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Cosa (chi) è impeller$37838$ - definizione
SUB-CLASS OF DYNAMIC AXISYMMETRIC WORK-ABSORBING TURBOMACHINERY
Centrifugal compressors; Centrifugal-flow; Radial compressor; Radial compressors; Impeller compressor
![Figure 5.1 – Illustration of the [[Brayton cycle]] as applied to a gas turbine.](https://commons.wikimedia.org/wiki/Special:FilePath/Brayton cycle.svg?width=200 "Figure 5.1 – Illustration of the [[Brayton cycle]] as applied to a gas turbine.")
![A low speed, low-pressure centrifugal compressor or [[centrifugal fan]], with upward discharging cone used to diffuse the air velocity](https://commons.wikimedia.org/wiki/Special:FilePath/CentrifugalCompressor.jpg?width=200 "A low speed, low-pressure centrifugal compressor or [[centrifugal fan]], with upward discharging cone used to diffuse the air velocity")
![Figure 4.1 – [[Jet engine]] cutaway showing the centrifugal compressor and other parts.](https://commons.wikimedia.org/wiki/Special:FilePath/DH Goblin annotated colour cutaway.png?width=200 "Figure 4.1 – [[Jet engine]] cutaway showing the centrifugal compressor and other parts.")
![Centrifugal compressor shown (in blue) as second stage of a axi-centrifugal [[Jet-engine]]](https://commons.wikimedia.org/wiki/Special:FilePath/Saturn MD-120 cutaway.jpg?width=200 "Centrifugal compressor shown (in blue) as second stage of a axi-centrifugal [[Jet-engine]]")
![Centrifugal compressor shown (in blue) as part of [[Turbocharger]]](https://commons.wikimedia.org/wiki/Special:FilePath/Turbocharger.jpg?width=200 "Centrifugal compressor shown (in blue) as part of [[Turbocharger]]")
![Figure 4.2 – [[Jet engine]] cross section showing the centrifugal compressor and other parts.](https://commons.wikimedia.org/wiki/Special:FilePath/Turbojet operation-centrifugal flow-en.svg?width=200 "Figure 4.2 – [[Jet engine]] cross section showing the centrifugal compressor and other parts.")
impeller
![Coin]] for comparison, diameter 16.25 mm.)](https://commons.wikimedia.org/wiki/Special:FilePath/Impellerrad.jpg?width=200 "Coin]] for comparison, diameter 16.25 mm.)")
ROTOR USED TO INCREASE (OR DECREASE IN CASE OF TURBINES) THE PRESSURE AND FLOW OF A FLUID OR GAS
Impellor
(also impellor)
¦ noun the rotating part of a centrifugal pump, compressor, etc. designed to move a fluid.
?a similar device used to measure speed or distance travelled through water.
Impeller
ROTOR USED TO INCREASE (OR DECREASE IN CASE OF TURBINES) THE PRESSURE AND FLOW OF A FLUID OR GAS
Impellor
·noun One who, or that which, impels.
Centrifugal compressor
Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.
Wikipedia
Centrifugal compressor
Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.
They achieve pressure rise by adding energy to the continuous flow of fluid through the rotor/impeller. The following equation 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.
