Resources and reliability of heat pipes with fiber capillary structure

1Kostornov, AG, 1Shapoval, AA, 1Moroz, AL, 2Shapoval, IV, 1Skrynskaia, NE
1Frantsevich Institute for Problems of Materials Science , National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Frantsevich Institute for Problems of Materials Science , National Academy of Sciences of Ukraine, Kyiv
Kosm. nauka tehnol. 2014, 20 ;(5):61-65
Section: Space Materials and Technologies
Publication Language: Russian

Some results of long-term endurance tests for heat pipes (HP) with capillary fiber structures are presented. The HP tested are primarily intended for the use in cooling and temperature control of space and aviation equipment. A special stand was created for endurance tests conducting for heat pipes. Six heat pipes with copper and corrosion-resistant casing and capillary structures have been constantly tested for 40 years, since 1975. The tests showed that a copper heat pipe with copper capillary structures can normally function over a very long period. At the same time, thermal characteristics of such heat pipes are almost not changed. In contrast to copper heat pipes, HP with corrosion-resistant casing and steel capillary structures increased their thermal resistance. As this takes place, such HP also worked without a hitch.

Keywords: capillary fiber structure, heat pipes

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