Defrost behavior of frost layer developed on two cooling pipes by sublimation phenomenon

Hideo Inaba, Akihiko Horibe, Yoshiaki Kawakami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The present paper has dealt with a new defrost measure by using sublimation phenomenon which occurs below the triple point of water (273.16 K, 610.5Pa). The present experimental study has focused to examine the mass transfer of annular frost layers developed on two cooling horizonal pipes set in a vertical direction which was exposed to an impinging jet air flow. The morphology of the frost layer during sublimating was observed by using a CCD camera. The nondimensional correlation equations of mass transfer were derived as a function of various parameters.

Original languageEnglish
Pages (from-to)2964
Number of pages1
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume66
Issue number651
Publication statusPublished - Nov 2000

Fingerprint

frost
Sublimation
sublimation
mass transfer
Mass transfer
Pipe
Cooling
cooling
air flow
CCD cameras
Air
water
Water

Keywords

  • Defrost
  • Frost layer
  • Impinging jet flow
  • Mass transfer
  • Sublimation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

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AU - Inaba, Hideo

AU - Horibe, Akihiko

AU - Kawakami, Yoshiaki

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N2 - The present paper has dealt with a new defrost measure by using sublimation phenomenon which occurs below the triple point of water (273.16 K, 610.5Pa). The present experimental study has focused to examine the mass transfer of annular frost layers developed on two cooling horizonal pipes set in a vertical direction which was exposed to an impinging jet air flow. The morphology of the frost layer during sublimating was observed by using a CCD camera. The nondimensional correlation equations of mass transfer were derived as a function of various parameters.

AB - The present paper has dealt with a new defrost measure by using sublimation phenomenon which occurs below the triple point of water (273.16 K, 610.5Pa). The present experimental study has focused to examine the mass transfer of annular frost layers developed on two cooling horizonal pipes set in a vertical direction which was exposed to an impinging jet air flow. The morphology of the frost layer during sublimating was observed by using a CCD camera. The nondimensional correlation equations of mass transfer were derived as a function of various parameters.

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KW - Sublimation

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