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TECHNICAL NOTES

Subcooled Flow Boiling in Circumferentially Nonuniform and Uniform Heated Vertical Channels With Downward Flow

[+] Author and Article Information
Q. Peatiwala

71B Barakat Al-Haidry Memorial Market, Block “E”, North Nazimabad, Karachi 74700, Pakistan e-mail: qpeatiwala@hotmail.com  

R. D. Boyd

Department of Mechanical Engineering, Prairie View A&M University, Prairie View, TX 77446 e-mail: ronald_boyd@pvamu.edu

J. Heat Transfer 122(3), 620-625 (Mar 09, 2000) (6 pages) doi:10.1115/1.1286818 History: Received March 26, 1999; Revised March 09, 2000
Copyright © 2000 by ASME
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References

Chen,  J. C., 1966, “A Correlation for Boiling Heat Transfer to Saturated Fluids in Convective Flows,” Ind. Eng. Chem. Process Des. Dev., 5, No. 3, pp. 322–329.
Shah,  M. M., 1977, “A General Correlation for Heat Transfer During Subcooled Boiling in Pipes and Annuli,” ASHRAE Trans., 83, pp. 202–215.
Kandlikar,  S. G., 1990, “A General Correlation of Saturated Two-Phase Flow Boiling Heat Transfer Inside Horizontal and Vertical Tubes,” ASME J. Heat Transfer, 112, pp. 219–228.
Kandlikar,  S. G., 1991, “Development of Flow Boiling Map for Subcooled and Saturated Flow Boiling of Different Fluids Inside Circular Tubes,” ASME J. Heat Transfer, 113, pp. 190–200.
Steiner,  D., and Taborek,  J., 1992, “Flow Boiling Heat Transfer in Vertical Tubes Correlated by an Asymptotic Model,” Heat Transfer Eng., 13, No. 2, pp. 43–66.
Gungor,  K. E., and Winterton,  R. H. S., 1986, “A General Correlation for Flow boiling in Tubes and Annuli,” Int. J. Heat Mass Transf., 29, No. 3, pp. 351–358.
Gungor,  K. E., and Winterton,  R. H. S., 1987, “Simplified General Correlation for Saturated Flow Boiling and Comparison of Correlations with Data,” Chem. Eng. Res. Des., 65, pp. 148–156.
Boyd,  R. D., and Meng,  X., 1995, “Boiling Curve Correlation for Subcooled Flow Boiling,” Int. J. Heat Mass Transf., 38, pp. 758–760.
Liu,  Z., and Winterton,  R. H. S., 1991, “A General Correlation for Saturated and Subcooled Flow Boiling in Tubes and Annuli, Based on a Nucleate Pool Boiling Equation,” Int. J. Heat Mass Transf., 34, No. 3, pp. 2759–2763.
Peatiwala, Q., and Boyd, R. D., 1995, “Forced Convection and Flow Boiling in a Single-Side Heated Vertical Smooth Channel with Downward Flow,” Proceedings of the ASME National Heat Transfer Conference, Vol. 314, ASME, New York, pp. 133–143.
Boyd,  R. D., Smith,  A., and Turknett,  J., 1995, “Two-Dimensional Wall Temperature Measurements and Heat Transfer Enhancement for Top-Heated Horizontal Channels With Flow Boiling,” Exp. Therm. Fluid Sci.,11, pp. 372–386.
Reid, R. S., Pate, M. B., and Bergles, A. E., 1987, “Evaporation of Refrigerant 113 Flowing Inside Smooth Tubes,” ASME 87-HT-51.
Moffat,  R. J., 1988, “Describing the Uncertainties in Experimental Results,” Exp. Therm. Fluid Sci., 1, pp. 3–17.
Moffat, R. J., 1990, “Estimating the Credibility of Experimental Work,” Department of Mechanical Engineering, Stanford University, Stanford, CA.
Chen, J. C., and Tuzla, K., 1995, “Contribution of Convection and Boiling to Convective Flow Boiling,” Convective Flow Boiling International Conference Proceedings, Engineering Foundation, paper No. IV-10, Banff, Alberta, Canada.
Boyd,  R. D., 1989, “Subcooled Flow Boiling at 1.66 MPa Under Uniform High Heat Flux Conditions,” Fusion Technol., 16, pp. 324–330.
Peatiwala, Q., and Boyd, R. D., 1996, “Subcooled Flow Boiling in Circumferentially Non-Uniform and Uniform Heated Vertical Channels with Downward Flow: Comparisons With Selected Two-Phase Correlations,” Process Enhanced and Multiphase Heat Transfer, R. M. Manglik and A. D. Kraus, eds., Begell House, New York, pp. 183–189.

Figures

Grahic Jump Location
Comparisons of low heat flux, single-phase heat transfer data with predictions. Q=125.0 kW/m2;g=500.0 kg/m2;D=15.7 mm; and Tsat=120°C (Chen and Tuzla 15).
Grahic Jump Location
Comparisons of correlations (C) with experimental Freon-11 data for single-phase and two-phase heat transfer coefficients for uniform and single-side heated vertical smooth channels with downward flow for the following flow conditions: G=210.0 kg/m2s,D=25.4 mm;Z=Z4=0.6096 m, with an exit pressure of 0.1843 MPa (absolute)
Grahic Jump Location
Comparisons of correlations (C) with experimental Freon-11 data for single-phase and two-phase heat transfer coefficients for single-side heated vertical smooth channels with downward flow for the following flow conditions: G=210.0 kg/m2s,D=25.4 mm;Z=Z2=0.2032 m, with an exit pressure of 0.1843 MPa (absolute)
Grahic Jump Location
Comparisons of correlations (C) with experimental Freon-11 data for single-phase and two-phase heat transfer coefficients for single-side heated vertical smooth channels with downward flow for the following flow conditions: G=210.0 kg/m2s,D=25.4 mm;Z=Z6=1.016 m, with an exit pressure of 0.1843 MPa (absolute)
Grahic Jump Location
(a) Schematic of the vertical downward flow boiling loop. (b) Wall temperature measurement locations: (i) cross section locations, (ii) axial locations along heated length.
Grahic Jump Location
Control volume for the heated hydraulic diameter model

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