Analysis of evaporation of non-azeotropic refrigerants in a horizontal tube

Chung Biau Chiou, Ding Chong Lu, Chi-Chuan Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Based on the two-phase separated model, a detailed one-dimensional model for binary mixtures had been proposed to study the in-tube evaporation in a horizontal tube. The present model can predict the detailed variation of the composition, temperature, heat transfer rate and pressure drop of various binary mixtures under constant heat flux, counter-flow, or parallel-flow conditions. The predicted results agree favorably with the Takamatsu et al. [Int. J. Heat Mass Transfer 36, 3555-3563 (1993)] and Jung et al. [Exp. Heat Transfer 2, 237-255 (1989)] experimental data. Also, it is found that the full evaporation of the non-azeotropic refrigerants may require a corresponding temperature higher than the saturation temperature of the less volatile component. The non-linear variation of the property plays an important role in the heat transfer and pressure drop characteristics of the refrigerant mixtures.

Original languageEnglish
Pages (from-to)817-827
Number of pages11
JournalApplied Thermal Engineering
Volume16
Issue number10
DOIs
StatePublished - 1 Jan 1996

Keywords

  • Evaporation
  • Model
  • Non-azeotropic refrigerants

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