Figure A shows two chambers, (1) and (2), where: pi= 70 kPa, p2 = 5 kPa. The orifice has a diameter of 6.0cm, C. = 1.00, C, =0.95 and the head of the liquid (s=2.50) over the orifice is, h = 1.80 m. (a) Find the actualflow rate through the orifice; (b) To double thisdischarge, what must be the pressure pi, with p2unchanged?%3D%3D%3D%3DP2H.FIGURE A

Answered: Figure A shows two chambers, (1) and…

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 four-stage centrifugal pump has four identical impellers, keyed to the same shaft. The shaft is running at 400 r.p.m. and the total manometric head developed by the multistage pump is 40m. The discharge through the pump is 0.2 m*3/s. The vanes of each impeller are having outlet angle as 45°. If the width and diameter of each impeller at outlet is 5cm and 60 cm respectively, Find the manometric efficiency.
The pump-turbine system in Fig. P3.174 draws water fromthe upper reservoir in the daytime to produce power for acity. At night, it pumps water from lower to upper reservoirsto restore the situation. For a design fl ow rate of15,000 gal/min in either direction, the friction head loss is17 ft. Estimate the power in kW ( a ) extracted by the turbineand ( b ) delivered by the pump.
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In the figure, the pipe entrance is sharp-edged. If the flow rate is 0.004 m3/s, what power, in W,is extracted by the turbine?
A four-stage centrifugal pump has four identical impellers, keyed to the same shaft. The shaftis running at 400 r.p.m. and the total manometric head developed by the multistage pump is 40m. The discharge through the pump is 0.2 m*3/s. The vanes of each impeller are having outlet angle as 45°. If the width and diameter of each impeller at outlet is 5cm and 60 cm respectively, Find the manometric efficiency.
The pressure of the water base of a Pelton Wheel is 4850 kPa and the velocity at the same point is 6 m/s. The jet diameter is 20 cm, and the velocity coefficient is 0.98 and the turbine’s efficiency is 86%. Find the brake power, in bkw.
Here, a flow rate of 2 m3/s is active in a pipe, as seen in the attached figure. What is the expected power output of the turbine with 70% efficiency if the elevation difference of the reservoir surfaces is 60 m? How would I draw a EGL and HGL for this system?
A pump delivers gasoline at 20 degrees Celsius and 12 (m^3)/h. At the inlet p1=100 kPa, z1=1 m, and V1=2 m/s. At the exit p2=500 kPa, z2=4 m, and V2=3 m/s. How much power is required if the motor efficiency is 75 percent?
A pump delivers gasoline at 20°C and 12 m3/h. At the inletp1 =100 kPa, z1 = 1 m, and V1 = 2 m/s. At the exit p2 = 500 kPa, z2 = 4 m, and V2 = 3 m/s. How much poweris required if the motor efficiency is 75 percent?
An existing impulse turbine-generator installation operates at 450 rpm under a net Head of 520 m. The output current is 60 cycles per second. If a single 18-cm diameter waterjet is used, Cv = 0.98, Øe = 0.45 and ηT = 0.85. Find the flow through turbine in m3/sec.
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.
A pump draws 30-°C water at 0.5 liters per second from a pressurized tank where the air pressure above the water is . The required NPSH of the pump is 8.2 m. The suction pipe has a diameter of 4 cm, total length of 5.2 m, and friction factor of 0.005. If the pump has a suction lift of 3.8 m, will cavitation occur? Use the properties of sat. liquid water at 30°C. A. YES, CAVITATION WILL OCCUR B. NO, CAVITATION WILL NOT OCCUR

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