surface: installed MW rate
Flexibility
: The power plant can operate at full or partial loads, till a technical minimum
Low cooling water consumption
Short construction periods
Process
CCGT has the same process as OCGT only that
Heat recovery system captures exhaust.
A Heat Recovery Steam Generator (HRSG) captures exhaust heat from the gas turbine that would otherwise escape through the exhaust stack.
The HRSG creates steam from the gas turbine exhaust heat and delivers it to the steam turbine
Steam turbine delivers additional electricity.
The steam turbine sends its energy to the generator drive shaft, where it is converted into additional electricity.
https://www.youtube.com/watch?v=Om7oBQm-Gos
Open Cycle Gas Turbine
Advantages
Less space needed
More dominant peak load power demand
Process
Air flows into the compressor
Air is Compressed
Fuel is Injected to the Combustor
Hot gas creasted from the ignited mixture flows & Forces the turbine to spin
Causes the Drive Shaft which is connected to the generator to rotate
The generator has magnet and coils and when the magnet turns very fast it will induce magnetic field
This cause electron to flow thus electricity is generated
Open Cycle Gas Turbine video
https://www.youtube.com/watch?v=m4kvSLlxAaI
