4.5.5. Water flows in a 1,200-m-long, ductile iron pipeline connecting two reservoirs. The flow iscontrolled by a gate valve just upstream of the lower reservoir. When the valve is fully openin the 0.5-m-diameter pipeline (2.0 cm wall thickness and free to move longitudinally), theflow rate is 1.35 m³/s. If the valve is closed in 1.5 s, determine the maximum water hammerpressure.

Answered: Image /qna-images/answer/98a391df-7c3a-4f5e-9c27-6615e52be2f9.jpg

Answered: 4.5.5. Water flows in a 1,200-m-long,…

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

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4b
Water from a reservoir passes over a dam through a turbine and discharges from a 70-cm ID pipe at a point 95 m below the reservoir surface. The turbine delivers 0.950 MW. Calculate the required flow of water in m3/min if friction is neglected. If friction were included would a higher or lower flow rate be required? (Note: The equation you will solve in this problem has multiple roots. Find a solution less than 1.0 m3/s.) V=___m^3/min?
1. Water flows at a rate of 0.020 m3/s from reservoir A to reservoir B through three %3D concrete pipes connected in series, as shown. Find the difference in water surface elevation in the reservoirs. Use f = 0.026 for all pipes. Neglect minor losses. A Water 1000 m, 160-mm diameter 1600 m, 200-mm diameter 850 m, 180-mm diameter Water
A tanker carrying tolueneis unloaded to an onshore storage tank using the ship’s pumps. The pipeline is 225-mm inside diameter and 900-m long (200-m long suction line, 700-m long discharged line). Miscellaneous losses due to fittings, valves, etc., amount to 100 equivalent pipe diameters at the suction side, and 500 equivalent pipe diameters at the discharged side. The maximum liquid level in the destination storage tank is 30 m above the lowest liquid level in the ship’s tanks. The ship’s tanks are nitrogen blanketed and maintained at an absolute pressure of 1.05 bar (1 bar = 105 Pa). The storage tank has a floating roof, which exerts an absolute pressure of 1.1 bar on the liquid. The ship must unload 1000 metric tons within 5 hours. Taking pump efficiency as 70%, (ρ = 874 kg/m3, μ = 0.62 cP, Pvapor = 0.037 atm absolute). Determine: A. Pump head (m) B. Pump differential pressure (Pa) C. Suction head (m) and pressure (Pa) D. Discharge head (m) and pressure (Pa) E. Actual pump power…
EB, Pump System. Water is extracted from a reservoir, pumped up and over an obstruction, and discharged at atmospheric pressure at a height of 2m above the reservoir level after passing thru a ½ closed gate value. The piping shown is made of commercial steel of total length 20m and has a constant pipe area A = 0.05m². If the flow rate is 0.5 m³/s, and the pump efficiency n=0.8, (a) compute the required input pump power (kW); (b) what is AP across the pump and across the exit valve? The pipe inlet is a reentrant configuration, and the elbows are flanged. Label your CV inlet-exit points clearly and list and tabulate the losses for each component clearly. Note: n = (power delivered to fluid)/(power input to pump). Ans OM: (a) ~10² kW; (b) APpump~10² kPa; APvalve~ -10² kPa H 2m ME 10m
Oil relative density (rd = 0.88) flows in an inclined pipe at a rate of 0.15 m/s as shown in Fig. If the differential reading in the mercury manometer is 915 mm, calculate the power that the pump supplies to the oil if head losses are negligible.
A horizontal pipe of diameter 0.2 m is suddenly enlarged to 0.3 m. If the rate of flow of water through the pipe is 0.2 m3/s and the intensity of pressure in the smaller pipe is 100 kPa, then find (i) the head loss due to sudden enlargement, (ii) power loss due to enlargement and (iii) intensity of pressure in the larger diameter pipe.
Water (15 C) is transported from an open reservoir to the atmosphere through a new cast iron pipe (d = 4 in). At the end of the pipe there is a fully open gate valve. Evaluate the maximum flow rate (gal / min) through the pipe.
Air flows steadily from a tank pressurized to 3kPa through a pipe of diameter D = 0.03 m and finally discharges to the atmosphere through a nozzle of diameter 0.01m. If the specific weight of air is 12 N/m^3 the air flow rate is?
Q5. Two pipes of diameters 400 mm, and 200 mm and lengths 300 m, and 150 m respectively are connected in series (Fig. 5). The difference in water surface levels in two tanks is 12 m. if the friction factors (f¡ and f2) are 0-03, and 0-034 respectively. Considering the minor losses, determine the rate of flow of water. H Pipe 1 Pipe 2 Fig. 5
please answer asapWater flows downwards in a vertical pipeline of gradually varying section from point 1 to point 2, which is 1.5m above point 1, at the rate of 0.9m^3/s. At section 1 the pipe diameter is 0.5m and pressure is 800 kPa. If pressure at section 2 is 600 kPa, determine the pipe diameter at that location. Neglect losses
A 2-inch diameter hose is conveying water at a flow rate of 20 gpm from point A to point B. The pressure at point A is 40 psi. The elevation at point A is 20 ft above mean sea level (MSL) and the elevation at point B is 18.5 ft above MSL. The hose is 100 ft long. Determine (a) pressure at point B if there is no head loss, (b) pressure at point B if head loss is 1 inch per foot of pipe length. (c) Compare pressure at B with and without headloss - what impact does head loss have?

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