What does the compressor in a gas turbine mainly do?

The primary function of the compressor in a gas turbine is to compress atmospheric air. By compressing the air, the compressor increases its pressure and temperature, which is essential for efficient combustion when mixed with fuel. The higher pressure allows for a more effective combustion process, producing more energy from the fuel.

In the context of a gas turbine, this process is crucial because the energy produced during combustion is what drives the turbine's blades and ultimately generates power. The compressor plays a vital role in ensuring that there is enough air available at the right conditions to support efficient fuel combustion, leading to optimal performance of the gas turbine system. This is why the compression of atmospheric air is a key step in the operation of gas turbines.