Thermosyphon condensate return device

Details Thermosyphon condensate return device Thermosyphon condensate return device

1989-04-26

1990-10-09

Davis, Jr., Albert W.

Heat exchange

Geographical

16510421, 62260, F28D 1502

Patent

active

049614630

ABSTRACT:
A thermosyphon for removing heat from a permafrost foundation, the invent can be installed in a frozen foundation with an evaporator section disposed either horizontally or with a negative (up) slope, thereby allowing the evaporator section of the thermosyphon to be buried in a more shallow location of the foundation than is possible with conventional thermosyphon devices. The thermosyphon of the invention has a condensate collection ring near the lowest point but higher than any point in the evaporator of a condenser section which extends above the permafrost foundation and into heat exchange contact with low-temperature above-ground air. Condensate formed in the condenser section by heat exchange with the air is collected in the collection ring and ducted through a condensate return tube to a desirable location within the evaporator section, usually the extreme distal end thereof. The present thermosyphon is thus capable of removing heat from a permafrost foundation or the like even when the evaporator section is disposed horizontally or at a negative slope.

REFERENCES:
patent: 2026423 (1935-12-01), Fiene
patent: 3217791 (1965-11-01), Long
patent: 3332476 (1967-07-01), McDougal
patent: 3771590 (1973-11-01), Best et al.
patent: 3828845 (1974-08-01), Waters
patent: 4320720 (1982-03-01), Streed
patent: 4382466 (1983-05-01), Shiraishi

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