A centrifugal pump rotates at 1500 revolutions per minute to transport water with a bulk velocity of 1 m/s through a circular pipeline which has an internal diameter of 300 mm. The total head rise delivered by the pump is 25 m, and the total hydraulic head loss through the pump is 5 m. The impeller has an inner diameter of 120 mm, and the width of the inlet to the impeller is 60 mm. The circumferential area of the impeller inlet and outlet is reduced by 12% due to the effect of vane thickness, and the radial velocity through the impeller is constant. The vane outlet angle is 60° to the radial direction. The volumetric efficiency is 96%, the mechanical efficiency is 90%, and the reduction in theoretical head due to relative circulation is 29%. Assume no swirl at the inlet to the impeller.

A centrifugal pump rotates at 1500 revolutions per minute to transport water with a bulk velocity of 1 m/s through a circular pipeline which has an internal diameter of 300 mm. The total head rise delivered by the pump is 25 m, and the total hydraulic head loss through the pump is 5 m. The impeller has an inner diameter of 120 mm, and the width of the inlet to the impeller is 60 mm. The circumferential area of the impeller inlet and outlet is reduced by 12% due to the effect of vane thickness, and the radial velocity through the impeller is constant. The vane outlet angle is 60° to the radial direction. The volumetric efficiency is 96%, the mechanical efficiency is 90%, and the reduction in theoretical head due to relative circulation is 29%. Assume no swirl at the inlet to the impeller.

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

See similar textbooks

Similar questions

27. MTTR includes several activities divided into three groups and these are:
Q3/ Choose the correct option:-
6. What is meant by normal neutral plane ?
In step 4, it should be the A and not the y right? So it should be FBD divided by 4.04 which is the cross-sectional area and not 6.9 which is the distance?
Show the mass of a flywheel needed to keep a machine’s speed within specified limits.
8
A calliper brake is required for the front wheels of a van with a braking capacity of 900 Nm for each brake. Preliminary design estimates have set the brake geometry as ri=100 mm, To=160 mm and 0=45°. A pad with a coefficient of friction of 0,3 has been selected.
What is a standpipe?
the suffix meaning
H4.
Explain the concept of Charle's Law in opening soda cans.
10. Machine refers to the manufacturing equipment. A. True B. False