Centrifugal compressors are a type of dynamic compressor that use rotating impellers to compress air or gas. They are commonly used in large industrial applications where high flow rates and high pressures are required. Centrifugal compressors work by accelerating the air or gas through the impellers, which increases its velocity. This high-velocity air or gas is then directed into a diffuser, where its velocity is converted into pressure. Centrifugal compressors are known for their efficiency and reliability, and they are often used in industries such as oil and gas, petrochemical, and power generation.