Water is supplied at 150 ft³/s and 70 psi to a hydraulic turbine through a 3-ft inside-diameter inlet pipe as indicated in the figure below.The turbine discharge pipe has a 4.8-ft inside diameter. The static pressure at section (2), 10 ft below the turbine inlet, is 10 in. Hgvacuum. If the turbine develops 2400 hp, determine the rate of loss of available energy between sections (1) and (2).Section (1)P₁ =70psiQ=150ft³/sD₁ = 3 ft10 ftTurbinepower loss =iP₂ = 10 in. HgvacuumD₂ =4.8ftSection (2)dehp

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Answered: Water is supplied at 150 ft³/s and 70…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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2500kW power is generated shown in the Figure with a water flowrate of 20 m3/s. The head loss for the entire flow is 2.5m. (a) Find the pressure difference P1 - P2 across the turbine. (b) Find h You can neglect the head loss between point 1 and 2.
Water from a reservoir is pumped over a hill through a 450 mm diameter and an absolute pressure of 1.0 kg/cm2 is maintained at the summit. Water discharge is 30 m above the reservoir. The quantity pumped is 0.5 m3/s. Frictional losses in the discharge and suction pipe, and pump is equivalent to 1.5 m. The speed of pump is 800 rpm. Determine the following: a.Water power of the pump b.New value of discharge if the speed of the pump is increased to 1000 rpm c.New value of head if the speed of the pump is increased to 1000 rpm d.New value of power if the speed of the pump is increased to 1000 rpm Please solving using the methodology (Given, requires, schematic diagram, solution and discussion)
Water is to be moved from one large reservoir to another at a higher elevation as indicated in the figure below. The loss in available energy associated with 6.2 ft³/s being pumped from sections (1) to (2) is 61V²/2 ft²/s², where Vis the average velocity of water in the 8-in. inside-diameter piping involved. Determine the amount of shaft power required. Assume z = 56 ft. W shaft i 281.988 Section (1) be hp 8-in. inside- diameter pipe Pump Section (2)
Oil with a specific gravity of 0.86 is Pz= 43 psi being pumped from a reservoir as shown in the figure below. The 3 ft Pump pressures at points 1 and 2 are -4.0 psi and 43.0 psi, respectively. The flow rate in the pipe is 0.50 ft3 /s. The pump is rated at 8 hp. Determine the NPSH. Neglect frictional losses in the system.
In the figure shown below there are 125 ft of 2-in pipe, 75 ft of 6-in pipe, and 150 ft of 3-in pipe, all cast iron. There are two 90° elbows and an open globe valve, all flanged. If the exit elevation is zero and the elevation at A is 100 ft, what horsepower is extracted by the turbine when the flow rate is 0.16 ft³/s of water at 20 °C? For water at 20 °C, take p = 1.937 slug/ft3 and u = 2.09E-5 slug/ft.s. For cast iron, E = 0.00085 ft. For Re = 113500, 37800, and 75600, take f= 0.0314, 0.0266, and 0.0287 respectively. 2 in 6 in Open globe Turbine 3 in The minor loss coefficients are as follows: sharp 2" entrance: K = 0.5; two 2 90° elbows: K = 2(0.39) 2" sudden expansion: K = 0.79; 3" open globe valve: K = 8.5
In the figure shown below there are 125 ft of 2-in pipe, 75 ft of 6-in pipe, and 150 ft of 3-in pipe, all cast iron. There are two 90° elbows and an open globe valve, all flanged. If the exit elevation is zero and the elevation at A is 100 ft, what horsepower is extracted by the turbine when the flow rate is 0.16 ft³/s of water at 20 °C? For water at 20 °C, take p = 1.937 slug/ft³ and µ = 2.09E-5 slug/ft.s. For cast iron, & = 0.00085 ft. For Re = 113500, 37800, and 75600, take f≈ 0.0314, 0.0266, and 0.0287 respectively. 2 in 6 in Turbine Open globe 3 in The minor loss coefficients are as follows: sharp 2" entrance: K = 0.5; two 2" 90° elbows: K = 2(0.39) 2" sudden expansion: K = 0.79; 3" open globe valve: K = 8.5 The power extracted from the turbine is hp.
1. Determine the power delivered by the pump in kW 2. Determine the pressure head at point 2 in meters. 3. Determine the pressure head at point 1 in meters Thanks
Q2/ A pump delivers water from a tank A (water surface elevation = 110 m) to tank B (water surface elevation = 170 m) as shown in figure below. The suction pipe is 45 m long ( = 0.024) and 35 cm in diameter. The delivery pipe is 950 m long (f = 0.022) and 25 cm in diameter. The head discharge relationship for the pump is given by H, = (90 – 8000 Q*), where H, in m and Q in m³/s. Calculate the discharge in the pipeline and the power delivered by the pump. Delivery pipe. elevation 170 m Suction pipe, elevation- 110 m Good Luck Rasha H. Salman
A water pump is used to pump the water to a large water tank as shown in Figure. The free surfaces of both water tanks are under atmospheric pressure. Dimensions and local losses are given below. The flow rate of the pump is determined as 16.2 L/min. Calculate the required manometric head of the pump and the required motor power if the total efficiency is 76.2 percent. The water at 10oC. density r = 996.2 kg/m3, dynamic viscosity µ = 1.362x10-3kg /ms. z2-z1 = 7.62 m (height difference), D = 2.62 cm (pipe diameter), L = 176.2 m (total pipe length), ɛ = 0.2562 mm (pipe roughness value) Local loss coefficients: KL,inlet = 0.562 (pipe inlet) KL,valve = 16.2 (valve), KL,elbow = 0.9262 (there are 5 elbows totally in pipe line), KL,outlet = 1.0562 (pipe outlet).
A pump is required to transfer water at the rate of 350 kg/s from an open sump to an open storage tank located 30m above the pump. The sucLon pipe is 350mm in diameter and 12m in length and the delivery pipe is 550mm in diameter and 40m in length. Calculate:(a) The maximum height at which the pump may be placed above the sump, so that pressure at the inlet is not less than -80 kPa (gauge) (b) the energy to be supplied by the pump per unit mass of water transferred (c) The input power required by the pump, which is 60 % efficient
3. Water from an open reservoir A at 8m elevation is drawn by a motor-driven pump to an open reservoir B 70m elevation. The inside diameter of the suction. The inside diameter of the suction pipe is 200 mm and 150 mm for the discharge pipe. The suction line has a head loss 3 times that of the suction velocity head. The discharge line has a loss of head twenty times that of the velocity head of the discharge pipeline. The pump centreline is at 4m for a discharge rate of 10 Liters/sec. Find the Total Dynamic Head?

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