A Review of Flow Pattern-Based Predictive Correlations during Refrigerant Condensation in Horizontally Smooth and Enhanced Tubes

REFERENCES

• Liebenberg , L. , Thome , J. R. and Meyer , J. P. 2005 . Flow Visualization and Flow Pattern Identification with Power Spectral Density Distributions of Pressure Traces during Refrigerant Condensation in Smooth and Microfin Tubes . J. Heat Transfer , vol. 127 ( 3 ) : 209 – 220 .
   Web of Science ®Google Scholar
• Dittus , F. W. and Boelter , L. M. K. 1930 . Heat Transfer in Automobile Radiators of the Tubular Type , vol. 2 , 443 Berkeley , Calif. : University of California Publications on Engineering . no. 13
   Google Scholar
• Coulomb , D. 2005 . IIR News: A Word from the Director . Int. J. Refrig. , vol. 28 ( 7 ) : 973 – 976 .
   Google Scholar
• Wang , C. 2005 . Tons of Two-Phase Data and Correlations: What Next? . Heat Transfer Eng. , vol. 26 ( 10 ) : 1 – 2 .
   Web of Science ®Google Scholar
• Thome , J. R. 2004 . Two-Phase Heat Transfer Using No-Phase Flow Models? . Heat Transfer Eng. , vol. 25 ( 6 ) : 1 – 2 .
   Web of Science ®Google Scholar
• Lambrechts , A. , Liebenberg , L. , Bergles , A. E. and Meyer , J. P. 2006 . Heat Transfer Performance during Condensation inside Horizontal Smooth, Micro-fin and Herringbone Tubes . J. Heat Transfer , vol. 128 ( 7 ) : 691 – 700 .
   Web of Science ®Google Scholar
• Bukasa , J.-P. , Liebenberg , L and Meyer , J. P. 2004 . Heat Transfer Performance during Condensation inside Spiraled Micro-fin Tubes . J. Heat Transfer , vol. 126 ( 3 ) June : 321 – 328 .
   Web of Science ®Google Scholar
• Olivier , J. A. , Liebenberg , L. and Meyer , J. P. 2005 . Experimental Pressure Drops during Condensation Inside Smooth, Helical Micro-fin and Herringbone Tubes Using R-22, R-134a, and R-407C . Proc. 6th World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics . April 17–21 2005 , Matsushima, Miyagi , Japan.
   Google Scholar
• El Hajal , J. , Thome , J. R. and Cavallini , A. 2003 . Condensation in Horizontal Tubes, Part 1: Two-Phase Flow Pattern Map . Int. J. Heat Mass Transfer , vol. 46 ( 18 ) : 3349 – 3363 .
   Web of Science ®Google Scholar
• Thome , J. R. 2005 . Update on Advances in Flow Pattern-Based Two-Phase Heat Transfer Models . Exp. Th. Fl. Sci. , vol. 29 ( 3 ) : 341 – 349 .
   Web of Science ®Google Scholar
• Taitel , Y. and Dukler , A. E. 1976 . A Model for Predicting Flow Regime Transitions in Horizontal and Near-Horizontal Gas-Liquid Flow . American Institute of Chemical Engineering (AIChE) Journal , vol. 22 ( 1 ) : 47 – 55 .
   Web of Science ®Google Scholar
• Liebenberg , L. 2003 . A Unified Prediction Method for Smooth and Micro-Fin Tube Condensation Performance , Ph.D. thesis Rand Afrikaans University .
   Google Scholar
• Kattan , N. , Thome , J. R. and Favrat , D. 1998 . Flow Boiling in Horizontal Tubes, Part 1: Development of a Diabatic Two-Phase Flow Pattern Map . J. Heat Transfer , vol. 120 ( 1 ) : 140 – 147 .
   Web of Science ®Google Scholar
• Kattan , N. , Thome , J. R. and Favrat , D. 1998 . Flow Boiling in Horizontal Tubes, Part 3: Development of a New Heat Transfer Model Based on Flow Patterns . J. Heat Transfer , vol. 120 ( 1 ) : 156 – 165 .
