A correlation for forced convective boiling heat transfer of pure refrigerants in a horizontal smooth tube

Hiroshi Takamatsu, S. Momoki, T. Fujii

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

An experimental study is reported on the boiling heat transfer of HFC134a, HCFC22, CFC114 and CFC12 flowing inside a 7.9 mm ID horizontal smooth tube. Using a water-heated, double-tube type evaporator, the local heat transfer coefficients are measured for both counter and parallel flows. Based on the supposition of Chen that the total heat flux is represented as the sum of forced convective contribution and nucleate boiling contribution, a correlation equation is proposed for the data in the annular-flow regime. The mean deviation between the calculated and measured heat transfer coefficients is 12.2% for the present experimental data and 9.5% for the data available from literature. The proposed correlation shows that the nucleate boiling is not fully suppressed even in the high-quality region in the case of counter flow, while convective evaporation is dominant in the high-quality region with uniform heat flux condition.

Original languageEnglish
Pages (from-to)3351-3360
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume36
Issue number13
DOIs
Publication statusPublished - Jan 1 1993

Fingerprint

nucleate boiling
Nucleate boiling
norflurane
counterflow
refrigerants
Refrigerants
heat transfer coefficients
boiling
Boiling liquids
Heat transfer coefficients
Heat flux
heat flux
heat transfer
tubes
Heat transfer
annular flow
parallel flow
Parallel flow
evaporators
Evaporators

All Science Journal Classification (ASJC) codes

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

Cite this

A correlation for forced convective boiling heat transfer of pure refrigerants in a horizontal smooth tube. / Takamatsu, Hiroshi; Momoki, S.; Fujii, T.

In: International Journal of Heat and Mass Transfer, Vol. 36, No. 13, 01.01.1993, p. 3351-3360.

Research output: Contribution to journalArticle

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