Chapter 11, Problem 11.2.1P

A dam supplies to a suburban area using a 0.21m diameter pipeline that is 800m long. For the water to reach the intended reservoir, a pump is needed to raise the flow to a point 125m above the pump. If the flow within the pipe is 0.11 m3/s, determine the savings in horsepower if the engineers decided to replace the old pipe (f = 0.034 with a new 0.29m diameter pipe with f = 0.024.

A pump is being utilized to deliver a flow rate of 500 li/sec from a reservoir of surface elevation of 65 m to another reservoir of surface elevation 95 m. The total length and diameter of the suction and discharge pipes are 500 mm, 1500 m and 30 mm, 1000 m respectively. Assume a head lose of 2 me- ters per 100 m length of the suction pipe and 3 m per 100 m length of the discharge pipe. What is the required horsepower of the pump? PLEASE INCLUDE FIGURE AND DERIVATION

A cylindrical vessel 4-ft in diameter and 6-ft high has a round-edged orifice 2” in diameter in the bottom. The coefficient of discharge of the orifice is 0.95. If the vessel is filled with water, how long will it take to lower the water surface to a height of 4 ft?

Determine the flow in each pipe in the 3 reservoirs shown.

What will be the discharge of a closed conduit 1 m in diameter if it is ¼ full and the velocity of flow in the conduit is 10 m/s?  A) 0.153 m3/s B) 542 ft3/s C) 3252 ft3/min D) 405.5 gal/ min

Determine the required break horsepower of the pump if the required discharge of flow is 18 L/sec and the Pumps efficiency is 90%

It is required to pump water at the rate of 8.750 gpm from a reservoir whose surface is at an elevation of 180 ft to a tank whose bottom is at an elevation of 372 ft, The pump is placed at an elevation of 192 ft, the diameter of the suction pipe is 30 inch, the length of the pipe from the pump to the tank is 290 ft, and the estimated size of this pipe is 24 inch. The sum of the minor head losses in the suction and discharge pipe may be taken as 1.5 ft, if the maximum depth of water in the tank is to be 25 ft, what is the required horsepower of a pump for which the overall efficiency is 67 percent? Assume head loss due to friction in 290 ft + 2 ft Neglect all other head losses.

A pump is being utilized to deliver a flow rate of 500 li/sec from a reservoir of surface elevation of 65 m to another reservoir of surface elevation 95 m. The total length and diameter of the suction and discharge pipes are 500 mm, 1500 m and 30 mm, 1000 m respectively. Assume a head lose of 2 me- ters per 100 m length of the suction pipe and 3 m per 100 m length of the discharge pipe. What is the required horsepower of the pump? (PLEASE USE BERNOULLI'S ENERGY EQUATION) AND INCLUDE COMPLETE SOLUTION

If a net head of 150 m is to be generated through pumps of specific speed 30, rotational velocity 1450 RPM, and discharge rate of 0.2 m3/sec, determine the number of pumps required.