15.9 A backward-swept centrifugal fan develops a pressure of 75 mm W.G. It has an impeller diameter of 89 cm and runs at 720 rpm. The blade air angle at tip is 39° and the width of the impeller 10 cm. Assuming a constant radial velocity of 9.15 m/s and density of 1.2 kg/m³, determine the fan efficiency, discharge, power required, stage reaction and pressure coefficient. (Ans.) n = 82.16%; Q=2.558 m³/s; P = 2.29 kW; R = 66.8%; and = 1.328

15.9 A backward-swept centrifugal fan develops a pressure of 75 mm W.G. It has an impeller diameter of 89 cm and runs at 720 rpm. The blade air angle at tip is 39° and the width of the impeller 10 cm. Assuming a constant radial velocity of 9.15 m/s and density of 1.2 kg/m³, determine the fan efficiency, discharge, power required, stage reaction and pressure coefficient. (Ans.) n = 82.16%; Q=2.558 m³/s; P = 2.29 kW; R = 66.8%; and = 1.328

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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