Two water reservoirs are joined by a sharp ended flexible pipe 100 mm in diameter and...

Two water reservoirs are joined by a sharp ended flexible pipe 100 mm in diameter and 36 m long. The ends of the pipe differ in level by 4 m. The surface level of the upper reservoir is 1.8 m above the pipe inlet whilst that of the lower reservoir is 1.2 m above the pipe outlet. At a position 7.5 m horizontally from the upper reservoir, the pipe is required to pass over a barrier. Assuming that the pipe is kept straight between the inlet and the top of the barrier and that the average friction factor is 0.01, find the greatest height to which the pipe may rise at the barrier if the absolute pressure in the pipe is not to drop below 40 kN/m2. You may ignore losses at the bends in the pipe but all other losses should be included in the calculation. Use values for k as given in the lecture notes. Take atmospheric pressure as 1.013 bar. (ans.: 6.04 m above inlet)

Expert Solution

samet mamat answered 2 years ago

) A 50 mm-diameter propeller was installed in a 150 mm-diameter water pipe and the propeller...

) A 50 mm-diameter propeller was installed in a 150 mm-diameter water pipe and the propeller speed was measured for a range of water discharge in the pipe. The water had a density and dynamic viscosity of 1000 kg/m3 and 0.00112 Ns/m2 respectively. The measured results were as follows: Q (litres/s): 12 28 45 63 95 120 160 180 N (rps): 5 10 15 20 30 40 60 80 Plot the dependence of propeller coefficient against propeller Reynolds number. A...

Water flows through a cast iron pipe with a diameter of 30 mm. The pipe is...

Water flows through a cast iron pipe with a diameter of 30 mm. The pipe is inclined at an angle of 3 degrees from horizontal and is 40 m long. The water flows due to gravity only. What is the maximum volume flow rate of the water? You may ignore any minor loses.

Water flows between two reservoirs through 800 ft of 12-inch diameter welded-steel pipe. The water surface...

Water flows between two reservoirs through 800 ft of 12-inch diameter welded-steel pipe. The water surface elevation difference between the two reservoirs is 16 ft. Find the flowrate (a) assuming head loss is only due to pipe friction, and (b) Accounting for both friction losses and minor losses due to a flush square-edged pipe entrance, the pipe exit, and a half-open gate valve in the line. Assume the water temperature is 60°F.

The steel pipe (100 mm outer diameter) is covered with two layers of insulation. The 40...

The steel pipe (100 mm outer diameter) is covered with two layers of insulation. The 40 mm thick inner layer has a thermal conductivity of 0.07 W / (mK). Outer layer, 20 mm thick has a thermal conductivity of 0.15 W / (m K). The pipe is used to drain 500 kPa pressurized steam. The temperature on the outer insulation surface is 24 ° C. If the pipe is 8 m long, determine the following: (assuming that the conduction heat...

1)10 m3 /h of water flows through a pipe with 100 mm inside diameter. Calculate the...

1)10 m3 /h of water flows through a pipe with 100 mm inside diameter. Calculate the flow velocity inside this pipe. ? 2) A river discharges 100 m3 of water to the sea every 2 seconds. What is the flow-rate of this river expressed in m3/s?

A cast iron water pipe of 500 mm inside diameter and 20 mm thick, is supported...

A cast iron water pipe of 500 mm inside diameter and 20 mm thick, is supported over a span of 10 meters. Find the maximum bending stress in the pipe metal, when the pipe is running full. Take density of cast iron = 70.6 kN/m3 and water = 9.8 kN/m3

A pipe, 900 m long and 200 mm in diameter discharges water to the atmosphere at...

A pipe, 900 m long and 200 mm in diameter discharges water to the atmosphere at a point 10 m below the inlet level. With an inlet pressure of 40 kPa gauge, the flow rate is 40 litres/sec. At a point half way between the pipe inlet and outlet, a new tapping is made from which water is taken at a rate of 18 litres/sec. To what value must the inlet pressure be raised in order to maintain the same...

1200 cm3/sec of water at 420 K is pumped in a 40 mm internal diameter pipe...

1200 cm3/sec of water at 420 K is pumped in a 40 mm internal diameter pipe through a length of 150 m in a horizontal direction and up through a vertical length of 10 m . In the pipe there is a control valve which may be taken as equivalent to 200 pipe diameters and other pipe fittings equivalent to 60 pipe diameter. Also in the line there is a heat exchanger across which there is a loss in head...

in an oil factory, a pipe (roughness = 0.85 mm & diameter 160 mm) carries a...

in an oil factory, a pipe (roughness = 0.85 mm & diameter 160 mm) carries a fluid (specific gravity of 0.95 & viscosity 0.0061 N.s/m2) at a rate of 109. L/s. Determine; a. Flow is laminar or turbulent b. Friction factor f using explicit equation of Laminar or turbulent flow (Haaland equation) c. The head loss d. The shear stress at the pipe wall e. Velocity 30mm from the centerline f. The behavior of pipe whether fully rough, transitional, or...

In a galvanised steel water supply line 100 m long and 50 mm in diameter, water...

In a galvanised steel water supply line 100 m long and 50 mm in diameter, water is pumped from a reservoir to a vented storage tank at an elevation 8 m above it. The following fittings are use: 1 hinged foot valve with strainer, 3 x 90? elbows, 2 gate calves (open), 20 screwed sockets, 1 sudden exit. The water viscosity is 1 x 10-6 m2/s and the density is 1000 kg/m3. (a) Calculate the friction factor at a flow...

Question