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- Water is to be pumped through 1500 ft of pipe from the lower to upper reservoir at a rate of 4 ft'/s, as shown in Figure below. The pipe is cast iron of diameter 8 inch. The pump is 80% efficient. (a) Find the velocity and Reynolds number of flow through pipe. (b) Find the head loss due to friction, hf in ft. (c) Compute the pump head, h, in ft and the pump power needed, Ppump in horse power (hp). Given: Density of water, pwater= 1.94 slug/ft'; Viscosity of water, u = 2.05 × 10° slug/ft.s; Friction factor from Moody Chart, f= 0.021. Draw sketch and show all calculations. 180 ft L = 1500 ft, D = 8 in Pumparrow_forwardWater is to be pumped through 1500 ft of pipe from the lower to upper reservoir at a rate of 4 ft'/s, as shown in Figure below. The pipe is cast iron of diameter 8 inch. The pump is 80% efficient. (a) Find the velocity and Reynolds number of flow through pipe. (b) Find the head loss due to friction, h in ft. (c) Compute the pump head, h, in ft and the pump power needed, Ppump in horse power (hp). Given: Density of water, pwater = 1.94 slug/ft'; Viscosity of water, u = 2.05 x 10° slug/ft.s; Friction factor from Moody Chart, f= 0.021. Draw sketch and show all calculations. 180 ft L-1500 ft, D-8 in Pumparrow_forwardQ1) Oil of specific gravity s.g = 0.8 is drawn into the pump, the pressure at A is -20 kpa and at B is 100 kpa. Calculate the power input of the pump if the discharge at B is 0.07 m'/s and the pipe diameter is 80 mm and h = 2.5 m as shown in Fig.1. Neglect friction losses. Take the efficiency of the pump 0.85 Fig.1arrow_forward
- The reservoir tank shown contains fresh water air pressurized to 200 kPa. There is a loss of 3.3 N*m/N due to friction in the pipes. Point 1 is located at the surface of the water and point 2 is in the free stream of the exit spray. The Distance from the water surface to the free stream is 3 meters. The flowrate for the system is .05 m^3/s (Work on paper required) 1. How much energy is provided to the motor by the flowing water? 2. Assuming the motor has an efficiency rating of 83%, how much power is output? Ar Pressure o water DN 50sch 40 motor r coo ON 80 sch 40arrow_forwardUse figure below Question : Water at 20 C is to be pumped through 2300 ft of pipe from reservoir 1 to 2 at a rate of 2.5 ft3/s, as shown in the figure. If the pipe is galvanized iron of diameter 7 in and the pump is 75% efficient, what horsepower pump is needed? Neglect minor losses. HINT : pumped through 2300 ft of pipe from reservoir 1 to 2 at a rate of 2.5 ft3/s, & galvanized iron of diameter 7arrow_forwardA pump at an elevation of 300m is pumping 0.05 m³/s of water through 2.4 km of 150-mm pipe to a reservoir whose level is at an elevation of 380m. What pressure will be found in the pipe at a point where the elevation is 335m above the datum and the distance (measured along the pipe) from the pipe is 970m? Compute the capacity of the pump. Use E/D= 1.5384x10-³arrow_forward
- Water is pumped thru a vertical 50mm new galvanized-iron pipe to an elevated tank on the roof of a building.The pressure on the discharge side of the pump is 1400kpa. What pressure can be expected at a point in the pipe 75mm above the pump when the flow is 9 liters/sec?arrow_forwardA centrifugal pump delivers water at a rate of 0.03 m /sec to a height of 18 meters through a pipe of 100 mm dlameter and 90 m long. If the overall efficiency of the pump is 75 %, find the power required to drive t e pump. (Take f 0.012).arrow_forwardA reservoir has a depth of 20 ft. A pipe at the base of the reservoir needs to convey discharge of 2 cfs at 60°F. Find the diameter of the pipe. Assume no losses due to frictionarrow_forward
- Question 4: Calculate the velocity in the pipe shown below, which connects the two reservoirs. Consider the minor headlosses 20 m -5 m Butterfly Valve CH = 140 4 inch Diameter 120 m Lengtharrow_forward1. 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 Waterarrow_forward1. A siphon has an uniform circular section of 70 mm diameter and consists of a bent pipe with its crest 1.6 m above the water level as shown in figure. The siphon discharges into the atmosphere at a level 3.0 m below the water level. Calculate the velocity of flow and the discharge. The absolute pressure at the end of the siphon is equivalent to 10 m head of water. Calculate the absolute pressure at the crest. Neglect all losses. 1.6 m 3.0 marrow_forward
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