A surge chamber 10m in diameter is situated at the down stream end of a low pressure tunnel 9.8km long and 2.8m in diameter. At a steady discharge of 32m3/s the flow to the turbine is suddenly stopped by closure of the turbine inlet valves. Determine the maximum rise in level in the surge chamber.

A surge chamber 10m in diameter is situated at the down stream end of a low pressure tunnel 9.8km long and 2.8m in diameter. At a steady discharge of 32m3/s the flow to the turbine is suddenly stopped by closure of the turbine inlet valves. Determine the maximum rise in level in the surge chamber.

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 diverging tube discharges water from reservoir at a depth of 10m below the water surface. The diameter of the tube graduallyincreases from 150 mm at the throat to 225 mm at the outlet.Neglecting friction, determine the maximum possible rate ofdischarge through this tube.
Water at 20°C is withdrawn from a reservoir by means of a siphon, as shown in the figure. For d=10cm and D= 16cm, Determine: a) the minimum flow rate that can be achieved without cavitation occurring in the piping system, and b) the maximum elevation of the highest point in the piping system to prevent cavitation. c) Also, comment on the ways to increase the maximum elevation of the highest point in the piping system to prevent cavitation. (The saturation pressure of water at 20°C is 2.33 kPa)
O1: A stream of water of diameter d = 0.1 m flows steadily from a tank of diameter D= 1.0 m. Determine The Weight Flowrate, needed from the inflow pipe if the water depth remains constant, 0 — d=010m
Show that the quantity of water flowing across a triangular V-notch of angle 2θ isQ = Cd(8/15)tan (θ/2)(2g)1/2H 5/2 . Find the flow if the measured head above the bottom of the V is 70cm,when θ =120 o and Cd = 0.6.
A pump is required to move water at a design discharge of 1m3 /s between reservoirA to reservoir B (see schematic below). The difference in surface water elevations between A and B is10m. The difference in elevation between the surface elevation of A and the center of the first pipe sectionis 2m. The pipe is to be commercial steel with an internal diameter of 35cm. Determine the maximumdistance, LAP, from reservoir A that the pump could be installed without encountering cavitationproblems. Consider minor losses of a sharp-edged inlet. Assume a kinematic viscosity of 1x10-6 m 2/s and a specific weight of 9.79kN/m3 . Assume STP conditions (i.e., Pvapor = 3kPa, Patm=101.3kPa)
Calculate the total head of the system below. Assume a flow of 70 m³/h and that the pressure drops in the suction and discharge are 3 m and 4 m, respectively. ZA = 15m, ZB = 5m and ZC = 5m.
3. What is the volumetric flow rate between two plates if the top plate is pulled, while keeping the bottom plate stationary, and simultaneously imposing pressure p0 on the left endof the channel, and pressure p0 + ∆p (∆p > 0) on the right end of thechannel.
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?
A hydroelectric power generating system is shown in the figure. Water flows from an upper reservoir to a lower one passing through a turbine at the rate of 286 liters per second. The total length of pipe connecting the two reservoirs is 186 m. The pipe diameter is 346 mm and the Hazen-Williams coefficient is 129. The water surface elevations of reservoirs 1 and 2 are 194 m and 69 m, respectively. Determine the power in kW required by the turbine if it is 63% efficient? Neglect minor losses. Round your answer to 3 decimal places.
Water enters a two-armed lawn sprinkler along the vertical axis at a rate of 75 L/s, and leaves the sprinkler nozzles as 2-cm diameter jets at an angle of ? from the tangential direction, as shown. The length of each sprinkler arm is 0.52 m.For the specified flow rate, investigate the effect of discharge angle ? on the rate of rotation n. by varying ? from 0° to 90° in increments of 10°. Plot the rate of rotation versus ?, and discuss your results.
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