Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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QI/ Water flows from the reservoir on the left to the reservoir on the right at a rate of 0.45 ms. The formula for - Ekevation? the head losses in the pipes is h - 0.02 L: D 2g What elevation in the left reservoir is required to produce this flow? Also carefully sketch the HGL and the EGL for the system. Note: Assume the head-loss formula can be used for the smaller pipe as wel as for the Elevation 34 m 80 m 90 m D, =0.344 m A, -0.1 m D,= 0.486 m A- 02 m larger pipe. Q2/ A horizontal pipe carries cooling water at 10°C for a thermal power plant. what is the pressure in the pipe at L= 2000 m? The head loss in the pipe is 0.02(L/D)V + Eerhm- 0n -D02m 28 Detn where Lis the length of the pipe from the reservoir to the point in question, V is the mean velocity in the pipe, and Elvation =m L-2000m (2. Dis the diameter of the pipe. The pipe diameter is 20 cm and the rate of flow is 0.06 mls, Q3/ For the parallel-pipe system of L-250 D-3 in Fig. each pipe is cast iron, and the pressure drop p - P:- 3 Ibf/in", Compute the total flow rate between I and 2 if the fluid is SAE 10 oil at 20°C. - 0-2in L-200 Q4/ In Fig. all pipes are 8-cm-diameter cast iron. Determine the flow rate from reservoir (1) if valve Cis (a) closed; and (b) open, with Kyave -0.5. Oz-25 m IZ-0m Waker 10m 20C L-50m L- 100 m L 0m Valve" Q5/ For the piping system of Fig. all pipes are concrete with a roughness of 0.04 inch. Neglecting minor losses, compute the overall pressure drop pi - P2 in Ibf/in". The flow rate is 20 ft'/s of water Din D12 ie D12 i at 20°C. L-1000n D=15 in L 1200 For water at 20°C, take p = 1.94 slug/ft' and - 2.09E-5 slug/ft-s. Q6/ A, B and C three reservoirs have water levels are 300, 250 and 200 m as shown in figure, find the discharge flow in pipes AJ, JB and JC. Take f = 0035 for all pipes. Pipes lengths and diameters are Pipe A 20 Km, 300 mm, Pipe B 10 Km, 220 mm and pipe C7 Km, 200 mm respectively. Also, Za, Zb and Ze are 300, 250 and 180. B
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Transcribed Image Text:QI/ Water flows from the reservoir on the left to the reservoir on the right at a rate of 0.45 ms. The formula for - Ekevation? the head losses in the pipes is h - 0.02 L: D 2g What elevation in the left reservoir is required to produce this flow? Also carefully sketch the HGL and the EGL for the system. Note: Assume the head-loss formula can be used for the smaller pipe as wel as for the Elevation 34 m 80 m 90 m D, =0.344 m A, -0.1 m D,= 0.486 m A- 02 m larger pipe. Q2/ A horizontal pipe carries cooling water at 10°C for a thermal power plant. what is the pressure in the pipe at L= 2000 m? The head loss in the pipe is 0.02(L/D)V + Eerhm- 0n -D02m 28 Detn where Lis the length of the pipe from the reservoir to the point in question, V is the mean velocity in the pipe, and Elvation =m L-2000m (2. Dis the diameter of the pipe. The pipe diameter is 20 cm and the rate of flow is 0.06 mls, Q3/ For the parallel-pipe system of L-250 D-3 in Fig. each pipe is cast iron, and the pressure drop p - P:- 3 Ibf/in", Compute the total flow rate between I and 2 if the fluid is SAE 10 oil at 20°C. - 0-2in L-200 Q4/ In Fig. all pipes are 8-cm-diameter cast iron. Determine the flow rate from reservoir (1) if valve Cis (a) closed; and (b) open, with Kyave -0.5. Oz-25 m IZ-0m Waker 10m 20C L-50m L- 100 m L 0m Valve" Q5/ For the piping system of Fig. all pipes are concrete with a roughness of 0.04 inch. Neglecting minor losses, compute the overall pressure drop pi - P2 in Ibf/in". The flow rate is 20 ft'/s of water Din D12 ie D12 i at 20°C. L-1000n D=15 in L 1200 For water at 20°C, take p = 1.94 slug/ft' and - 2.09E-5 slug/ft-s. Q6/ A, B and C three reservoirs have water levels are 300, 250 and 200 m as shown in figure, find the discharge flow in pipes AJ, JB and JC. Take f = 0035 for all pipes. Pipes lengths and diameters are Pipe A 20 Km, 300 mm, Pipe B 10 Km, 220 mm and pipe C7 Km, 200 mm respectively. Also, Za, Zb and Ze are 300, 250 and 180. B
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