   Web of Science ®Google Scholar
• Kattan , N. , Thome , J. R. and Favrat , D. 1995a . Measurement and Prediction of Two-Phase Flow Patterns for New Refrigerants inside Horizontal Tubes . ASHRAE Trans , vol. 101 ( 2 )
   Google Scholar
• Kattan , N. , Thome , J. R. and Favrat , D. Boiling of R-134a and R-123 in a Microfin Tube . Proc. 19th Int. Congr. of Refrigeration . The Hague . vol. IVa , pp. 337 – 344 .
   Google Scholar
• Shao , D. W. and Granryd , E. 2000a . Flow Pattern, Heat Transfer and Pressure Drop in Flow Condensation; Part I: Pure and Azeotropic Refrigerants . HVAC&R Research. , vol. 6 ( 2 ) : 175 – 195 .
   Google Scholar
• Shao , D. W. and Granryd , E. 2000b . Flow Pattern, Heat Transfer and Pressure Drop in Flow Condensation; Part II: Zeotropic Refrigerants . HVAC&R Research , vol. 6 ( 2 ) : 197 – 209 .
   Google Scholar
• Cavallini , A. , Censi , G. , Del Col , D. , Doretti , L. and Rosetto , L. 2002 . A Tube-in-Tube Water/Zeotropic Mixture Condenser: Design Procedure against Experimental Data . Exp. Thermal Fluid Sciences , vol. 25 ( 7 ) : 495 – 501 .
   Web of Science ®Google Scholar
• Thome , J. R. 2002 . On Recent Advances in Modeling of Two-Phase Flow and Heat Transfer . Keynote Address: 1st International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics (HEFAT 2002) . April 8–10 2002 , Kruger Park , South Africa. pp. 13
   Google Scholar
• Thome , J. R. 2002 . Two-Phase Flow Pattern Map for Evaporation in Horizontal Tubes . Proc. 1st International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics (HEFAT 2002) . April 8–10 2002 , Kruger Park , South Africa. pp. 7
   Google Scholar
• Steiner , D. 1993 . Heat Transfer to Boiling Saturated Liquids, VDI-Wärmeatlas (VDI Heat Atlas) ed. Verein Deutscher Ingenieure, VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurswesen (GCV), Düsseldorf, Ch. Hbb.
   Google Scholar
• Zürcher , O. , Thome , J. R. and Favrat , D. 1998 . Intube Flow Boiling of R-407C and R-407C/Oil Mixtures, Part 1: Microfin Tube . Int. J. HVAC&R Research , vol. 4 ( 4 ) : 373 – 399 .
   Google Scholar
• Shedd , T. A. and Newell , T. A. March 2001 . Characteristics of the Liquid Film in Horizontal Two-Phase Flow , March , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 179
   Google Scholar
• Nusselt , W. 1916 . Die Oberflächenkondensation des Wasserdampfes . Zeit. Ver. Deut. Ing. , vol. 60 : 541 – 545 .
   Google Scholar
• Hewitt , G. F. , Jayanti , S. and Hope , C. B. 1999 . Structure of Thin Liquid Films in Gas-Liquid Horizontal Flow . Int. J. Multiphase Flow , vol. 16 ( 6 ) : 951 – 957 .
   Web of Science ®Google Scholar
• Jayanti , S. and Hewitt , G. F. 1997 . Hydrodynamics and Heat Transfer in Wavy-Annular Gas-Liquid Flow: A Computational Fluid Dynamics Study . International Journal of Heat and Mass Transfer , vol. 40 ( 10 ) : 2445 – 2460 .
   Web of Science ®Google Scholar
• Yang , C.-Y. and Webb , R. L. 1995 . Condensation of R-12 in Small Hydraulic Diameter Extruded Aluminium Tubes with and without Microfins . Int. J. Heat Mass Transfer , vol. 39 ( 4 ) : 791 – 800 .
   Web of Science ®Google Scholar
• Leuthner , S. , Maun , A. H. and Auracher , H. 1999 . “ Influence of Waves on Heat Transfer to Falling Films of Binary Mixture ” . In Two-Phase Flow Modelling and Experimentation 1999, 2 , Edited by: Celata , G. P. , DiMarco , P. and Shah , R. K. 1241 – 1247 . Pisa, Rome , , Italy : Edizioni ETS .
   Google Scholar
• Liebenberg , L. , Bergles , A. E. and Meyer , J. P. Towards a Unified Approach for Modeling of Refrigerant Condensation in Smooth Tubes . Proceedings: Festschrift for Dr. R.K. Shah . Grenoble , France.
