Energy storage and recovery

Details Energy storage and recovery Energy storage and recovery

Category

F - Mech Eng,Light,Heat,Weapons

Subcategory

03

Subsubcategory

B

CPC

60/42

IPC codes

F03B 17/02 (2006.01) F03B 13/00 (2006.01)

Type

Patent

Patent number

CA 1250437

Description

A B S T R A C T ENERGY STORAGE AND RECOVERY A method and system for underground storage and recovery of energy. 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, as a result of which the relatively low-density fluid is displaced out of the first cavern to the second cavern through an overground connection, filled with the second fluid. In order to retrieve the stored energy the low- density fluid is allowed to return to the first cavern displacing the high-density fluid to the second cavern, thus driving the pump/turbine.

Application Number

512356

Affiliated with

Also associated with

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