1.) Water at 20°C is pumped at a constant rate of 9 m^3/h from a large reservoir resting On the floor to the open top of an experimental absorption tower. The point of discharge is 5 m above the floor, and frictional losses in the 50-mm pipe from the reservoir to the tower amount to 2.5 J/kg. At what height in the reservoir must the water level be kept if the pump can develop only 0.1 kW?

1.) Water at 20°C is pumped at a constant rate of 9 m^3/h from a large reservoir resting On the floor to the open top of an experimental absorption tower. The point of discharge is 5 m above the floor, and frictional losses in the 50-mm pipe from the reservoir to the tower amount to 2.5 J/kg. At what height in the reservoir must the water level be kept if the pump can develop only 0.1 kW?

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

Reservoir X (Elevation 369m) supplies water to reservoir Y (Elevation 195m) thru a 400 mm pipe. A turbine is installed in the same level with Reservoir Y. The total system flow is 220 gpm determine the the output power in Hp if the turbine is 65% efficient and the total headloss of the system is 4.5m.
Reservoir A (Elevation 300m) supplies water to reservoir B (Elevation 180m) thru a 450 mm ductile iron pipe. A turbine is installed in the same level with Reservoir B. The total system flow is 350 gpm determine the the output power in Hp if the turbine is 75% efficient and the total headloss of the system is 3.5m.
In a 225 mm pipeline 0.14 m3/s of water are pumped from a reservoir of surface elevation30 over a hill of elevation 50. A pump of what power is required to maintain a pressure of 345kPa on the hilltop if the head lost between reservoir and hilltop is 6 m?
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 sunction and discharge pipe are 500 mm,1500 m and 300 mm, 1000 m respectively. assumme a head lose of 2 meters per 100 m length of the sunction pipe and 3m per 100 m length of the discharge pipe. what is the required horsepower of the pump?
A centrifugal pump draws water from a 38cm pipe from an open reservoir in which the water surface is 2.6m below the pump centerline and discharges through a 30cm pipe. At a point in the discharge 2.35m above the pump centerline a pressure gage reads 320 kPa gage. The discharge is 200Liters/sec, the head loss in the suction is 0.15m and in the discharge is 1.05m. Power input to the pump is 140hp. Determine the following: a. The total dynamic head in meters 36.923 41.527 39.188 b. The Water Power (WP) in kW 76.863 80.451 81.451 c. The pump efficiency in percent 77.659 73.596 80.876
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 meters 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? **provide complete solution using bernoullis equation..provide illustration with labels like datum line and such** Show all formula derivation
A centrifugal pump delivers 25 liters of water per second against a head of 10 meters and running at 1300 rpm requires 10 kW of power. Determine the discharge, head of the pump and power required if the pump runs at 1500 rpm. (Ans. 0.0288cumec or 1.73 cu.m./min , 13.31m, 15.36kw)
A certain hydropower plant is being supplied by river flow of 900 cubic ft/sec and the head on the site is 200 ft. To develop maximum capacity it was proposed to install 2 turbines, one of which is 1.5 times the capacity of the other. Both turbine units are assumed to have efficiency of 85%. Determine (a) the total power developed, (b) what is the power developed by turbine #1 and by turbine #2 and (c) Rotative speed of each turbine unit assuming specific speed equal to 70 rpm.
From a very large tank with an absolute pressure of 3 bar, the water is discharged to the atmosphere by means of 2 smooth pipes of 100 m length, 1 m and 50 m long, connected in series. The height difference between the water level in the tank and the outlet is 50m, and the diameters of the pipes are 50mm and 100mm, respectively. In addition, a 500kPa turbine is placed on the 2nd Pipe. a) Draw the system roughly, show the dimensions on it.b) Calculate the exit velocity of the water from the 2nd pipe, ignoring the local losses.
Theoretically, what diameter of standard, sharp-edged orifice will be required to produce a discharge of 1.25 cfs of water under a head of 11.5 ft?
Calculate the total head of the system below. Assume a flow of 70 m³/h and that the pressure drops in the suction and discharge are 3 m and 4 m, respectively. ZA = 15m, ZB = 5m and ZC = 5m.
A pump was installed with a suction head of 6 meter and a discharge head of 10 meters. The discharge rate of the pump is 60 liters per minute. What is the water horsepower of the pump?