The pump-turbine system in the Figure draws water from the upper reservoir in the daytime toproduce power for a city. At night, it pumps water from lower to upper reservoirs to restorethe situation. For a design flow rate of 15,000 gal/min in either direction, the friction head lossis 17 ft. Estimate the power in kW: (a) extracted by the turbine and (b) delivered by the1- Select coordinates and points 1 and 22- Write down your assumptions3- Apply Energy Eq. and start finding P, V, and z forpoints 1 and 2 as well as head (h) values4- Solve for unknown(1)Z₁ = 150 ftpump.Water at 20°CPump-turbine(2)2Z₂ = 25 ftP1 V²+pg 2gP2 V++Z2+hfriction + hTurbine - hpump [pressure head]29+Z1 =pg

Step 1: Step 2: Step 3: Step 4:

Answered: The pump-turbine system in the Figure…

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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Figure shows two points a half-period apart in theoperation of a pump. What type of pump is this ? Howdoes it work? Sketch your best guess of flow rate versustime for a few cycles.
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The head-discharge relationship for a certain pump can be represented by the equation H-29-6Q^2 The pump is fixed 2 m shove the water surface tank at a level 10 m above the pump. The suction and delivery pipes are 12 m and 720 m long, respectively and each pipe is 0.5 m in diameter. The Estimate the discharge (in m³/s) at the best operating point for the pumping system,
This problem is useful for the preliminary design of a hydroturbine. From the material learned in this chapter, it is fairly simple to estimate how much power a hydroturbine can generate, given only the flow rate of water and the elevation difference upstream and downstream of the dam. A dam has a gross head of 15.5 m and a flow rate of 0.22 m3 /s. Approximating the overall efficiency of the turbine/generator to be 75%, estimate the electrical power (in kW) that couldbe produced.
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Consider the incompressible flow of water through a divergent duct, where the inlet has a velocity & section area of 5 ft/s & 10 ft2. If the exit area is 5x the inlet area and the density of water is 62.4 lbm/ft3, solve for the pressure difference. (Please type answer no write by hend)
A sump pump (used to drain water from the basement of houses built below the water table) is draining a flooded basement at the rate of 0.85 L/s, with an output pressure of 3.05 × 105 Pa. a. The water enters a hose with a 2.8 cm inside diameter and rises 2.4 m above the pump. What is its pressure at this point, in pascals? You may neglect frictional losses. ( dont forget to convert the diameters of pipes into meters.) b. The hose then goes over the foundation wall, losing 0.35 m in height, and widens to 4.4 cm in diameter. What is the pressure now, in pascals? You may neglect frictional losses. ( dont forget to convert the diameters of pipes into meters.) Note: answer iS NOT 3.29 x 10^5 for either of these.
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