The Brayton Cycle is a thermodynamic cycle that describes the operation of gas turbine engines. It consists of four main processes: compression, combustion, expansion, and exhaust. During compression, air is drawn in and compressed, increasing its pressure and temperature. Next, fuel is added and ignited in the combustion chamber, producing high-temperature gas. This gas then expands through a turbine, generating mechanical work. Finally, the exhaust gases are expelled, completing the cycle. The Brayton Cycle is commonly used in power generation and aviation due to its efficiency and ability to produce high power outputs.