The turbine works in a closed cycle power plant.
Gas turbines heat a mixture of air and fuel at very high temperatures, causing the turbine blades to spin.
The spinning turbine drives a generator that converts the energy into electricity.
They basically involve 3 main sections:
- The compressor, which draws air into the engine, pressurizes it, and feeds it to the combustion chamber at speeds of hundreds of miles per hour.
- The combustion system, typically made up of a ring of fuel injectors that inject a steady stream of fuel into combustion chambers where it mixes with the air. The mixture is burned at temperatures of more than 2000 degrees F. The combustion produces a high temperature, high pressure gas stream that enters and expands through the turbine section
- The turbine is an intricate array of alternate stationary and rotating aerofoil-section blades. As hot combustion gas expands through the turbine, it spins the rotating blades. The rotating blades perform a dual function: they drive the compressor to draw more pressurized air into the combustion section, and they spin a generator to produce electricity
Once the blades of the turbine spin, it rotates the drive shaft which is connected to the generator that has large coil windings.
When the complete assembly rotates at high rpm, the generator generates the electromotive force and voltage and thus produces electricity.