Sub-class of dynamic axisymmetric work-absorbing turbomachinery
Centrifugal impeller, shown aloneCentrifugal compressor shown (in blue) as part of a turbochargerCentrifugal compressor shown (in blue) as second stage of a axi-centrifugal jet-engine
Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.[1]
They achieve pressure rise by adding energy to the continuous flow of fluid through the rotor/impeller. The equation in the next section shows this specific energy input. A substantial portion of this energy is kinetic which is converted to increased potential energy/static pressure by slowing the flow through a diffuser. The static pressure rise in the impeller may roughly equal the rise in the diffuser.
^Shepherd, Dennis G. (1956). Principles of turbomachinery (6th ed.). New York: Macmillan. LCCN 56002849. OCLC 5899719.
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