Results 201 to 210 of about 73,266 (262)
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Non‐dimensional surge tank analysis
International Journal for Numerical Methods in Engineering, 1972AbstractA computer program for surge tank analysis, which gives a complete history of the water level in the tank and the fluid velocity in the pressure conduit from the time of initiation of value closure, is described and presented. The governing equations are solved by third‐order Runge–Kutta procedure and losses in head in the pressure conduit and ...
Cheng‐Nan Lin, John S. Gladwell
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Journal of the Hydraulics Division, 1974
Oscillations in surge tanks are analyzed by an extended application of Prasil's formula. Surge tanks with expansion chambers and throttled surge tanks are also considered. Approximate solutions for determining maximum elevations of upsurges and downsurges in simple tanks and in the spilling surge tanks are obtained.
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Oscillations in surge tanks are analyzed by an extended application of Prasil's formula. Surge tanks with expansion chambers and throttled surge tanks are also considered. Approximate solutions for determining maximum elevations of upsurges and downsurges in simple tanks and in the spilling surge tanks are obtained.
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1983
Hydrodynamic generation of electrical power requires the efficient transfer of water under pressure from an elevated storage area, or reservoir, to the generating plant, often several hundred meters away. The obvious solution of connecting a large pipe to both ends has a serious shortcoming.
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Hydrodynamic generation of electrical power requires the efficient transfer of water under pressure from an elevated storage area, or reservoir, to the generating plant, often several hundred meters away. The obvious solution of connecting a large pipe to both ends has a serious shortcoming.
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Turbine governing and surge-tank stability
Journal of Hydraulic Research, 1992The stability of water-surface oscillations is investigated for the case of a tailrace surge chamber shared by two or more generating units in a hydroelectric power plant. Two kinds of turbine governing are applied for the condition of small-amplitude surge perturbations.
Fu-Meng Ye +2 more
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Penstock and Surge-Tank Problems
Transactions of the American Society of Civil Engineers, 1915The object of this paper is to give, in their best form, formulas for solving certain penstock and surge-tank problems, and to derive them from the fundamental principles on which they rest.
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Waterhammer, Surge Tanks and Open Channel Surge
1969In the following pages we deal with some aspects of hydraulic transients— the variations of flow and pressure which occur when one steady state changes to another steady state.
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1969
If in a hydro-electric scheme the water is conveyed to the turbines through a long conduit, a very large mass of water is contained in the conduit, and considerable forces are necessary to retard or accelerate this mass when the turbines’ demand for water changes. For example, in an 8 ft (2‧4 m) diameter pipeline 2 miles (3‧2 km) long the mass of water
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If in a hydro-electric scheme the water is conveyed to the turbines through a long conduit, a very large mass of water is contained in the conduit, and considerable forces are necessary to retard or accelerate this mass when the turbines’ demand for water changes. For example, in an 8 ft (2‧4 m) diameter pipeline 2 miles (3‧2 km) long the mass of water
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Journal AWWA, 1932
This paper discusses certain phases of the general problem of the regulation of long water columns as found in water works practice. This control must be exercised to prevent pressure changes occurring of such a magnitude that there may be danger of rupture of pipes, valves, centrifugal pump casings, etc.
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This paper discusses certain phases of the general problem of the regulation of long water columns as found in water works practice. This control must be exercised to prevent pressure changes occurring of such a magnitude that there may be danger of rupture of pipes, valves, centrifugal pump casings, etc.
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Oscillations in Closed Surge Tanks
Journal of Applied Mechanics, 1943Abstract The existing methods of predicting the oscillations in a closed surge tank are very lengthy unless drastic simplifications are made. In this paper a new and quick procedure is explained for calculating the maximum pressure and expansion of the air, which result from a sudden shutdown of the plant. Friction is taken into account,
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Comparative Experiments on Surge Tank Performance
Proceedings of the Institution of Mechanical Engineers, 1963The dual function of a surge tank is to reduce water-hammer waves in power station piping systems and to act as a rate-of-flow equalizer, from which immediate water or storage requirements following turbine load changes can be met. Design requirements are based on predictions of surging in the tank.
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