Design of an axial flow compressor

•    Axial compressors consist of two members, a rotating rotor and a stationary stator.

•     The rotor gives energy to the fluid flow while the stator increases pressure and keeps the fluid flow from spiraling around the axle of rotation.

•    The axial flow compressors have several stages to increase the compressor compression ratio to the needed amount.

•     Use of velocity diagrams will determine the blade angles.

•     To determine the average stage pressure ratio (ASPR) for an axial compressor use the relationship below, where PR is the total pressure ratio for the compressor and n is the number of stages used.