Water at 20°C is pumped at a rate of 15 L/s into a reservoir as shown in the Figure below. Between the pump and the reservoir is 150 m of 100 mm diameter PVC pipe, and the water surface elevation in the reservoir is 8 m above the centerline of the inflow pipe. The roughness height of the PVC pipe can be assumed to be negligibly small. Estimate the gauge pressure (kPa) on the downstream side of the pump. Pump 15 L/s-> P -150 m 100 mm Reservoir 8m
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- Situation XX: In the figure shown, z, = 4 m, length of pipe from the reservoir to the pump is 120 %3D m, from the pump to the nozzle is 1000 m. The diameters of pipes are 0.60 and 0.45 m respectively. The gage pressure at B (the suction side of the pump) is -64 KPa. Neglect minor losses. В C P. 0.45 m diam. LCD = 1000 m %3D Zp = 4 m f = 0.02 0.60 m diam. LAB = 120 m f = 0.02 %3D 52. Compute the velocity of water in pipe AB. a. 2.297 m/s b. 1.452 m/s c. 3.147 m/s d. 2.672 m/s 53. Compute the velocity of water in pipe CD. a. 1.23 m/s b. 4.08 m/s c. 3.56 m/s d. 5.59 m/s 54. Compute the discharge of the pipe from A to B due to pumping. a. 0.65 m3/s b. 0.45 m3/s c. 0.89 m³/s d. 0.25 m3/s 60 m, f= 0.02 m and loss of head ithShow the necessary figures (if applicable) 2.3) A pipe discharges 142 lps of water into a reservoir at a point 1.85 m below the water surface. At point A the diameter is 25.4 cm and the center of the pipe is 1.25 m above the water surface. At the discharge end the pipe is 30.5 cm.If the head loss from A to the reservoir is 0.7 m, determine the pressure in A.A conduit is carrying oil ( S = 0.75 ) and its absolute viscosity is 0.25 kg / m-s. If the flow rate is 0.45 cu.m/s Determine the following • The entrance length • The length of the inviscid cone • The length of the profile development given the following situations 1. Circular pipe 800mm 2. rectangular pipe (Width = 800mm, Depth 1200mm)
- A certain part of cast iron piping of a water distribution system involves a parallel section. Both parallel pipes have a diameter of 30 cm, and the flow is fully turbulent. One of the branches (pipe A) is 1500 m long while the other branch (pipe B) is 2500 m long. If the flow rate through pipe A is 0.4 m/s, determine the flow rate through pipe B. Assume the flow is fully rough, thus the friction factor is independent of Reynolds number. I 0.4 m/s 30 cm 1500 m A В 30 cm 2500 m4. Piezometric tubes are tapped into a pipe section as shown in the figure below. The liquid is incompressible and flowing at a volumetric flowrate of 0.35 m³ s-¹. The piezometric head is 1 m at the upstream location (1) and 0.5 m at the throat (2). The pipe diameter at the upstream location (1) is 0.5 m. Answer the following: 1 m Flow Streamline- 0.5 m Datum Hint: the piezometric head is the sum of the elevation and pressure heads. (a) Find the velocity in the upstream section. (b) Find the velocity in the throat section. (c) Find the diameter in the throat section. (d) Based on your findings in (a) and (b), qualitatively describe how pressure and velocity are related along the streamline.Problem 8: EGL and HGL (IV) Consider a storage reservoir with a water surface elevation of 270 m. It is connected to a closed conduit (i.e., a pipe) that carries water down to a turbine at elevation 60 m. The friction head loss in the conduit is 20 m. Part A At point D, what are the pressure head P/y, the elevation head z, and the HGL? Part B Copy the diagram below. If the conduit is a closed pipe flowing full, is the velocity head V²/(2g) constant D→E? Answer yes or no, then sketch the EGL above the pipe D-E. Use a solid line. D E z = 270 m T Part C Based on your answer to Part B, sketch the HGL from D-E. Use a dashed line. z = 270 m Part D Now assume the conduit is an open channel. Copy the diagram below. Is the velocity head V²/(2g) constant D→E? Answer yes or no, then sketch the EGL above the pipe D→E. Use a solid line. E D z = 60 m T z = 60 m Part E Based on your answer to Part D, sketch the HGL from D-E. Use a dashed line.
- Q1 Glycerine (u = 150 Pa.s and p 1260 kg/m³) flows at a velocity of 5.0 m/s in a 10 cm diameter pipe. Estimate: (a) the boundary shear stress in the pipe due to the flow (b) Head loss in a length of 12 m of pipe and (c) Power expended by the flow in a distance of 12 m.Problem-4, A pipe of 0.7 m diameter has a length of 6 km and connects two reservoirs A and B. The water level in reservoir A is at an elevation 30 m above the water level in reservoir B. Halfway along the pipe line, there is a branch through which water can be supplied to a third reservoir C. The friction factor of the pipe is 0.024. The quantity of water discharged into reservoir C is 0.15 m³/s. Considering the acceleration due to gravity as 9.81 m/s² and neglecting minor losses, the discharge (in m³/s) into the reservoir B isWater backs up behind a concrete dam as shown in the Figure. Leakage under thefoundation gives a pressure distribution under the dam as indicated. If the water depth, h, is toogreat, the dam will topple over about its toe (Point A). The width of the dam is L and the heightof the dam is hd. Specific weight of the concrete is γc, the specific weight of the water is γw.Base your solution on a unit length of the dam. Sketch the free body diagram. Write the solutionprocedure step by step to determine the maximum water depth (h) in order not to cause anyoverturning about point A
- Figure Q1 shows an internal piping system of a building. The pipe is uPVC of total length 35 m. The minor loss coefficients are as shown in the figure. The flow velocity in the pipe is designed to be 1.0 m/s and the residual pressure head at appliance X must be at least 0.8m. Determine the required pipe diameter using Darcy Weisbach formula. Level 8.5 m k = 0.8 Water tank IT Roof beam Minor loss coefficients: E Stop valve, k = 10 O 90°elbow, k = 1 Level 4 m Figure Q1A 300 mm cast-iron pipe is discharge 120 lit/sec. At a point 200 m from the reservoir the center of the pipe is 30 m below the reservoir surface. What is the pressure in kPa to be exerted there? Assume f= 0.02CORRECT LETTER PLS 1. In a system with 4 reservoirs and 1 pipe junctions, how many hydraulic headloss equations are formulate? A. 3B. 2C. 1D. 4E. 5 2. In turbulent flow, which is correct?BJ: higher Re value has lower friction factorJB: lower Re value has lower friction factorGroup of answer choices A. BJ is true and JB is false B. BJ is true and JB is true C. BJ is false and JB is false D. BJ is false and JB is true 3.which of the following is always the same for horizontal closed conduit? A. Total headB. Velocity headC. Elevation headD. Pressure head