06 A simplified sketch of a hydraulic turbine runner is shown in the figure. Relative to the rotating runner, water enters at section (1) (cylindrical cross section area 4j at n -1.5 m) at an angle of 100° from the tangential direction and leaves at section (2) (cylindrical cross section area 42 at r - 0.85 m) at an angle of 50° from the tangential direction. The blade height at sections (1) and (2) is 0.45 in and the volume flowrate through the turbine is 30 m'is. The runner speed is 130 ipm in the direction shown. Determine the shaft power developed. Ans. -12.8 MW

06 A simplified sketch of a hydraulic turbine runner is shown in the figure. Relative to the rotating runner, water enters at section (1) (cylindrical cross section area 4j at n -1.5 m) at an angle of 100° from the tangential direction and leaves at section (2) (cylindrical cross section area 42 at r - 0.85 m) at an angle of 50° from the tangential direction. The blade height at sections (1) and (2) is 0.45 in and the volume flowrate through the turbine is 30 m'is. The runner speed is 130 ipm in the direction shown. Determine the shaft power developed. Ans. -12.8 MW

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

See similar textbooks

Similar questions

A 50 mm diameter siphon discharges oil (SG=0.88) from a reservoir (elev. 20m) into open air (elev. 15m). The head loss from the reservoir (point 1) to the summit (point 2, elev. 22m) is 2.5 times the velocity head in the siphon and head loss from the summit to the discharge end is 4 times the velocity head in the siphon. What is the absolutepressure at the summit (point 2) assuming the atmospheric pressure to be 101.3 kPa? Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: kPa (indicate the sign if negative) Decimal Places required in the final answer: 3
A Pelton turbines is desired to be installed. clear as it is believed to be necessary It can calculate the hydraulic power of turbines with a head of 210 meters relative to each other. Features: do = 120 mmku = 0,42kco = 0,96w2 = 0,85 (C1 – U1)β2 = 160 °
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.
Discuss which dimensionless pump performance parameter is typically used as the independent parameter. Repeat for turbines instead of pumps. Explain.
Answer completely The Fanning equation and the Darcy-Weisbach equation both relate the pressure drop with the dynamic pressure of the flowing fluid in a channel. What is the physical significance of the pressure drop? Why is it needed to be determined?
The system consists of 1200 m of 5 cm cast iron pipe, two 45° and four 90° flanged long-radius elbows, a fully open flanged globe valve, and a sharp exit into a reservoir. If the elevation at point 1 is 400 m, what gage pressure is required at point 1 to deliver 0.005 m3/s of water into the reservoir? Use the following: v = 1 x 10-6 m2/s Kentrance = 0.5 Kexit = 1 Kvalve = 6.9 f = 0.0316 γ = 9810 N/m3 Choices: 3.44 Mpa 1.02 MPa 3.48 Mpa 1.00 MPa None of the choices
The design of a new dam reveals that a water head of 10 meter and water flow rate of 100 cubic meter per second (m3/s) can be supplied for electricity generation. What kind of turbines would you recommend for the electric power generation?
Water is pumped between two reservoirs in a pipeline with the following characteristics; (d=275mm, L= 50m, = 0.02, minor loss is neglected. The pump performance curve is approximated by the equation: H,=21.5-6507 Where H, is in meters and Q is in m/s. Determine the discharge O and pump head /7 when two pumps in series are used for total static head (4Z=25m).
The S-shaped head-versus-flow curve in Fig. occursin some axial-flow pumps. Explain how a fairly flat systemloss curve might cause instabilities in the operation of thepump. How might we avoid instability?
A Francis radial-flow hydroturbine is being designed with the following dimensions: r2 = 2.00 m, r1 = 1.42 m, b2 = 0.731 m, and b1 = 2.20 m. The runner rotates at n. = 180 rpm. The wicket gates turn the flow by angle ?2 = 30° from radial at the runner inlet, and the flow at the runner outlet is at angle ?1 = 10° from radial. The volume flow rate at design conditions is 340 m3 /s, and the gross head provided by the dam is Hgross = 90.0 m. For the preliminary design, irreversible losses are neglected. Calculate the turbine specific speed of the turbine. Provide answers in both dimensionless form and in customary U.S. units. Is it in the normal range for a Francis turbine? If not, what type of turbine would be more appropriate?
A Francis radial-flow hydroturbine is being designed with the following dimensions: r2 = 2.00 m, r1 = 1.42 m, b2 = 0.731 m, and b1 = 2.20 m. The runner rotates at n. = 180 rpm. The wicket gates turn the flow by angle ?2 = 30° from radial at the runner inlet, and the flow at the runner outlet is at angle ?1 = 10° from radial. The volume flow rate at design conditions is 340 m3 /s, and the gross head provided by the dam is Hgross = 90.0 m. For the preliminary design, irreversible losses are neglected. Calculate the inlet and outlet runner blade angles ?2 and ?1, respectively, and predict the power output (MW) and required net head (m). Is the design feasible?
Pls. answer thank you! In Francis turbine, the pressure gage leading to the turbine casing reads 385 kpa and center of spiral casing is 3.5 m above the tailrace. If the velocity of water entering the turbine is 9 m/s, what is the net head of the turbine?