Q2/ Three pipes are connected in parallel as shown in Fig. No. (2). Pressure head at junction A is 70 (m column of water) and at junction B is 46 (m column of water). For all pipes f = 0.02 and hy is neglected. All pipes are located at the same horizontal level. 1- Find the flow rate of water through each pipe (Q₁, Q2 and Q3). 2- Find flow rate of water enters junction A and flow rate of water enters junction B. QA A pipe No.(1) pipe No.(2) pipe No.(3) Q1 Q2 Q3 B QB Fig. 3 Pipe L (m) NO. 1 3000 2 1300 200 3 2600 250 d (mm) 300

Q2/ Three pipes are connected in parallel as shown in Fig. No. (2). Pressure head at junction A is 70 (m column of water) and at junction B is 46 (m column of water). For all pipes f = 0.02 and hy is neglected. All pipes are located at the same horizontal level. 1- Find the flow rate of water through each pipe (Q₁, Q2 and Q3). 2- Find flow rate of water enters junction A and flow rate of water enters junction B. QA A pipe No.(1) pipe No.(2) pipe No.(3) Q1 Q2 Q3 B QB Fig. 3 Pipe L (m) NO. 1 3000 2 1300 200 3 2600 250 d (mm) 300

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

2. Water flow from A to E through the pipe shown. It is known that the flow in pipe 4 is 450 L/s, and that the pressure head (headloss) at pipe 1 is 62 m. Assuming that f = 0.022 for all pipes and that all the pipes are level, determine the total flow from pipe 1 to pipe 6 and the pressure heads (headloss) at pipe 2, 3, 4, 5, and 6 Q₁Q4+Q₂+Q³ Qs = Q3 + Q₂ Q6=Qs+Q4 hf=hf₁ + hf3 + hfs + hf6 hf4= hf3+ hfs 400 mm 300 m 250 mm 360 m 200 mm 600 m 300 mm 1200 m 350 mm 300 m 450 mm 600 m hf3= hf₂ Q₁ = 1.0792 m³/s = Qr, hf₁ = 181.72, hf₂ = 127.2935 m, hfs=127.2935 m, hfs = 54.4265 m, hf = 6.2709 m
1. Water flows through Pipe A and into parallel pipes 1,2 and 3, and out through Pipe B. The properties of the pipes are listed as follows: Pipe Length (m) Diameter (cm) 30 Friction Coefficient, f A 1 300 10 0.020 240 600 2 15 0.018 3 20 0.017 В 30 The upstream junction (near A) has an elevation of 90m with a pressure of 205 KPa; the downstream junction is at elevation 30 m. If the average velocity in Pipe A is 3.0 m/s, find the pressure at the downstream junctions and rate of flow in each pipe. Also, draw the pipe system.
(Flow through Single Pipes). Determine the flow in each pipe and the pressure at the junction node, D. Assume elevation at Node, D to be 328 feet and friction factor, f, of 0.02 for all pipes. [NOTE: This is a three-part problem]. A B Elevation (ft) Length (ft) 19,680 Diameter (ft) Reservoir Pipe Part A) A 656 AD 3.28 В 590 BD 13,120 2.5 558 CD 29,520 2.5 19,680 13,120 Part B) A 656 AD 3.28 В 574 BD 3.28 CD 29,520 19,680 19,680 492 2.5 Part C) A 656 AD 3.28 В 590 BD 3.28 492 CD 19,680 3.28
Water flows from a to e through the pipe system shown in the figure. It is known that the flow in pipe bfgc is 50 liters per sec. (a) Assuming that C1 = 120 for all the pipes, determine the total flow from a to e. (b) Assuming that all the pipes are level and that the pressure head at a is 80 m, determine the pressure head at point d.
4.5.4. If the pressure difference between points 1 and 2 in Figure P4.5.4 is 25 psi. What will be the flowrate? The pipes are galvanized iron with k, = 0.0005 ft. Take v = 1.06 x 10* ft/s and neglect minor losses. 2000 ft, 8 in dia 10 in dia 2. B 1600 ft, 6 in dia e 800 ft, 10 in dia- Figure P4.5.4
