Research Papers: Evaporation, Boiling, and Condensation

Heat Transfer During Near-Critical-Pressure Condensation of Refrigerant Blends

[+] Author and Article Information
Srinivas Garimella

Sustainable Thermal Systems Laboratory,
George W. Woodruff School of
Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mail: sgarimella@gatech.edu

Ulf C. Andresen

Shell Oil Company,
New Orleans, LA 70139

Biswajit Mitra

Carrier Corporation,
Chiller Development Program,
Charlotte, NC 28269

Yirong Jiang

Thermo King,
Minneapolis, MN 55420

Brian M. Fronk

School of Mechanical,
Industrial and Manufacturing Engineering,
Oregon State University,
Corvallis, OR 97331

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received December 31, 2014; final manuscript received September 5, 2015; published online February 3, 2016. Assoc. Editor: Amitabh Narain.

J. Heat Transfer 138(5), 051503 (Feb 03, 2016) (16 pages) Paper No: HT-14-1849; doi: 10.1115/1.4032294 History: Received December 31, 2014; Revised September 05, 2015

Heat transfer during condensation of refrigerant blends R404A and R410A flowing through horizontal tubes with 0.76 ≤ D ≤ 9.4 mm at nominal Pr = 0.8–0.9 was investigated. Local heat transfer coefficients were measured for the mass flux range 200 < G < 800 kg m−2 s−1 in small quality increments over the entire vapor–liquid region. Heat transfer coefficients increased with quality and mass flux, while the effect of reduced pressure was not very significant within this range of pressures. The heat transfer coefficients increased with a decrease in diameter. Correlations from the literature were not able to predict the condensation heat transfer coefficient for these fluids at these near-critical pressures over the wide range of tube diameters under consideration. A new flow-regime based model for heat transfer in the wavy, annular, and annular/wavy transition regimes, which predicts 91% of the data within ±25%, is proposed.

