Dr. Ir. Harinaldi, M.Eng, Dr.Ir budiarso M.Eng.Mechanical Engineering Department

Faculty of Engineering University of Indonesia

CoMPRESSoRAND CENTRIFUGAL FAN

Elemens of a Centrifugal compressor

Elements of Centrifugal Compressor

Velocity diagrams for a centrifugal compressor

The Stanitz slip factor is best applied for radial vanes and with β2 = 0

By Euler’s pump is best applied for radial vanes and with β1 = 0

Mollier chart for a centrifugal compressor

INLET CASING

IMPELLER

Overall pressure ratio versus impeller tip speed (from Eq. (4.12)

Equation (4.11) can be written in terms of fluid properties and flow angles as follows since

Diffuser

INLET VELOCITY LIMITATIONS

Optimization of the mass flow function

Therefore, for a gas of known inlet stagnation conditions (e.g. the atmosphere),