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Question: passage width hub to shroud absolute velocity diameter gravitational constant...

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passage width hub to shroud absolute velocity diameter gravitational constant head rotational speed rpm power Volume flow rare radius temperature impeller tip speed Work relative velocity blade number axial coordinate absolute flow angle with respect to tangent blade angle with respect to tangent flow coefficient ratio of specific heats efficiency real slip factor pressure ratio density theoretical slip factor power coefficient head coefficient rotational speed rad/s Subscripts impeller inlet impeller exit diffuser inlet diffuser exit stage exit blade fluid hub meridional radial component shroud tangential component axial component ZB Or n 01 фA centrifugal water pump is to be designed to produce Q = 4.54 m3 min ; H=21.34m and at -870 rpin Using an n value of -0.5. p-2m2 /-0.715 and to estimate ; Slip factor of 0.8 Hydraulic efficiency use ηΗ-- 4 where Q is in GPM & 1m 264.17GPM Determine the geometry of the impeller: a) The impeller tip speed U2 b) Impeller exit diameter d2 c) Impeller exit width b2 d) e) nB 2b

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