4.to convert the kinetic energy of water into the mechanical shaftenergy. Water enters the turbine, at the inlet, with the velocityVin = 40m/s and the mass flow rate m=1,000kg/s. Water exits the Vi,z40msturbine with a negligible velocity, say, Vout = 0 m/s.The efficiency of m - loooly/sFigure on the right shows a hydraulic turbine designedHzOHzOthe turbine is 75 %. Potential energy and flow work can be ignored.4а.Please calculate the specific kinetic energy of water entering the turbine ( ɛr or ke; in J/kg).4b.Please calculate the rate of total kinetic energy of the water flow ( É̟ or KĖ ; in J/s or W)4с.Please determine the mechanical power output of this turbine (Wou; in W or kW).4d.Please determine how much mechanical energy would this turbine generate during an hour

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Answered: 4. to convert the kinetic energy of…

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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3.1 The Vertical-Shaft Francis Turbine has an overall efficiency of S90% and runs at 7.14 rev/sec with a water discharge of 15.5 m/sec. The head at this point is 240 m, the 93%. Assuming that there is no whirl at outlet from the runner and neglecting the thickness of the blades. Determine: 3.1.1 the output power. 3.1.2 the dimensionless specific speed. 3.1.3 the guide vane angle. 3.1.4 the runner blade angle at inlet.
Provide the diagram for the problem. Choose the correct answer and provide complete solution. Water at 60 F from a lake through 500 ft if 4in ID cast iron pipe at a water turbine 250 ft below the surface of the lake. After flowing from the turbine, the water is discharged into the atmosphere through a horizontal 50 ft section of the same pipe. The turbine power output is 10hp when the water in the discharged pipe is flowing at 5 ft/s. A. What is the turbine efficiency defined as the actual power output of the turbine divided by the power output that would be withdrawn if there are no friction within the turbine? a. 86%b. 65%c. 77%d. 50% B. If the turbine were by passed, what would be the flow rate of water through the 500 ft of 4in pipe. a. 45 lb/sb. 37 lb/sc. 52 lb/sd. 29 lb/s
A rection turbine has guide vane angle 30° the runner blades make an angle of 80° relative to the tanget at inlet .the blades width at inlet is 1/4 of the outer diameter .the water does not have any tanget velocity at outlet.the head is 25 m and the rotational speed of the runner is 16.67 rotation per second (rps) the turbine efficiency is 88% determine the runner diameter at the inlet and the power developed by this turbine
outlet and the flow Velocity to be constent. Find B. An inward flow reaction turbine Ŝ supplying weter at a rete G00 litre/seconde with a relocity of flow 6m/s.The relocity lf mls restecfilely. Assuming the discharge to the Fedi radiat at l MIN LTE 1/1 at the Periphery and the wheel Welocity at intet are 24mls cand 4:20 AM O 17% C Ine loane engple at inlet. he head of water over the Lekeed.
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Theoretical Torque required, TT (N-m). (Hint: first calculate the mechanical efficiency and theoretical flow rate. Convert rpm to rad/s). O 9.41 N-m 8.85 N-m 9.35 N-m 9.62 N-m 8.80 N-m
4. A centrifugal pump delivers 1500 L/min of water from an initial pressure of 156 kPa to a final pressure of 328 kPa. The area of the inlet pipe is 315 cm² and the area of the discharge pipe is 80 cm?. Solve for the power input to the pump, kW.
A jet of water with a velocity of 30 m/s impinges on a series of canes moving at 12 m/s at 30 to the direction of motion. The cane angle at outlet is 162 degrees to the direction of motion Complete (i) the cane angle at inlet for shochless entry and the efficiency of power transmission.
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.
In our house water pipe line with diameter of 2cm is connected to shower head that has 35 holes. The speed of the water in the pipe line is 1.1m/sec. i) What is the volume flow rate in the pipe line? ii) At what speed does the water leave one of the holes with diameter 0.0014m in the shower head?
A Pelton wheel develops 70 kW under a head of 60 m of water. It rotates 400 rpm. Overall efficiency is 80%. Find the discharge rate in m³/s. Use the equation below, where P is power of the turbine shaft and no is the overall efficiency, where specific weight of water is is 9.80 kN/m³ no P YQH A generator is driven by a small, single-jet Pelton turbine designed to have a power specific speed sp 0.20. The effective head at nozzle inlet is 200 m and the nozzle velocity coefficient is 0.985. The runner rotates at 880 rev/min, The turbine overall efficiency is 80%. Find (a) the power delivered by the shaft of the turbine and (b) find the power delivered by the water to the turbine. where density of water is 1000 kg/m³ and g is 9.80 m/s². Use Stup Ω P/p (gHE)* Overall efficiency ne and Power developed at turbine shaft hydraulic power P YQH
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Theoretical Flow Rate, QT. O 0.00235 m³/s O 0.0025 m³/s O 0.0027 m³/s O 0.0017 m³/s
1. As a junior city engineer of a municipality, you are tasked to design the specifications of the pump with 3650 cu.m/day. The water source in the municipality is from an open reservoir and will supply to a pressure tank that will distribute to the municipality. open 4l Pressure reservoir Tank 70 m 15 m Pump Determine the following specifications of the pump and piping system (assume fluid stagnation at the pump). Velocity head at pt.1 to 2 if the diameter of the pipe is a.) 200 mm b.) Suction pressure of the pump in kPa (Pressure at pt. 2). c.) Velocíty head at pt.3 to 4 if the diameter of the pipe is 150 mm d.) Discharge pressure of the pump in kPa (Pressure at pt. 4). Assume atmospheric pressure at the pump. If an air vent is installed at the pipe just right before the pressure tank with diameter of 20 mm, what is the velocity of discharge in m/s? The height of the pressure tank is 12 m, what is the flowrate in cu.m/hr at pt.5 if the diameter of the pipe is 150 mm? e.) f.)

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