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High capacity heat pipe performance demonstrationA high capacity heat pipe which will operate in one-g and in zero-g is investigated. An artery configuration which is self-priming in one-g was emphasized. Two artery modifications were evolved as candidates to achieve one-g priming and will provide the very high performance: the four artery and the eight artery configurations. These were each evaluated analytically for performance and priming capability. The eight artery configuration was found to be inadequate from a performance standpoint. The four artery showed promise of working. A five-inch long priming element test article was fabricated using the four artery design. Plexiglas viewing windows were made on each end of the heat pipe to permit viewing of the priming activity. The five-inch primary element would not successfully prime in one-g. Difficulties on priming in one-g raised questions about zero-g priming. Therefore a small test element heat pipe for verifying that the proposed configuration will self-prime in zero-g was fabricated and delivered.
Document ID
19840009463
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 4, 2013
Publication Date
December 19, 1983
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.26:171733
NASA-CR-171733
Accession Number
84N17531
Funding Number(s)
CONTRACT_GRANT: NAS9-16582
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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