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Lemmon, E. W. , Huber, M. L. , and McLinden, M. O. , 2010, Reference Fluid Thermodynamic and Transport Properties, NIST Standard Reference Database 23, Version 9.0, NIST, Boulder, CO.
Andresen, U. C. , Garimella, S. , Mitra, B. , Jiang, Y. , and Fronk, B. M. , 2015, “ Pressure Drop During Near-Critical-Pressure Condensation of Refrigerant Blends,” Int. J. Refrig., 59, pp. 1–13. [CrossRef]
Taitel, Y. , and Dukler, A. E. , 1976, “ A Model for Predicting Flow Regime Transitions in Horizontal and Near Horizontal Gas–Liquid Flow,” AIChE J., 22(1), pp. 47–55. [CrossRef]
Breber, G. , Palen, J. W. , and Taborek, J. , 1980, “ Prediction of Horizontal Tubeside Condensation of Pure Components Using Flow Regime Criteria,” ASME J. Heat Transfer, 102(3), pp. 471–476. [CrossRef]
Ewing, M. E. , Weinandy, J. J. , and Christensen, R. N. , 1999, “ Observations of Two-Phase Flow Patterns in a Horizontal Circular Channel,” Heat Transfer Eng., 20(1), pp. 9–14. [CrossRef]
Dobson, M. K. , and Chato, J. C. , 1998, “ Condensation in Smooth Horizontal Tubes,” ASME J. Heat Transfer, 120(1), pp. 193–213. [CrossRef]
Soliman, H. , 1982, “ On the Annular-to-Wavy Flow Pattern Transition During Condensation Inside Horizontal Tubes,” Can. J. Chem. Eng., 60(4), pp. 475–481. [CrossRef]
Coleman, J. W. , and Garimella, S. , 2000, “ Two-Phase Flow Regime Transitions in Microchannel Tubes: The Effect of Hydraulic Diameter,” ASME Heat Transfer Division—2000, American Society of Mechanical Engineers, New York, pp. 71–83.
Coleman, J. W. , and Garimella, S. , 2000, “ Visualization of Two-Phase Refrigerant Flow During Phase Change,” 34th National Heat Transfer Conference, Pittsburgh, PA, Paper No. NHTC2000-12115.
Coleman, J. W. , and Garimella, S. , 2003, “ Two-Phase Flow Regimes in Round, Square and Rectangular Tubes During Condensation of Refrigerant R134a,” Int. J. Refrig., 26(1), pp. 117–128. [CrossRef]
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, 46(18), pp. 3349–3363. [CrossRef]
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,” ASME J. Heat Transfer, 120(1), pp. 140–147. [CrossRef]
Rouhani, S. Z. , and Axelsson, E. , 1970, “ Calculation of Void Volume Fraction in the Subcooled and Quality Boiling Regions,” Int. J. Heat Mass Transfer, 13(2), pp. 383–393. [CrossRef]
Ebisu, T. , and Torikoshi, K. , 1998, “ Heat Transfer Characteristics and Correlations for R-410A Flowing Inside a Horizontal Smooth Tube,” ASHRAE Trans., 104(2), pp. 556–561.
Eckels, S. J. , and Pate, M. B. , 1991, “ Experimental Comparison of Evaporation and Condensation Heat Transfer Coefficients for HFC-134a and CFC-12,” Int. J. Refrig., 14(2), pp. 70–77. [CrossRef]
Han, D.-H. , and Lee, K.-J. , 2001, “ Experiments on Condensation Heat Transfer Characteristics Inside a 7 mm Outside Diameter Microfin Tube With R410A,” 35th National Heat Transfer Conference, Anaheim, CA.
Kwon, J. T. , and Kim, M. H. , 2000, “ Modeling and Experiments of In-Tube Condensation Heat Transfer for R22 and Its Alternative Refrigerant,” JSME Int. J., Ser. B, 43(4), pp. 596–601. [CrossRef]
Matkovic, M. , Cavallini, A. , Del Col, D. , and Rossetto, L. , 2009, “ Experimental Study on Condensation Heat Transfer Inside a Single Circular Minichannel,” Int. J. Heat Mass Transfer, 52(9–10), pp. 2311–2323. [CrossRef]
Charun, H. , 2012, “ Thermal and Flow Characteristics of the Condensation of R404A Refrigerant in Pipe Minichannels,” Int. J. Heat Mass Transfer, 55(9–10), pp. 2692–2701. [CrossRef]
Jiang, Y. , Mitra, B. , Garimella, S. , and Andresen, U. C. , 2007, “ Measurement of Condensation Heat Transfer Coefficients at Near-Critical Pressures in Refrigerant Blends,” ASME J. Heat Transfer, 129(8), pp. 958–965. [CrossRef]
Kosky, P. G. , and Staub, F. W. , 1971, “ Local Condensing Heat Transfer Coefficients in the Annular Flow Regime,” AIChE J., 17(5), pp. 1037–1043. [CrossRef]
