TECHNICAL PAPERS: Evaporation, Boiling, and Condensation

Pressure Drop During Refrigerant Condensation Inside Horizontal Smooth, Helical Microfin, and Herringbone Microfin Tubes

[+] Author and Article Information
Jonathan A. Olivier, Leon Liebenberg, Josua P. Meyer

Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria, 0002, South Africa

Mark A. Kedzierski

National Institute of Standards and Technology, Gaithersburg, MD

J. Heat Transfer 126(5), 687-696 (Nov 16, 2004) (10 pages) doi:10.1115/1.1795240 History: Received November 19, 2003; Revised June 15, 2004; Online November 16, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.


Liebenberg, L., 2002, “A Unified Prediction Method for Condensation Performance in Smooth and Microfin Tubes,” Ph.D. thesis, Rand Afrikaans University, Johannesburg.
Miyara,  A., Otsubo,  Y., Ohtsuka,  S., and Mizuta,  Y., 2003, “Effects of Fin Shape on Condensation in Herringbone Microfin Tubes,” Int. J. Refrig., 26, pp. 417–424.
Ebisu,  T., and Torikoshi,  K., 1998, “Experimental Study on Evaporation and Condensation Heat Transfer Enhancement for R-407C Using Herringbone Heat Transfer Tube,” ASHRAE Trans., 104(2), pp. 1044–1052.
Miyara,  A., Nonaka,  K., and Taniguchi,  M., 2000, “Condensation Heat Transfer and Flow Pattern Inside a Herringbone-Type Microfin Tube,” Int. J. Refrig., 23, pp. 141–152.
Goto,  N., Inoue,  N., and Ishiwatari,  N., 2001, “Condensation and Evaporation Heat Transfer of R-410A inside Internally Grooved Horizontal Tubes,” Int. J. Refrig., 24, pp. 628–638.
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single-Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–8.
REFPROP, 1999, “NIST Thermodynamic Properties of Refrigerants and Refrigerant Mixtures (REFPROP),” Version 6.0, NIST Standard Reference Database 23, National Institute of Standards and Technology, Gaithersburg, MD.
Rouhani,  S. Z., and Axelsson,  E., 1970, “Calculation of Volume Void Fraction in the Subcooled and Quality Region,” Int. J. Heat Mass Transfer, 13, pp. 383–393.
Thome, J. R., 2003, “On Recent Advances in Modeling of Two-Phase Flow and Heat Transfer,” Heat Transfer Engineering, 24 (6), pp. 46–59.
Lockhart,  R. W., and Martinelli,  R. C., 1949, “Proposed Correlation of Data for Isothermal Two-Phase, Two-Component Flow in Pipe,” Chem. Eng. Prog., 45, pp. 39–48.
Cavallini,  A., Del Col,  D., Doretti,  L., Longo,  G. A., and Rossetto,  L., 2000, “Heat Transfer and Pressure Drop During Condensation of Refrigerants Inside Horizontal Enhanced Tubes,” Int. J. Refrig., 23, pp. 4–25.
Owaga, D. C., 2003, “Flow Patterns during Refrigerant Condensation in Smooth and Enhanced Tubes,” Master’s dissertation, Rand Afrikaans University, Johannesburg.
Liebenberg, L., Thome, J. R., and Meyer, J. P., 2004, “Flow Pattern Identification With Power Spectral Density Distributions of Pressure Traces During Refrigerant Condensation in Smooth and Microfin Tubes,” ASME J. Heat Transfer, submitted for review.
Wang,  J., Lan,  S., and Chen,  G., 2000, “Experimental Study on the Turbulent Boundary Layer Flow Over Riblets Surface,” Fluid Dyn., 27(4), pp. 217–229.
Carnavos,  T. C., 1980, “Heat Transfer Performance of Internally Finned Tubes in Turbulent Flow,” Heat Transfer Eng., 4(1), pp. 32–37.
Souza, A. L., and Pimenta, M. M., 1995, “Prediction of Pressure Drop During Horizontal Two-Phase Flow of Pure and Mixed Refrigerants,” ASME Conference on Cavitation and Multiphase Flow, ASME, New York, Vol. 210, pp. 161–171.
Friedel, L., 1979, “Improved Friction Pressure Drop Correlation for Horizontal and Vertical Two-phase Two-component Flow in Pipes,” E2, European Two-Phase Flow Group Meeting, Ispra.
Azer, N. Z., and Said, S. A., 1982, “Augmentation of Condensation Heat Transfer by Internally Finned Tubes and Twisted Tape Inserts,” Proc. of 7th Int. Heat Transfer Conference, München, West-Germany, Hemisphere, 5 , pp. 33–38.
Haraguchi,  H., Koyama,  S., and Fujii,  T., 1994, “Condensation of Refrigerants HCFC22, HFC134a and HCFC123 in a Horizontal Smooth Tube: 1st Report, Proposals of Empirical Expressions for the Local Frictional Pressure Drop,” Trans. JSME, 60, pp. 2111–2116.


Grahic Jump Location
a) Basic geometry of the herringbone microfin tube (not to scale) and b) an illustration of how condensate is distributed inside the tube for the adopted orientation (exaggerated)
Grahic Jump Location
Schematic of the experimental facility
Grahic Jump Location
Determining the transition qualities by making use of a) the Thome 9 map for the smooth tube, and the method used by Liebenberg et al. 13 for b) the helical microfin tube and c) the herringbone microfin tube
Grahic Jump Location
Pressure gradients at mass fluxes of 400, 600, and 800 kg/m2 s for the three tubes and refrigerants tested
Grahic Jump Location
Average pressure drops of the experimental data and that predicted by Miyara et al. 4 and the newly developed correlation for refrigerants R-22, R-407C, and R-134a
Grahic Jump Location
Penalty factors for the herringbone microfin tube against a) the smooth tube and b) the helical microfin tube for R-22, R-407C, and R-134a
Grahic Jump Location
Comparison of the experimental data with the modified prediction data for R-22, R-407C and R-134a




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In