Gas turbines are rotary engines that convert the energy of compressed and heated air mixed with fuel into mechanical energy, often used for power generation or propulsion. They operate in three main stages: compression, combustion, and expansion. Air is compressed, mixed with fuel, ignited in the combustion chamber, and then expelled through turbine blades, causing the rotor to spin. Gas turbines are valued for their high efficiency, quick start-up times, and versatility, finding applications in power plants, aircraft propulsion, and industrial processes. Their ability to use various fuels, including natural gas and liquid fuels, makes them a key component in modern energy systems.