Question

A pipe system is shown in the figure. The pipe has a diameter of 20 cm. Water flows from reservoir A to reservoir B. The elevation difference between the reservoirs is 10 m. The length of the pipe from A to the bend is 50 m, and the length of the pipe from the bend to B is 30 m. The total length of the pipe is 80 m. The friction factor is 0.02. Neglect minor losses. Determine the flow rate in the pipe. 

          A pipe system is shown in the figure. The pipe has a diameter of 20 cm. Water flows from reservoir A to reservoir B. The elevation difference between the reservoirs is 10 m. The length of the pipe from A to the bend is 50 m, and the length of the pipe from the bend to B is 30 m. The total length of the pipe is 80 m. The friction factor is 0.02. Neglect minor losses. Determine the flow rate in the pipe.
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A pipe system is shown in the figure. The pipe has a diameter of 20 cm. Water flows from reservoir A to reservoir B. The elevation difference between the reservoirs is 10 m. The length of the pipe from A to the bend is 50 m, and the length of the pipe from the bend to B is 30 m. The total length of the pipe is 80 m. The friction factor is 0.02. Neglect minor losses. Determine the flow rate in the pipe.

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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Water in the 40-ton capacity tank A, located 20 m below ground level, is transferred to tank B, which is located 30 m above ground level, via a pipe and pump every 12 hours. It is known that the pipes underground have a diameter of DN100 and are made of rough concrete, while the pipes above ground level have a diameter of DN40 and are made of plastic. Find the pump power (W). Note: Determine the Darcy friction factor for the pipes using the Colebrook equation. You must write the iterations you used in the equation in detail.
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Transcript

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00:02 So here upper water level is given as like this this is the upper water level and here will be the lower water level ok so from the base of lower water level today this level of upper water level this is the height is given as 1500 meter and from the upper level of this lower water level and to the upper level of this level the height is given as 20 meter ok so reservoir like water like this so water flow rate is water flow rate is equal to let it be m dot is equal to 2 kg per second so distance from the datum line to storage tank we can say it is tau 1 is given as distance from the datum line to storage tank it will be tau 1 is given as 1500 meter so then the tau 2 will be equal to 1500 minus 20 which is equal to 1480 meter so now diameter of pipe which is equal to diameter we can calculate diameter of pipe as dp which is equal to 3 .5 inch or we can say 0 .0889 meter so frictional losses in the system it we can calculate by hf as frictional lodges frictional losses in the system hf is given by 625 joule per kg and efficiency of pump is given as 75 percent efficiency of pump is given by 75 percent so the first one will so we use bernoulli's equation to find out the power bernoulli's equation find power i wish you to keep in mind that pressures are equal at two positions okay so it is here second position pressures are…
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