Theoretical analysis and experimental investigation on local heat transfer characteristics of HFC-134a forced-convection condensation inside smooth horizontal tubes

Pei Wen Li; Min Chen; Wen Quan Tao

doi:10.1080/01457630050194799

Theoretical analysis and experimental investigation on local heat transfer characteristics of HFC-134a forced-convection condensation inside smooth horizontal tubes

Pei Wen Li, Min Chen, Wen Quan Tao

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

An improved analysis model is presented for predicting the local heat transfer coefficient of forced condensation in the annular flow region inside smooth horizontal tubes. Heat transfer experiments for R-12 and R-134a are conducted inside a condensing tube with an inner diameter of 11 mm and a length of 13 m. The mass flux ranged from 200 to 510 kg/m²s, and the vapor qualities varied from 1.0 to 0.0. Compared with the experimental data, the numerical results have a deviation of not more than 20% and 25% for 80% of the total 47 points of R-12 and 88% of the total 226 points of R-134a, respectively.

Original language	English (US)
Pages (from-to)	34-43
Number of pages	10
Journal	Heat Transfer Engineering
Volume	21
Issue number	6
DOIs	https://doi.org/10.1080/01457630050194799
State	Published - Nov 2000
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1080/01457630050194799

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title = "Theoretical analysis and experimental investigation on local heat transfer characteristics of HFC-134a forced-convection condensation inside smooth horizontal tubes",

abstract = "An improved analysis model is presented for predicting the local heat transfer coefficient of forced condensation in the annular flow region inside smooth horizontal tubes. Heat transfer experiments for R-12 and R-134a are conducted inside a condensing tube with an inner diameter of 11 mm and a length of 13 m. The mass flux ranged from 200 to 510 kg/m2s, and the vapor qualities varied from 1.0 to 0.0. Compared with the experimental data, the numerical results have a deviation of not more than 20% and 25% for 80% of the total 47 points of R-12 and 88% of the total 226 points of R-134a, respectively.",

author = "Li, {Pei Wen} and Min Chen and Tao, {Wen Quan}",

year = "2000",

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AU - Li, Pei Wen

AU - Chen, Min

AU - Tao, Wen Quan

PY - 2000/11

Y1 - 2000/11

N2 - An improved analysis model is presented for predicting the local heat transfer coefficient of forced condensation in the annular flow region inside smooth horizontal tubes. Heat transfer experiments for R-12 and R-134a are conducted inside a condensing tube with an inner diameter of 11 mm and a length of 13 m. The mass flux ranged from 200 to 510 kg/m2s, and the vapor qualities varied from 1.0 to 0.0. Compared with the experimental data, the numerical results have a deviation of not more than 20% and 25% for 80% of the total 47 points of R-12 and 88% of the total 226 points of R-134a, respectively.

AB - An improved analysis model is presented for predicting the local heat transfer coefficient of forced condensation in the annular flow region inside smooth horizontal tubes. Heat transfer experiments for R-12 and R-134a are conducted inside a condensing tube with an inner diameter of 11 mm and a length of 13 m. The mass flux ranged from 200 to 510 kg/m2s, and the vapor qualities varied from 1.0 to 0.0. Compared with the experimental data, the numerical results have a deviation of not more than 20% and 25% for 80% of the total 47 points of R-12 and 88% of the total 226 points of R-134a, respectively.

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Theoretical analysis and experimental investigation on local heat transfer characteristics of HFC-134a forced-convection condensation inside smooth horizontal tubes

Abstract

ASJC Scopus subject areas

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