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Research Papers: Evaporation, Boiling, and Condensation

Numerical Simulation of Forced Convective Condensation of Propane in a Spiral Tube

[+] Author and Article Information
G. D. Qiu

Institute of Heat Pump and
Air Conditioning Technology,
Harbin Institute of Technology,
Room 3305,
School of Municipal and
Environmental Engineering,
No.73, Huanghe Road,
Nan'gang District,
Harbin 150090, China
e-mail: qgd518@163.com

W. H. Cai

Division of Fluid Machinery and Engineering,
Harbin Institute of Technology,
J423, School of Energy Science and Engineering,
Xidazhi Street,
Nan'gang District,
Harbin 150001, China
e-mail: caiwh@hit.edu.cn

Z. Y. Wu

Institute of Heat Pump and
Air Conditioning Technology,
Harbin Institute of Technology,
Room 3305,
School of Municipal and
Environmental Engineering,
No.73, Huanghe Road,
Nan'gang District,
Harbin 150090, China
e-mail: 1123589558@qq.com

Y. Yao

Institute of Heat Pump and
Air Conditioning Technology,
Harbin Institute of Technology,
Room 3305,
School of Municipal and
Environmental Engineering,
No.73, Huanghe Road,
Nan'gang District,
Harbin 150090, China
e-mail: yangyao1963@163.com

Y. Q. Jiang

Deputy Director
Institute of Heat Pump and
Air Conditioning Technology,
Harbin Institute of Technology,
Room 1306,
School of Municipal and
Environmental Engineering,
No.73, Huanghe Road,
Nan'gang District,
Harbin 150090, China
e-mail: jyq7245@sina.com

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received April 1, 2014; final manuscript received December 19, 2014; published online January 21, 2015. Assoc. Editor: William P. Klinzing.

J. Heat Transfer 137(4), 041502 (Apr 01, 2015) (9 pages) Paper No: HT-14-1162; doi: 10.1115/1.4029475 History: Received April 01, 2014; Revised December 19, 2014; Online January 21, 2015

A numerical simulation of forced convective condensation of propane in an upright spiral tube is presented. In the numerical simulations, the important models are used: implicit volume of fluid (VOF) multiphase model, Reynolds stress (RS) turbulence model, Lee's phase change model and Ishii's concentration model, and also the gravity and surface tension are taken into account. The mass flux and vapor quality are simulated from 150 to 350 kg·m−2·s−1 and from 0.1 to 0.9, respectively. The numerical results show that in all simulation cases, only the stratified flow, annular flow, and mist flow are observed. The heat transfer coefficient and frictional pressure drop increase with the increase of mass flux and vapor quality for all simulation cases. Under different flow patterns and mass flux, the numerical results of void fraction, heat transfer coefficient, and frictional pressure drop show good agreement with the experimental results and correlations from the existing references.

Copyright © 2015 by ASME
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References

Figures

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Fig. 1

Cartesian axis convention

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Fig. 2

The effect of entrainment and no entrainment on flow patterns. (a) flow pattern of considering entrainment and (b) flow pattern of not considering entrainment.

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Fig. 3

Volume fraction of three representative flow patterns from this work. (a) Stratified flow; (b) annular flow; and (c) mist flow.

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Fig. 4

Velocity profile of three representative flow patterns from this work

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Fig. 5

Second flow velocity field of outlet for the case: G = 350 kg·m−2·s−1 and x = 0.55

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Fig. 6

Void fraction versus vapor quality: comparison between VOF simulation and Hajal's correlation [32]

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Fig. 7

Void fraction relative deviation between VOF simulation and Hajal's correlation [32] versus vapor quality

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Fig. 8

Heat transfer coefficient versus vapor quality: comparison between VOF simulation and experimental results [23]

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Fig. 9

Heat transfer coefficient relative deviation between VOF simulation and experimental results [23] versus vapor quality

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Fig. 10

Heat transfer coefficient versus vapor quality: comparison between VOF simulation and Boyko's correlation [11,33]

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Fig. 11

Heat transfer coefficient relative deviation between VOF simulation and Boyko's correlation [11,33] versus vapor quality

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Fig. 12

Frictional pressure drop versus vapor quality: comparison between VOF simulation and experimental results [23]

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Fig. 13

Frictional pressure drop relative deviation between VOF simulation and experimental results [23] versus vapor quality

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Fig. 14

Frictional pressure drop versus vapor quality: comparison between VOF simulation and Fuchs's correlation [34]

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Fig. 15

Frictional pressure drop relative deviation between VOF simulation and Fuchs's correlation [34] versus vapor quality

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