Water from a large tank (free surface) is used for irrigation and is pumped over a ridge through a 70cm diameter pipe, and a pressure of 190 kPa is maintained at the summit, where the pipe is 85m above the tank surface. The discharge is 1.50 m³/s with a head loss of 4.0 J/N between the tank and the summit. If the pump is 80% efficient, what is the input power furnished to the water?

Water from a large tank (free surface) is used for irrigation and is pumped over a ridge through a 70cm diameter pipe, and a pressure of 190 kPa is maintained at the summit, where the pipe is 85m above the tank surface. The discharge is 1.50 m³/s with a head loss of 4.0 J/N between the tank and the summit. If the pump is 80% efficient, what is the input power furnished to the water?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

5. Water from a reservoir is pumped over a hill through a pipe 90 cm in diameter, and a pressure of 200 KPa is maintained at the summit where the pipe is 90 m above the reservoir. The quantity pumped is 1.40 m3/s and by reason of friction there is a head loss of 3 J/N between reservoir and summit. If the pump is 90% efficient, determine the input power of the pump.
(b) Water is delivered from a truck (shown in Figure 1b) to a maximum 18m height above the hydrant. It is given the flow rate of the water is 0.05 m/s and the pressure from the 100 cm diameter outlet of the hydrant is 6.9 kPa. Neglect all the losses, design the power of the pump required in the truck. 18m 6.9kPa and 100 cm diameter hydrant Figure 1b
4. Water from a reservoir is pumped over a hill through a 90cm diameter pipe, and a pressure of 200kPa is maintained at the summit, where the pipe is 90m above the reservoir. The flow is 1.40cu.m./s and the headloss of 3.0J/N between the reservoir and the summit. If the pump is 90% efficient, what is the input power furnished to the water?
Two reservoirs A and B have elevations of 250m and 100m respectively. It is connected by a pipe having a diameter of 250mm and a length of 100m. A turbine is installed at point in between reservoirs A and B. If C = 120, compute the following if the discharge flowing in the pipeline is 150 liters/sec. Compute the power generated by the turbine.
2. Water is pumped from a lower reservoir using a 75 kW pump. If the height of water at the higher reservoir is 120m. And the flow rate of the pump is 0.03 m^3/s, what are the head losses of the system? 0.03 m's 120m 75kW Pump
From a reservoir whose surface elevation is at 30 m, water is pumped to an elevated reservoir at an elevation of 95 m. The head loss in the 60 cm diameter suction pipe is 10 m and that of the 50 cm discharge pipe is 15 m. Determine the following if the discharge is to be maintained at 480 liters per second. Assume total head loss between the two reservoirs is 20 m. Compute the power input of the pump assuming it operates at 80% efficiency.
Water from a reservoir is pumped over a hill through a pipe 90 cm in diameter, and a pressure of 200 kPa is maintained at the summit where the pipe is 90 m above the reservoir. The quantity pumped is 1.40 m/s and by reason of friction there is a head loss of 3 J/N between the reservoir and summit. If the pump is 90% efficient, determine the input power furnished to the water.
Water is pumped from reservoir A at elev. 30m through 1200m of 600mm pipe to reservoir B at elevation 90m. The pump is close to reservoir A and at the same elevation as A. A hydraulic motor is placed in the pipeline at a point midway on the length of pipe, and at elevation 80m. The motor delivers 51hp and is 70% efficient. With water delivery of 980 liters/sec, what will be the power output of the pump? What will be the pressure at entrance to and exit from the motor? Assume f = 0.022.
A pump is to deliver water at a rate of 1.4 m³/s from a sump to reservoir which is 10 km away through a steel pipe 1200 mm in diameter for a length of 5 km and the remaining through a PSC pipe of diameter 1000 mm. The elevation difference between the full tank level of the delivery reservoir and the low water level of the sump is 50 m. What is the Break Horse Power (in kW) requirement of the motor? Assume the pump house loss of 3.75 m and minor losses to be 10% of the friction losses. Use Darcy-Weisbach friction factor (f) of 0.018 for steel pipe and 0.02 for PSC pipe with a pump efficiency of 80%.
Water is pumped at the rate of 20 m3/s from the reservoir located at elevation 100 m and out through a 1.5-m suction line 200 m long connected to a steel pipe of 1.2-m diameter (after the pump) that is 150 m long to another reservoir (Elevation 140 m). If the pump is located at Elevation 110m, take the Hazen William's Constant to be 100 for all the pipes, determine the electrical rating of the pump if it is known to be 86% efficient. 23307.30 HP 27101.51 HP 16218.54 HP 36138.69 HP None of the above
Water from the reservoir is pumped over hill through a 90 cm diameter pipe, and the pressure of 200 kPa is maintained at the summit, where the pipe is 90 cm above the reservoir.The flow is 1.40 m^3/s with a headloss of 3.0 m between the reservoir and summit. If the pump is 90% efficient, what is the input power furnished to the water in KW. CHOICES: a.1734 b.1923 c.1865 d.1954
Water is pumped from the reservoir with a surface elevation of 200 m across the valley to another reservoir of surface elevation 216 m through a pipe line of 1300 m long and 30 cm diameter if during pumping the pressure is 5.6 kg/cm2 at a point half way along the pipe and at an elevation of 168 m. Compute the discharge and power of the pump taking friction factor as 0.02 neglect minor losses.