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Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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
Transcribed Image Text:8.6 A single sided centrifugal compressor is to deliver 14 kg of air per
second when operating at a pressure ratio of 4:1 and a speed of 12,000
rpm. The total head inlet conditions may be taken as 288 K and 1.033
kgf/cm2. Assuming a slip factor as 0.9, a power input factor of 1.04
and an isentropic efficiency (based on total head) of 80%, estimate the
overall diameter of the impeller. If the Mach number is not to exceed
unity at the impeller tip and 50% of the losses are assumed to occur
in the impeller, find the minimum possible depth of the diffuser.
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