show all working out please Q2 Water is pumped from a large lake to a higher reservoir. The head loss of the piping system is given as 8.5 m. Themechanical efficiency of the pump is to be determined, given a pump that draws 15 kW of electrical power, and operatingsuch that the volumetric flow rate is 0.035 m³/s.b. Without calculating anything (major) - estimate the pressure (or head) difference across the pump, tell me why (yourreasoning). (assume the pump is located at the surface of the lake and it has it has negligible height).(due @ 1700) (Subphoto taking 20 mins for teek difficulties)Wwestion. 5 mins for=pump, unpump-motorwelectricгомn =WpumpWelectricaldetermine.LakeReservoirPump

a. See attached solutionb. The pressure at the inlet of the pump is zero since it is located at same…

Answered: Q2 Water is pumped from a large lake to…

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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An aqueduct is required to supply water to the community.Data: Families = 12 Average members per family = 3 people Breakfast, lunch and dinner = 15 total liters / family Showers = 10lt / person, one daily shower Kitchen wash = 13lts / day Total distance of the pipeline to the storage tank = 1200 meters Total height H from the pump point to delivery to the tank = 70 meters Determine: Estimation of the total volume of the recommended tank, an autonomy of at leas 2 days of storage. It is required to propose a pump that allows at least filling the tank between 5 to 12 hours operation, it must include details of the pump, as well as its curve Image: schematic detail of the proposed system
Q1. Two pumps with 105.4 cm in diameters characteristics shown in figure below are used in paralel to pump water to the system. Neglecting local losses, calculate total flow rate and pump power. (a) n= 710 d/dak 120 7.5 80m ENPY (2) 6. 105 - 105.4 cm çap S N 4.5 3 90 96.52 cm çap 88% 86% 75 - 88.9 cm çap S4% (1) bom 60 1100 kW 45 750 kW 30 0.25 0.50 0.75 1.00 1.25 1.50 1.75 Debi m/s Note: Pipe is cast iron with 0.6 m in diamater and 1.6 km in length. Fluid is water with density 1000 kg/m³ . ENPY m %68 900 kW
From a very large tank with an absolute pressure of 3 bar, the water is discharged to the atmosphere by means of 2 smooth pipes of 100 m length, 1 m and 50 m long, connected in series. The height difference between the water level in the tank and the outlet is 50m, and the diameters of the pipes are 50mm and 100mm, respectively. In addition, a 500kPa turbine is placed on the 2nd Pipe. a) Draw the system roughly, show the dimensions on it.b) Calculate the exit velocity of the water from the 2nd pipe, ignoring the local losses.
1. A pump 260mm suction pipe and a 150mm discharge pipe is used to deliver 58L/s of water. The suction gage reads 117 mm Hg vacuum and the discharge gage located 120 cm above the suction gage which reads 110 kPa gage. Determine: a. The total dynamic head (TDH) in meters 18.54 O 14.49 16.32 b. The pump efficiency in % if the power supplied by the motor is 15hp. 69.32 66.55 O 73.66
1.28. The performance curve for the fan of Problem 1.27 can be approx- imated by a straight line through its BEP (using techniques devel- oped in Chapter 7). The curve is Aps = 4488 – 166Q, with ApT in Pa and Q in m³/s. If this fan is connected to a 1-m dia- meter duct (f = 0.045) whose length is 66 m, what flow rate will result? %3D
B-A pump has the following parameters N=2133.5 RPM, Ns = 40 RPM, D= 37.1 cm and is used to pump water up to 90 m(H) at maximum efficiency operation: write the answer only (a) At what speed should the pump be operated to pump water up to (76 m)? (b) What is the discharge in each case? (c) What is pumping power needed in each case? (d) What is consumed electrical power in each case if max = 90%? e- A pump discharges liquid at the rate of Q against a head of H. If specific weight of the liquid is w, find the expression for the pumping power.
B: The pump in Fig. Q3B increases the pressure in the water from 200 to 4000 kPa with a flow rate of 0.1 m³/s? The electric power of motor 275 kW. Determine the mechanical efficiency of the pump and overall efficiency pump/motor unit when the motor efficiency is 90 percent. Fig. Q3B 50 mm Pump 100 mm Water Motor
What is the performance of pump (in %, whole number) that supplies 80 gpm of water (80°F) with pressure of145 ft head?
A pump discharges 50 tons of water per hour to a height of 8 m, overall efficiency of the pumping system being 69%, what is the input and output power?
Q Consider the following data relating toperformance of a centrifugal pump:speed 1200 rpm, flow rate 30 L/s, head 20 m, and power 5 kW. If the speed of the pump is increased to 1500 rpm, assuming the efficiency isunaltered, Find the new flow rate and head.
A right cylindrical container 4 m. diameter is 3 m tall. A 50 mm diameter hole is provided at the bottom of the container to drain the water when necessary. If it is full of water, how long in hours does it take to empty the container from the instant the hole is opened? Coefficient of velocity and coefficient of contraction are both equal to 1.0. A.1.39 hoursC.1.13hoursB.1.26 hoursD.1.49hours
A centrifugal pump delivers 227 m3/hr of water from a source 4 meters below the pump center line to a pressure tank whose pressure is 2.8 kg/cm2. Friction loss estimates are 2 meters in the suction line and 1 meter in the discharge line. The diameter of the suction pipe is 250 mm and the discharge pipe is 200 mm. Find: a) The water horsepower b) The kW rating of the driving motor if the pump efficiency is 70%

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