Heat transfer system for the utilization of cavities dug in the

Details Heat transfer system for the utilization of cavities dug in the Heat transfer system for the utilization of cavities dug in the

1978-02-13

1980-02-26

Richter, Sheldon Jay

Heat exchange

Geographical

165104S, 165107D, 165DIG4, F28D 1500

Patent

active

041900995

ABSTRACT:
One or a number of subsoil cavities are employed for the storage or recovery of hot liquids. At the time of heat storage, a heat-transporting liquid is extracted at low temperature at the lower end of each cavity, heated by heat exchange with an external fluid and reinjected at the upper end. At the time of heat recovery, the heat-transporting liquid is extracted at high temperature at the upper end of each cavity, cooled by heat exchange with an external fluid and reinjected at the lower end. The system comprises flow-arresting means for maintaining a minimum operating pressure at the top of each cavity, air or gas purge means, an expansion reservoir and a safety unit for ensuring one-way flow of the heat-transporting liquid from the expansion reservoir to each cavity.

REFERENCES:
patent: 1959286 (1934-05-01), Grebe
patent: 2933885 (1960-04-01), Benedek et al.
patent: 3608624 (1971-09-01), Hasselriis
patent: 3857244 (1974-12-01), Faucette
patent: 3974642 (1976-08-01), Pacault
patent: 4124061 (1978-11-01), Mitchell et al.

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