   Google Scholar
• Nozu , S. , Katayama , H. , Nakata , H. and Honda , H. 1998 . Condensation of a Refrigerant CFC 11 in Horizontal Microfin Tubes (Proposal of a Correlation Equation for Frictional Pressure Gradient) . Exp. Th. Fl. Sci. , vol. 18 ( 1 ) : 82 – 96 .
   Web of Science ®Google Scholar
• Niño , V. G. , Hrnjak , P. S. and Newell , T. A. 2002 . Characterization of Two-Phase Flow in Microchannels , Air Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 202
   Google Scholar
• Hubbard , M. G. and Dukler , A. E. The Characterization of Flow Regimes for Horizontal Two-Phase Flow: Statistical Analysis of Wall Pressure Fluctuations . Proc. 1966 Heat Transfer and Fluid Mechanics Institute . pp. 100 – 121 .
   Google Scholar
• Jones , O. and Zuber , Z. Statistical Methods for Measurement and Analyses of Two-Phase Flow . Heat Transfer 1974: Proc. 5th International Heat Transfer Conference . pp. 200 – 204 .
   Google Scholar
• Weisman , J. , Duncan , D. , Gibson , J. and Crawford , T. 1979 . Effect of Fluid Properties and Pipe Diameter on Two-Phase Flow Patterns in Horizontal Lines . Int. J. Multiphase Flow , vol. 5 ( 6 ) : 437 – 462 .
   Web of Science ®Google Scholar
• Matsui , G. 1984 . Identification of Flow Regimes in Vertical Gas-Liquid Two-phase Flow using Differential Pressure Fluctuations . Int. J. Multiphase Flow , vol. 10 ( 6 ) : 711 – 720 .
   Web of Science ®Google Scholar
• Matsui , G. 1986 . Automatic Identification of Flow Regimes in Vertical Two-Phase Flow Using Differential Pressure Fluctuations . Nuclear Engineering Design , vol. 95 : 221 – 231 .
   Web of Science ®Google Scholar
• Franca , F. , Acikgoz , M. , Lahey , R. T. and Clausse , A. 1991 . The Use of Fractal Techniques for Flow Regime Identification . Int. J. Multiphase Flow , vol. 17 ( 4 ) : 545 – 552 .
   Web of Science ®Google Scholar
• Song , C. , No , H. and Chung , M. K. 1995 . Investigation of Bubble Flow Developments and Its Transition Based on the Instability of Void Fraction Waves . Int. J. Multiphase Flow , vol. 21 ( 2 ) : 381 – 404 .
   Web of Science ®Google Scholar
• Keska , J. , Smith , M. and Williams , B. 1999 . Comparison Study of a Cluster of Four Dynamic Flow Pattern Discrimination Techniques for Multi-Phase Flow . Flow Meas. and Instr. , vol. 10 ( 2 ) : 65 – 77 .
   Web of Science ®Google Scholar
• Hetsroni , G. , Mewes , D. , Enke , C. , Gurevich , M. , Mosyak , A. and Rozenblit , R. 2003 . Heat Transfer to Two Phase Flow in Inclined Tubes . International Journal of Multiphase Flow , vol. 29 ( 2 ) : 173 – 194 .
   Web of Science ®Google Scholar
• Sieder , E. N. and Tate , G. E. 1936 . Heat Transfer and Pressure Drop of Liquids in Tubes . Industrial and Engineering Chemistry , vol. 28 ( 12 ) : 1429 – 1435 .
   Google Scholar
• Wilson , E. E. 1915 . A Basis for Rational Design of Heat Transfer Apparatus . Trans. ASME , vol. 37 : 546 – 668 .
   Google Scholar
• Briggs , D. E. and Young , E. H. 1969 . Modified Wilson Plot Techniques for Obtaining Heat Transfer Correlation for Shell and Tube Heat Exchangers . Chem. Eng. Prog. Symp. , vol. 92 ( 65 ) : 34 – 45 .
   Google Scholar
• Akers , W. W. , Dean , H. A. and Crosser , O. K. 1959 . Condensation Heat Transfer within Horizontal Tubes . Chem. Eng. Prog. Symp. , vol. 55 : 171 – 176 .
