Post-dryout heat transfer to Freon in a vertical tube at high subcritical pressures

Nishikawa Kaneyasu, Yoshida Suguru, Hideo Mori, Hiroshi Takamatsu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Studies of the post-dryout heat transfer were made based on experimental data of the heat transfer to Freon 22 flowing upward in a vertical, round tube at nigh subcritical pressures (reduced pressures of 0.68-0.92). A conventional theoretical model failed in part to reproduce the measured wall temperature. A nondimensional parameter Kn was introduced to a model for the post-dryout regime to take account of the thermodynamic nonequilibrium between the vapor and the liquid droplets. A correlation of Kn was developed and a method using this correlation was successful in predicting the wall temperature.

Original languageEnglish
Pages (from-to)1245-1251
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume29
Issue number8
DOIs
Publication statusPublished - Jan 1 1986

Fingerprint

Chlorofluorocarbons
freon
wall temperature
heat transfer
tubes
Heat transfer
nonequilibrium thermodynamics
Vapors
Thermodynamics
vapors
Temperature
Liquids
liquids
fluorocarbon 22

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Post-dryout heat transfer to Freon in a vertical tube at high subcritical pressures. / Kaneyasu, Nishikawa; Suguru, Yoshida; Mori, Hideo; Takamatsu, Hiroshi.

In: International Journal of Heat and Mass Transfer, Vol. 29, No. 8, 01.01.1986, p. 1245-1251.

Research output: Contribution to journalArticle

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