(c)The above pump is scaled up to 46 cm diameter operating in water at BEP at 1760rev/min. The measured NPSH is 4.88 m and the friction loss between the inlet andpump is 6.71 m. Will it be sufficient to avoid cavitation if the pump inlet is placed2.74 m below the surface of a sea level reservoir? The barometric pressure is 740 mmHg and the vapour pressure of water at the prevailing temperature is 26 mm Hg. Thespecific gravity of Hg is 13.55.(d)A 70 cm diameter centrifugal pump which is dynamically similar to the tested pumptabulated above, is delivering water at 1.26 m³/s against a 100m head. Determine theoperating speed in rev/min and the required power consumption. Note that the pumpis not necessarily running at the design point.Use SI system for your calculations where the pump speed N should be in rad/sec.You may take density of water as 1000 kg/m³ and standard acceleration of gravity g = 9.81m/s².

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(c) The above pump is scaled up to 46 cm diameter operating in water at BEP at 1760 rev/min. The measured NPSH is 4.88 m and the friction loss between the inlet and pump is 6.71 m. Will it be sufficient to avoid cavitation if the pump inlet is placed 2.74 m below the surface of a sea level reservoir? The barometric pressure is 740 mm Hg and the vapour pressure of water at the prevailing temperature is 26 mm Hg. The specific gravity of Hg is 13.55.

(c) The above pump is scaled up to 46 cm diameter operating in water at BEP at 1760 rev/min. The measured NPSH is 4.88 m and the friction loss between the inlet and pump is 6.71 m. Will it be sufficient to avoid cavitation if the pump inlet is placed 2.74 m below the surface of a sea level reservoir? The barometric pressure is 740 mm Hg and the vapour pressure of water at the prevailing temperature is 26 mm Hg. The specific gravity of Hg is 13.55.

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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