A centrifugal compressor is a type of mechanical device that increases the pressure of a gas by using rotational energy. It works by drawing in air or gas through an inlet and then spinning it rapidly using a rotating impeller. This spinning action pushes the gas outward, increasing its velocity and pressure before it exits through a diffuser. These compressors are commonly used in various applications, such as in air conditioning systems, gas turbines, and industrial processes. Their ability to efficiently compress large volumes of gas makes them essential in many industries, providing reliable performance in both small and large-scale operations.