   Google Scholar
• Palen , J. W. , Kistler , R. S. and Yang , Z. F. 1993 . What We Still Don't Know about Condensation in Tubes . Condensation and Condenser Design, ASME , : 19 – 53 .
   Google Scholar
• Martinelli , R. C. and Nelson , D. 1948 . Prediction of Pressure Drop during Forced-Circulation Boiling of Water . Transactions of the ASME , vol. 70 : 695 – 702 .
   Google Scholar
• Lockhart , R. W. and Martinelli , R. C. 1949 . Proposed Correlation of Data for Isothermal Two-phase, Two-Component Flow in Pipes . Chemical Engineering Progress , vol. 45 ( 1 ) : 39 – 48 .
   Web of Science ®Google Scholar
• Graham , D. , Chato , J. C. and Newell , T. A. 1999 . Heat Transfer and Pressure Drop during Condensation of Refrigerant 134a in an Axially Grooved Tube . Int. J. of Heat Mass Transfer , vol. 42 ( 11 ) : 1935 – 1944 .
   Web of Science ®Google Scholar
• Quiben , J. 2005 . Experimental and Analytical Study of Two-Phase Pressure Drops during Evaporation in Horizontal Tubes , PhD thesis Lausanne : Swiss Federal Institute of Technology (EPFL) . Thèse nr 3375
   Google Scholar
• Wojtan , L. , Ursenbacher , T. and Thome , J. R. 2005 . Investigation of Flow Boiling in Horizontal Tubes: Part I—A New Diabatic Two-Phase Flow Pattern Map . Int. J. Heat Mass Transfer , vol. 48 ( 14 ) : 2955 – 2969 .
   Web of Science ®Google Scholar
• Newell , T. A. and Shah , R. K. 2001 . An Assessment of Refrigerant Heat Transfer, Pressure Drop, and Void Fraction Effects in Microfin Tubes . Int. J. HVAC&R Research , vol. 7 ( 2 ) : 125 – 153 .
   Google Scholar
• Wang , H. S. and Honda , H. 2001 . Effects of Tube Diameter and Tubeside Fin Geometry on the Heat Transfer Performance of Air-Cooled Condensers . J. Enhanced Heat Transfer ,
   Web of Science ®Google Scholar
• Olivier , J. A. , Liebenberg , L. , Kedzierski , M. A. and Meyer , J. P. 2004 . Pressure Drop during Refrigerant Condensation inside Horizontal Smooth, Helical Microfin, and Herringbone Microfin Tubes . J. Heat Transfer , vol. 126 ( 5 ) : 687 – 696 .
   Web of Science ®Google Scholar
• Ito , M. and Kimura , H. 1979 . Boiling Heat Transfer and Pressure Drop in Internal Spiral-Grooved Tubes . Bulletin of the JSME , vol. 22 ( 171 ) : 1251 – 1257 .
   Google Scholar
• Miyara , A. , Otsubo , Y. , Ohtsuka , S. and Mizuta , Y. 2003 . Effects of Fin Shape on Condensation in Herringbone Microfin Tubes . Int. J. Refrig. , vol. 26 ( 4 ) : 417 – 424 .
   Web of Science ®Google Scholar
• Wang , C.-Y. and Webb , R. L. 1997 . A Predictive Model for Condensation in Small Hydraulic Diameter Tubes Having Axial Micro-Fins . Transactions of the ASME , vol. 119 : 776 – 782 .
   Web of Science ®Google Scholar
• Sacks , P. 1975 . Measured Characteristics of Adiabatic and Condensing Single-Component Two-Phase Flow of Refrigerant in a 0.377-in Diameter Horizontal Tube 12 ASME 75-WA/HT-24,
   Google Scholar
• Graham , D. M. , Kopke , H. R. , Wilson , M. J. , Yashar , D. A. , Chato , J. C. and Newell , T. A. An Investigation of Void Fraction in the Annular/Stratified Flow Regions in Smooth, Horizontal Tubes , Air Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC TR-144
   Google Scholar
• Kopke , H. R. , Newell , T. A. and Chato , J. C. August 1999 . Experimental Investigation of Void Fraction During Refrigerant Condensation in Horizontal Tubes , August , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC TR-142
   Google Scholar
• Wilson , M. J. , Newell , T. A. and Chato , J. C. July 1998 . Experimental Investigation of Void Fraction during Horizontal Flow in Larger Diameter Refrigeration Applications , July , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 140
   Google Scholar
• Yashar , D. A. , Newell , T. A. and Chato , J. C. July 1998 . Experimental Investigation of Void Fraction During Horizontal Flow in Smaller Diameter Refrigeration Applications , July , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC TR-141
   Google Scholar
• Collier , J. G. and Thome , J. R. 1994 . Convective Boiling and Condensation , Oxford : Clarendon Press .
