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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The pressure rise, ∆p, across a centrifugal pump of a given shape (see Fig. P13.21a) can be expressed as where D is the impeller diameter, the angular velocity of the impeller,ρ the fluid density, and Q the volumetric rate of flow through the pump. A model pump having a diameter of 8 in. is tested in the laboratory using water. When operated at an angular velocity of 40π rad/s the model pressure rise as a function of Q is shown in Fig. P13.21b. Use this curve to predict the pressure rise across a geometrically similar pump (prototype) for a prototype flow rate of 6 ft3 /s. The prototype has a diameter of 12 in. and operates at an angular velocity of 60 π rad/s. The prototype fluid is also water.

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