Accelerated cryogenic cooling caused by the temporary frost layer enhancer

Gedalya Mazor, Izhak Ladizhensky, Dmitry Nemirovsky, Alon Alfi, Andrei Rabin, Elad Yehud, Eli Korin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The possibility of using a frost layer, created on the surface of a sample that undergoes cryogenic treatment, as a heat transfer enhancer was recently studied. This layer grows on the preliminary cooled sample surface as a result of its contact with moist air flow prior to its immersion into liquid nitrogen. A significant increase in the outflow heat flux (up to 12.8 times), or, alternatively, a cooling time shortening, in comparison with the bare sample was found. A detailed description of the frost layer development along with the influence of the thickness of the layer on the efficiency of the cooling process, as well as environmental parameters that affect the thickness itself is presented in the paper.

Original languageEnglish
Article number4034899
JournalJournal of Heat Transfer
Volume139
Issue number2
DOIs
StatePublished - 1 Jan 2017

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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