   Google Scholar
• Woldesemayat , M. A. and Ghajar , A. J. 2006 . Comparison of Void Fraction Correlations for Different Flow Patterns in Horizontal upward Inclined Pipes . Int. J. Multiphase Flow , doi:10.1016/j.ijmultiphaseflow.2006.09.004
   Web of Science ®Google Scholar
• Zivi , S. M. 1964 . Estimation of Steady State Steam Void-Fraction by Means of Principle of Minimum Entropy Production . Trans. ASME, Series C , vol. 86 : 237 – 252 .
   Google Scholar
• Rouhani , Z. and Axelsson , E. 1970 . Calculation of Volume Void Fraction in the Subcooled and Quality Region . Int. J. Heat Mass Transfer , vol. 13 : 383 – 393 .
   Web of Science ®Google Scholar
• Graham , D. M. , Newell , T. A. and Chato , J. C. July 1997 . Experimental Investigation of Void Fraction during Refrigerant Condensation , July , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 135
   Google Scholar
• Yashar , D. A. , Wilson , M. J. , Kopke , H. R. , Graham , D. M. , Chato , J. C. and Newell , T. A. 1999 . An Investigation of Refrigerant Void Fraction in Horizontal Micro-Fin Tubes , Air-Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 145
   Google Scholar
• Cavallini , A. 1996 . Review Paper: Working Fluids for Mechanical Refrigeration—Invited Paper Presented at the 19th International Congress of Refrigeration, The Hague, August 1995 . Int. J. Refrig. , vol. 19 ( 8 ) : 485 – 496 .
   Web of Science ®Google Scholar
• Shah , R. K. , Zhou , S. Q. and Tagavi , K. A. 1999 . The Role of Surface Tension in Film Condensation in Extended Surface Passages . J. Enhanced Heat Transfer , vol. 6 : 179 – 216 .
   Web of Science ®Google Scholar
• Shikazono , N. , Itoh , M. , Uchida , M. , Fukushima , T. and Hatada , T. 1998 . An Analytical Model to Predict the Condensation Heat Transfer Coefficient in Horizontal Micro-Fin Tubes . ASHRAE Trans. , vol. 104 ( 2 ) : 143 – 152 .
   Google Scholar
• Yu , J. and Koyama , S. Condensation Heat Transfer of Pure Refrigerants in Microfin Tubes . Proc. 1998 International Refrigeration Conference at Purdue . July 14–17 . pp. 325 – 330 .
   Google Scholar
• Haraguchi , H. , Koyama , S. , Esaki , J. and Fujii , T. Condensation Heat Transfer of Refrigerants HFC134a, HCFC123 and HCFC22 in a Horizontal Smooth Tube and a Horizontal Micro-Fin Tube . Proc. 30th National Symposium of Japan . Yokohama . pp. 343 – 345 .
   Google Scholar
• Cavallini , A. , Censi , G. , Del Col , D. , Doretti , L. , Longo , G. A. , Rossetto , L. and Zilio , C. 2003 . Condensation inside and outside Smooth and Enhanced Tubes—A Review of Recent Research . Int. J. Refrig. , vol. 26 ( 4 ) : 373 – 392 .
   Web of Science ®Google Scholar
• Wang , H. S. and Honda , H. 2001 . Effects of Tube Diameter and Tubeside Fin Geometry on the Heat Transfer Performance of Air-Cooled Condensers . J. Enhanced Heat Transfer , vol. 8 ( 5 ) : 315 – 327 .
   Web of Science ®Google Scholar
• Goto , M. , Inoue , N. and Yonemoto , R. 2003 . Condensation Heat Transfer of R410A inside Internally Grooved Horizontal Tubes . Int. J. Refrig. , vol. 26 ( 4 ) : 410 – 416 .
