Theoretical calculation on forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside tube

M. Chen, Peiwen Li, Q. W. Wang, W. Q. Tao

Research output: Contribution to journalArticle

Abstract

A theoretical approach to forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside smooth tubes was developed. Calculations were performed for R32/R134a mixtures with the R32 mass fraction ranged from 0 to 60.1%. The results reveals that there is a reduction of heat transfer coefficient for a nonazeotropic mixture compared with that of a single component substance with the same thermophysical properties. The reduction of the heat transfer coefficient depends not only on the mass fraction of the mixture, but also on the vapor quality of the fluid. Besides, minimum heat transfer coefficients were observed at mass fractions ranging from 10% to 30% for R32/R234a mixtures.

Original languageEnglish (US)
Pages (from-to)114-118
Number of pages5
JournalHuagong Xuebao/Journal of Chemical Industry and Engineering (China)
Volume52
Issue number2
StatePublished - Feb 2001
Externally publishedYes

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Heat transfer coefficients
Condensation
Thermodynamic properties
Vapors
Fluids

Keywords

  • Condensation heat transfer
  • Nonazeotropic mixture
  • Theoretical calculation

ASJC Scopus subject areas

  • Filtration and Separation
  • Process Chemistry and Technology

Cite this

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title = "Theoretical calculation on forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside tube",
abstract = "A theoretical approach to forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside smooth tubes was developed. Calculations were performed for R32/R134a mixtures with the R32 mass fraction ranged from 0 to 60.1{\%}. The results reveals that there is a reduction of heat transfer coefficient for a nonazeotropic mixture compared with that of a single component substance with the same thermophysical properties. The reduction of the heat transfer coefficient depends not only on the mass fraction of the mixture, but also on the vapor quality of the fluid. Besides, minimum heat transfer coefficients were observed at mass fractions ranging from 10{\%} to 30{\%} for R32/R234a mixtures.",
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T1 - Theoretical calculation on forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside tube

AU - Chen, M.

AU - Li, Peiwen

AU - Wang, Q. W.

AU - Tao, W. Q.

PY - 2001/2

Y1 - 2001/2

N2 - A theoretical approach to forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside smooth tubes was developed. Calculations were performed for R32/R134a mixtures with the R32 mass fraction ranged from 0 to 60.1%. The results reveals that there is a reduction of heat transfer coefficient for a nonazeotropic mixture compared with that of a single component substance with the same thermophysical properties. The reduction of the heat transfer coefficient depends not only on the mass fraction of the mixture, but also on the vapor quality of the fluid. Besides, minimum heat transfer coefficients were observed at mass fractions ranging from 10% to 30% for R32/R234a mixtures.

AB - A theoretical approach to forced convective condensation heat transfer coefficient of nonazeotropic mixtures inside smooth tubes was developed. Calculations were performed for R32/R134a mixtures with the R32 mass fraction ranged from 0 to 60.1%. The results reveals that there is a reduction of heat transfer coefficient for a nonazeotropic mixture compared with that of a single component substance with the same thermophysical properties. The reduction of the heat transfer coefficient depends not only on the mass fraction of the mixture, but also on the vapor quality of the fluid. Besides, minimum heat transfer coefficients were observed at mass fractions ranging from 10% to 30% for R32/R234a mixtures.

KW - Condensation heat transfer

KW - Nonazeotropic mixture

KW - Theoretical calculation

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