Problem 3. A pump is installed in a 250-m-long pipeline to raise water (v = 1 x 10-6 m²/s)55 m from a reservoir to an elevated tank. The pipe is ductile iron with a diameter of 80cm and a flow rate of 2.19 m³/s. The pump is placed outside the supply reservoir with acenterline elevation of 1.5 m below the reservoir water surface. Determine the maximumdistance, Lmax, in meters that the pump could be installed away from the supply reservoir(the allowable length of the suction line) without encountering cavitation problems. Therequired net-positive suction head is NPSH = 4.75 m and the water is at 30° C.Total minor losses for the entire pipeline are 17.8 times the velocity head, including exit loss.Minor losses in the suction line are 5.0 times the velocity head. Use an atmospheric pressureof 101.0 kPa.Lmax1.50 m80 cm diameterP

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Answered: Problem 3. A pump is installed in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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
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).
Question 5: The pump shown below delivers a head of 50 m to the water through 30 cm diameter with pipe length 500 m. If the head loss is given by determine. L V² 0.02 / 1. The flow rate (Q) through the system in m³/s 2. The input power (Pi) required to supply the pump if the efficiency=75% 2 40 m L w **** AVB
The distribution system requires to lift water to an area with an average elevation of 90 mamsl from the pumping station at 35 mamsl. The area has a demand requirement of 30 MLD and the minimum pressure head requirement is 20 m-head. The pipe which will serve the area is 500 mm with C-value of 90 and length of 3000 m. Determine the following: a) total head loss along the pipe in meter, b) the head of pump required in meter, and c) the power required by the pump with an efficiency of 80% in kilowatt. Note: Theaverage water surface level of the reservoir which supports the pumping station is 5 m.
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
Determine the NPSH available for the system shown. The pump takes water at 30 ° C. The system is installed at sea level. The pump is at 2 m above the water level. The pipe measures 6 m and the diameter of 5 cm. The tubing has a sharp edge entry and the elbow is 90 ° threaded. The flow that the pump moves is 90 liters per minute. The material of the tubing is galvanized iron.
4. Water (p = 1000 kg/m³) is transferred from a large lake to an open storage tank located at elevation as shown in the Figure 2 below at a flowrate of 90m³/hr. The losses through pipe and fittings (hL) is given as 8m. Determine the mechanical efficiency of the pump if the shaft power required is 12kW. State the assumptions made in your calculations. 30 m WaterLevel Pump Centre Figure 2 Tank
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Tank 1 Tank 2 g Question 1 Consider the flow of water (p= 10³ kg/m³, u = 10³ Pa-s) from tank 1 to tank 2. A centrifugal pump is installed in this piping system with length L = 300 m and diameter D = 40 cm cast-iron pipe. The water surface of tank 1 is 15 m higher than the water surface of tank 2. You may neglect minor losses but not major losses. The gravity cannot be neglected. Assume steady-state and no friction in the tanks. (a) Simplify the equation of the system curve Ap vs Q. Do not place numerical data. (b) Plot the system curve Ap vs Q (0 ≤Q≤2 m³/s). (c) Find the volumetric flow rate when the pump is not operating. (d) Find the power supplied to the water and to the pump if n = 0.9 and 1 m³/s. (e) Consider a pump: Ap = 106 105 Q², where Ap in Pa and Q in m³/s. Find the operating point. What is the minimum and maximum volumetric flow rate that this pump can deliver?
A pump is installed to deliver water from a reservoir of surface elevation zero, to another of elevation 290 ft. The 10 inch-diameter suction pipe (f=0.022) is 90 ft long and the 8-in-diameer discharge pipe (f=0.028) is 4900 ft long. The pump characteristic is defined by hp= 365-20Q2 where hp, the pump head, is in feet and Q is in cubic feet per second. What is the rate at which the pump will deliver the water?
Please answer the problem asap, thank you!
a pumping station working with a pump head of 25m. the output power of the motor for that pump is 16kw. identify the pump efficiency if the sewarge discharge velocity is 0.27 m/s and the pipe diameter is 250 mm

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