Energy storage and recovery

Details Energy storage and recovery Energy storage and recovery

1986-08-01

1987-09-08

Husar, Stephen F.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60398, F01K 1302

Patent

active

046915249

ABSTRACT:
A method and apparatus for underground storage and recovery of energy is disclosed in which a first fluid having a relatively high density is pumped from the bottom of a second cavern to the bottom of a first cavern filled with a fluid having a relatively low density by means of an overground pump/turbine apparatus. The relatively low density fluid is displaced out of the first cavern to the second cavern through an overhead connection which is filled with the second fluid. The stored energy is retrieved as the high density fluid is allowed to return to the second cavern and drives the pump/turbine.

REFERENCES:
patent: 3385067 (1968-05-01), Van Eek
patent: 4022687 (1977-05-01), Perren
patent: 4086765 (1978-05-01), Gillian
patent: 4182128 (1980-01-01), Gardner
patent: 4364228 (1982-12-01), Eller

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