Use Kirschmer's equation to find the head loss through a rectangular bar screen used in treatment plant, if the bar width is 15 mm and spacing is 25 mm. Assume that the width of channel (w) equal two times of water depth. Use Q = 0.6 m/s, approach velocity = 0.6 m/s and theta = 60°. %3D
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- A pipe has a length of 213 m., and a diameter of 0.46 m. The coefficient of rouaness is C = 171, and the headloss is 17 m. Determine the discharge (L/s) inside the pipe.1. A 1 meter diameter pipe 1400 m long has a discharge of 600 liters/ sec a. Compute the head loss using f = 0.018 b. Compute the head loss using n = 0.015 c. Compute the head loss using C = 100 %3D %3D %3DTwo tanks A and B have 80 m diffenence in water levels, and are connected by a pipe 0.3 m diameter and 8 km long with 0.002 friction coefficient. The pipe is tapped at its mid point to leak out 35 1/s flow rate. Determine the leaving tank А? discharge Find the discharge entering tank B? Coefficient (Tank Exit) = 0.5 %3D Coefficient (Tank Entry) = 1 %3D ha %3D A he 80 m Q1
- 1. A Venturi tube, as shown in the figure, is used to measure the flow of kerosene runoff (d = 0.85). Determine: a. The pressure values at point 1 and the height in the piezometer h1 being known, calculate the net flow (Q) and the mass flow (8) b. Considering that the flow is invisible (that is, considering the absence of loss of energy), determine the static pressure at point 2; c. The height of mercury (h2) on the manometer connected between points 1 and 2. Data: dнg — 13,6; р, %3D16 kPа; D, 3 0,250 m; D2 = 0,200 m; hị = 2,9 m. ....g.. hi kerosene h2 t HgYou are in charge of evaluating a segment of aqueduct pipe (diameter: 30cm). You know that pt. A has a measured pressured of 500 kPa. You must : a) Determine the head-loss between points A and B if they are separated by 100m, that the pipe has a flow of 175 1/s and that the Hazen-Williams coefficient is 100 (see figure 3) b) Calculate the absolute roughness (&). Presume that the water temperature is 15oC. A A Figure 3 Aqueduct pipe c) We wish to limit head-loss to 10 kPa, all the while transporting the same flow between points A and B. To do this, it has been suggested that a second pipe could connect these two points (see figure 4). You must determine this second pipe's diameter knowing that the total length of this secondary pipe is 135m and has the same Manning coefficient as the first pipe. Neglect all local head-loss B Figure 4 Proposed secondary pipe (dotted line) BThe flow rate in a 300 mm diameter pipe is 0.226 m³/s. The flow is known to be turbulent and the centerline velocity is 3.66 m/s. The density of liquid flowing is 900 kg/m³. 850 - Determine the friction factor. c) 0.03411 d) 0.04158 a) 0.02655 b) 0.01168 Determine the head loss per meter length of pipe. a) 0.08 m. b) 0.06 m. - c) 0.02 m. d) 0.04 m. Determine the shearing stress at the walls of the pipe. a) 12.71 N/m2 c) 14.57 N/m² b) 17.54 N/m2 d) 16.47 N/m²
- 3.2. A water (Temperature = 20 °C) is flowing in a commercial steel pipe at a flowrate of 5 m³/s. The diameter and length of the pipes are 50 cm and 500 m, respectively. Assume absolute roughness (ɛ) = 0.05 mm. Calculate the head loss by using: (a) Darcy-Weisbach equation (b) Manning's equation (use n = 0.017)Question: In the water network shown in figure,the Hazen-Williams coefficient C for all pipes is 100. a) Using the Hardy Cross method, determine the flow in each pipe to the nearest 20 gprn. b) Find the residual pressures at points B and C, given that the pressure at point Aee is 50 psi. C) If the flow input A is doubled,what would be the residual pressure at C? Elevation 1,600 gpm A A 100 ft B 150 ft C 140 ft 1,500 ft 8 in 500 ft 10 in B 1,000 ft 10 in 1,000 gpm 600 gpmQuestion 4 Water flows upwards in a vertical (plane) pipe line of gradually varying cross section from point 1 to point 2, which is 1.5 m above point 1, at the rate of 0.9 m³/s. At section 1 the pipe dia is 0.5 m and pressure is 800 kpa. If pressure at section 2 is 600 kpa determine the pipe diameter at that location. (neglect the losses) tt thele loloses)
- asnwer asan with neat solution thank youGiven the figure below, (a) determine the flow rate in the siphon shown. Diameter of the pipe is 2.5cm.(b) Determine the pressure at point B.A pitot-static tube placed in the centre of a 300 mm pipe line has one orifice point- ing upstream and other perpendicular to it. The mean velocity in the pipe is 0.80 of the central velocity. Find the discharge through the pipe if the pressure difference between the two orifices is 60 mm of water. Take the co-efficient of pitot tube as C = 0.98.absolute roughness is o.03mm (for both sections), Determine the height H. Neglect local losses. Tip: Losses in pipes connected one after another (as in the figure) they add up 2. Consider the system shown. If the flow is Q = 220 lts / s and the H L=500 m D=45 cm L=800 m D=30 cm