Method and apparatus for the storage of energy in power plants

Details Method and apparatus for the storage of energy in power plants Method and apparatus for the storage of energy in power plants

1977-02-04

1978-12-12

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60659, 60679, F01K 312, F01K 734

Patent

active

041290046

ABSTRACT:
An arrangement for the storage of energy in power plants to cover peak-load conditions. Hot water is heated in the feed water preheaters and is stored in a hot water storage tank. The tank is filled and emptied alternately, with a tank receiving cold water. The stored hot water is kept at feed water temperature, so that the temperature is uniform throughout the storage tank level. During peak load, the hot water is fed directly into the feed water line behind the high-pressure water preheaters. A steam cushion is maintained above the water surface in the hot-water storage tank to provide pressure and volume balance. The hot-water line leading to the hot-water storage tank, discharges into the feed water line behind the pressure feed water preheaters. A high-pressure feed pump is located behind this junction, and the hot-water storage tank is located underground in a cavern. The steam cushion and the hot-water storage tank may be connected to one of the bleeder lines of the turbine.

REFERENCES:
patent: 2942411 (1960-06-01), Hutchings
patent: 3448580 (1969-06-01), Nettel
patent: 3448581 (1969-06-01), Nettel

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