The diameter of a pipe changes gradually from 6 inches at A to 18 inches at B. A is 15 ft lower than B. If the pressure at A is 10 lbs per square inch and at B, 7 lbs per square inch when there are 5.0 cubic ft per second flowing, determine: a. the direction of flow. b. the frictional loss between the two points B. If in Problem 1 the direction of flow is reversed, determine the pressure at A if all other factors, including the frictional loss, remain the same. C. In Problem 1, determine the diameter of pipe at B in order that the pressure at that point will also be 10 lbs per square inch, all other factors remaining constant. D. Determine the discharge in Problem 1, assuming no frictional loss, all other conditions remaining as stated. E. What would be the difference in pressure in pounds per square inch between A and B, Problem 1, if there were 6.2 cubic ft per second flowing, neglecting friction.
2. The pipe network shown has the following properties: Lı=500m, Dı= 250mm; L2=600m, D2=150mm; L3=670m; L=800m, D=300mm. The flow in line 1 is 0.06m/s and the total head lost from A to D is 9 meters. Assume Ci=120 for all pipes. Pipe 2 Pipe 1 Pipe 4 Pipe 3 a. What is the head lost in pipe 2 in meters? b. What is the flow in pipe 2? c. What is the diameter in pipe 3?
Figure Q4 shows there are two sections of pipes in the system, which are 38m long of 5 cm diameter pipe in section 1 and 45 m long of 15 cm diameter pipe in section 2. The friction factor of pipe in section 1 and 2 are 0.005 and 0.003 respectively. The entrance of the pipe is sharp and the change of section at point C is sudden. There are two 90-degree elbows and an open globe valve in the system. The fitting loss coefficient, k are 0.9 for each 90-degree elbow and 0.25 for open globe valve. If the exit elevation is zero and the flow rate of water is 0.005 m/s. i. Name all the losses in the system with the formula involved, Calculate the total losses in the system, Calculate the power extracted by the turbine if the turbine is 75 ii. iii. percent efficient. 30m Elevation Pipe section 1: 5cm diameter with 38 m long Орen globe Turbine Elevation Om Pipe section 2: 15cm diameter with 45 m long
What is pipe roughness? A pump is located 5 m above the surface = 8170 M/m¹) in a closed tank. The pressure in the space above liquid surface is 35 Kpa. The suction line to the pump is 15 m of 15 cm diameter pipe (/= 0.025). The discharge from the pump is 60 m of 20 cm diameter pipe (/= 0.03). The pipe discharges in a submerged fashion to an open tank whose free liquid surface is 3 m lower than the liquid surface in the pressure tank. If pump puts 1.5 kW Into the liquid, determine the flow rate and the pressure in the pipe on the suction side of the pump. Assume turbulent flow.
Determine the flow rate of water (10°C) that will cause a pressure drop of 17,250 N/m2 in 350 m of horizontal, cast-iron pipe (D = 60 cm). Ignore minor losses. (ɛ = 0.26 mm; n= 0.011; Ch =130) Compare results using: (a) Darcy-Weisbach Equation (b) Hazen-Williams Equation (c) Manning Equation
Q-3. Water at 10 °C flows from a large reservoir to a smaller one though a 5-cm diameter cast iron piping system as shown in the figure below. Determine the elevation z₁ for a flow rate of 6 liters/second. 2₁ = ? O Sharp-edged entrance, K₁ = 0.5 D = 5 cm 9 m -Control volume boundary Standard elbow, flanged, K₂ = 0.3 Gate valve, fully open K₁=0.2- 2₂ = 4 m 80 m Data: The density and dynamic viscosity of water at 10 °C are: p=999.7 kg/m³ and μ = 1.307x10³ kg/m.s. The roughness of cast iron pipe, & = 0.00026 m. -Exit, K₁= 1.06
Prob.13. Two pipes of length 2500 m each and diameters of 80 cm and 60 cm respectively, are connected in parallel. The friction factor for each pipe is 4f = 0.024. Total flow is equal to 250 ltr/s. Find the discharge in each pipe.