   Web of Science ®Google Scholar
• Wang , J. , Lan , S. and Chen , G. 2000 . Experimental Study on the Turbulent Boundary Layer Flow over Riblets Surface . Fluid Dynamics Research , vol. 2 ( 4 ) : 217 – 229 .
   Web of Science ®Google Scholar
• Nozu , S. and Honda , H. 1999 . Condensation of Refrigerants in Horizontal, Spirally Grooved Microfin Tubes: Numerical Analysis of Heat Transfer in the Annular Flow Regime . Transactions of the ASME , vol. 122 : 80 – 91 .
   Web of Science ®Google Scholar
• Nozu , S. and Honda , H. 1999 . “ Condensation of CFC11 in Horizontal, Spirally Grooved Microfin Tubes, Heat Transfer ” . In Compact Heat Exchangers and Enhancement Technology for the Process Industries , Edited by: Shah , R. S. 329 – 336 . New York : Begell House, Inc. .
   Google Scholar
• Cavallini , A. , Del Gol , D. , Doretti , L. , Longo , G. A. and Rossetto , L. 1999 . “ Condensation Heat Transfer with Refrigerants ” . In Two-Phase Modeling and Experimentation 1999 71 – 88 . Edizioni ETS
   Google Scholar
• Friedel , L. Improved Friction Pressure Drop Correlations for Horizontal and Vertical Two-Phase Pipe Flow . European Two-Phase Flow Group Meeting . Ispra , Italy. Paper E2
   Google Scholar
• Sardesai , R. G. , Shock , R. A. W. and Butterworth , D. 1982 . Heat and Mass Transfer in Multicomponent Condensation and Boiling . Heat Transfer Eng. , vol. 3 ( 304 ) : 104 – 114 .
   Google Scholar
• 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. , vol. 23 ( 1 ) : 4 – 25 .
   Web of Science ®Google Scholar
• Christoffersen , B. R. , Chato , J. C. , Wattelet , J. P. and de Souza , A. L. 1993 . Heat Transfer and Flow Characteristics of R-22, R-32/R-125 and R-134a in Smooth and Micro-Fin Tubes , Air Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Report TR-47
   Google Scholar
• Koyama , S. , Miyara , A. , Takamatsu , H. and Fujii , T. 1990 . Condensation Heat Transfer of Binary Refrigerant Mixtures of R22 and R114 inside a Horizontal Tube with Internal Spiral Grooves . Int. J. Refrig , vol. 13 ( 7 ) : 256 – 263 .
   Web of Science ®Google Scholar
• Miyara , A. , Nonaka , K. and Taniguchi , M. 2000 . Condensation Heat Transfer and Flow Pattern inside a Herringbone-Type Micro-Fin Tube . Int. J. Refrig. , vol. 23 ( 2 ) : 141 – 152 .
   Web of Science ®Google Scholar
• 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 , vol. 210 : 161 – 171 .
   Google Scholar
• Azer , N. Z. and Said , S. A. Augmentation of Condensation Heat Transfer by Internally Finned Tubes and Twisted Tape Inserts . Proc. 7th International Heat Transfer Conference . München , West Germany.
   Google Scholar
• Butterworth , D. 1975 . A Comparison of Some Void-Fraction Relationships for Co-Current Gas-Liquid Flow . International Journal of Multiphase Flow , vol. 1 : 845 – 850 .
   Google Scholar
• Baroczy , C. J. 1965 . Correlation of Liquid Fraction in Two-Phase Flow with Application to Liquid Metals . Chem. Eng. Prog. Symp. , vol. 61 ( 57 ) : 179 – 191 .
   Google Scholar
• Jassim , E. W. and Newell , T. A. 2005 . Prediction of Two-Phase Pressure Drop and Void Fraction in Microchannels Using Probabilistic Flow Regime Mapping , Air Conditioning and Refrigeration Center, University of Illinois at Urbana-Champaign . ACRC Technical Report 241
   Google Scholar
• De Paepe , M. , Caniere , H. , T'Joen , C. , Steeman , C. , Steeman , H.-J. , WillockxChristians , M. , Van Rooyen , E. , Liebenberg , L. and Meyer , J. P. 2006 . Refrigerant Flow Regime Detection with a Capacitance Void Fraction Sensor . Proc. 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference . June 5–8 2006 , San Francisco .
   Google Scholar