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

Nishikawa Kaneyasu, Yoshida Suguru, Mori Hideo, Takamatsu Hiroshi

Research output: Contribution to journalArticlepeer-review

14 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 - Aug 1986

All Science Journal Classification (ASJC) codes

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

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