A•, PK/s ull E ZAIN IQAsiacellد واجب الفصل الثا. . .A single stage centrifugal pump has an impeller of 250 mm diameterwhich rotates at 1,800 rpm and lifts 60 lit/sec to 25 m with an efficiencyof 70%. Obtain the number of stages and diameter of each impeller of asimilar multi-stage pump to lift 75 lit/sec to 175 m at 1,500 rpm.(8 stages ; 280 mm dia)The impeller of a centrifugal pump has an outer diameter of 35 cm andruns at 1,000 rpm. The blades are bent at 150° to the direction of motionat discharge and the radial velocity of flow is constant through theimpeller at 2'5 m/sec. The measured head across the pump is 20 m andthe frictional resistance of the pump is estimated to be 2 m. Find theefficiency according to velocity triangles.(76'4%)

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A single stage centrifugal pump has an impeller of 250 mm diameter which rotates at 1,800 rpm and lifts 60 lit/sec to 25 m with an efficiency of 70%. Obtain the number of stages and diameter of each impeller of a similar multi-stage pump to lift 75 lit/sec to 175 m at 1,500 rpm. (8 stages ; 280 mm dia)

A single stage centrifugal pump has an impeller of 250 mm diameter which rotates at 1,800 rpm and lifts 60 lit/sec to 25 m with an efficiency of 70%. Obtain the number of stages and diameter of each impeller of a similar multi-stage pump to lift 75 lit/sec to 175 m at 1,500 rpm. (8 stages ; 280 mm dia)

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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