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U.S. Department of Energy
Office of Scientific and Technical Information

Ground cold storage and utilization

Patent ·
OSTI ID:6273969

A system is described for transmitting, storing and utilizing cold which includes the use of heat pipes for transmitting the winter cold to freeze the ground water storage, and two-phase flow pipes to effectively cool the warm air passing through the flow pipes in the air conditioning duct. The system provides for long-duration earth storage of the winter cold which can be effectively used during summer seasons for cooling homes, buildings and other structures. The two-phase flow pipes, characterized by having irreversible vapor flow, include a pump arrangement for transferring working fluid from the condenser section to the evaporator section of the flow pipes where phase-change is taken place by absorbing heat from the passing warm air.

Assignee:
IFI; EDB-81-092229
Patent Number(s):
US 4240268
OSTI ID:
6273969
Country of Publication:
United States
Language:
English