Link to document:
Status
Electronic Resource
Call number
Publication
1080; Report;
Language
Library's review
ABSTRACT:
This is a report on heat-pipe analysis, fabrication, and evaluation capabilities. The heat pipe is a relatively recent development (1964) in extremely efficient heat-transport devices. The basic phenomena of evaporation, condensation, and surface tension pumping within a capillary wick
This is a report on heat-pipe analysis, fabrication, and evaluation capabilities. The heat pipe is a relatively recent development (1964) in extremely efficient heat-transport devices. The basic phenomena of evaporation, condensation, and surface tension pumping within a capillary wick
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structure permit the heat pipe to transfer large quantities of heat without the use of external components, Because the heat pipe can operate without the aid of condensate-return pumps, gravity, or centrifugal-force fields, it differs from conventional boiling-condensing thermal systems (e.g., Rankine cycle or reflux condenser systems). Theoretically, the heat pipe can transfer up to 500 times as much thermal energy per unit weight as can a solid thermal conductor having the same cross section. By appropriate selection of working fluids, heat pipes have been designed and operated at temperatures ranging from the cryogenic temperatures up to 2250 K (3590 F) and are limited at higher temperatures by available materials' technology. Show Less