The Brayton cycle is the ideal thermodynamic cycle for gas turbine engines.
It includes the following processes:
1. Isentropic compression in a compressor
2. Constant pressure heat addition in a combustion chamber
3. Isentropic expansion in a turbine
4. Constant pressure heat rejection to the surroundings
Gas turbines used in jet propulsion and power plants operate on this cycle. Incorrect options:
- Steam engines use the Rankine cycle.
- Diesel engines use the Diesel cycle.
- Heat pumps operate on a reversed Rankine cycle.