Traviss, D. P. , Rohsenow, W. M. , and Baron, A. B. , 1973, “ Forced-Convection Condensation Inside Tubes: A Heat Transfer Equation for Condenser Design,” ASHRAE Trans., 79(Pt. 1), pp. 157–165.
Shah, M. M. , 1979, “ A General Correlation for Heat Transfer During Film Condensation Inside Pipes,” Int. J. Heat Mass Transfer, 22(4), pp. 547–556. [CrossRef]
Chitti, M. S. , and Anand, N. K. , 1995, “ An Analytical Model for Local Heat-Transfer Coefficients for Forced Convective Condensation Inside Smooth Horizontal Tubes,” Int. J. Heat Mass Transfer, 38(4), pp. 615–627. [CrossRef]
Chitti, M. , and Anand, N. , 1996, “ Condensation Heat Transfer Inside Smooth Horizontal Tubes for R-22 and R-32/125 Mixture,” HVAC&R Res., 2(1), pp. 79–100. [CrossRef]
Kwon, J. T. , Ahn, Y. C. , and Kim, M. H. , 2001, “ A Modeling of In-Tube Condensation Heat Transfer for a Turbulent Annular Film Flow With Liquid Entrainment,” Int. J. Multiphase Flow, 27(5), pp. 911–928. [CrossRef]
Ishii, M. , and Mishima, K. , 1989, “ Droplet Entrainment Correlation in Annular Two-Phase Flow,” Int. J. Heat Mass Transfer, 32(10), pp. 1835–1846. [CrossRef]
Guo, Z. , and Anand, N. K. , 2000, “ An Analytical Model to Predict Condensation of R-410A in a Horizontal Rectangular Channel,” ASME J. Heat Transfer, 122(3), pp. 613–620. [CrossRef]
Cavallini, A. , Censi, G. , Del Col, D. , Doretti, L. , Longo, G. A. , and Rossetto, L. , 2002, “ Condensation of Halogenated Refrigerants Inside Smooth Tubes,” HVAC&R Res., 8(4), pp. 429–451. [CrossRef]
Friedel, L. , 1979, “ Improved Friction Pressure Drop Correlations for Horizontal and Vertical Two Phase Pipe Flow,” European Two Phase Flow Group Meeting, Ispra, Italy, Paper No. E2.
Thome, J. R. , El Hajal, J. , and Cavallini, A. , 2003, “ Condensation in Horizontal Tubes, Part 2: New Heat Transfer Model Based on Flow Regimes,” Int. J. Heat Mass Transfer, 46(18), pp. 3365–3387. [CrossRef]
Bandhauer, T. M. , Agarwal, A. , and Garimella, S. , 2006, “ Measurement and Modeling of Condensation Heat Transfer Coefficients in Circular Microchannels,” ASME J. Heat Transfer, 128(10), pp. 1050–1059. [CrossRef]
Agarwal, A. , Bandhauer, T. M. , and Garimella, S. , 2010, “ Measurement and Modeling of Condensation Heat Transfer in Non-Circular Microchannels,” Int. J. Refrig., 33(6), pp. 1169–1179. [CrossRef]
Garimella, S. , and Bandhauer, T. M. , “ Measurement of Condensation Heat Transfer Coefficients in Microchannel Tubes,” 2001 ASME International Mechanical Engineering Congress and Exposition, American Society of Mechanical Engineers, New York, pp. 243–249.
Garimella, S. , and Christensen, R. N. , 1995, “ Heat Transfer and Pressure Drop Characteristics of Spirally Fluted Annuli: Part II—Heat Transfer,” ASME J. Heat Transfer, 117(1), pp. 61–68. [CrossRef]
Kays, W. M. , and Leung, E. Y. , 1963, “ Heat Transfer in Annular Passages: Hydrodynamically Developed Flow With Arbitrarily Prescribed Heat Flux,” Int. J. Heat Mass Transfer, 6(7), pp. 537–557. [CrossRef]
Walker, J. E. , Whan, G. A. , and Rothfus, R. R. , 1957, “ Fluid Friction in Noncircular Ducts,” AIChE J., 3(4), pp. 484–489. [CrossRef]
Churchill, S. W. , 1977, “ Comprehensive Correlating Equations for Heat, Mass and Momentum-Transfer in Fully Developed Flow in Smooth Tubes,” Ind. Eng. Chem. Fundam., 16(1), pp. 109–116. [CrossRef]
Churchill, S. W. , 1977, “ Friction-Factor Equation Spans All Fluid-Flow Regimes,” Chem. Eng., 84(24), pp. 91–92.
Moser, K. W. , Webb, R. L. , and Na, B. , 1998, “ A New Equivalent Reynolds Number Model for Condensation in Smooth Tubes,” ASME J. Heat Transfer, 120(2), pp. 410–417. [CrossRef]
Chato, J. C. , 1962, “ Laminar Film Condensation Inside Horizontal and Inclined Tubes,” ASHRAE J., 4, pp. 52–60.
Kim, N. H. , Cho, J. P. , Kim, J. O. , and Youn, B. , 2003, “ Condensation Heat Transfer of R-22 and R-410A in Flat Aluminum Multi-Channel Tubes With or Without Micro-Fins,” Int. J. Refrig., 26(7), pp. 830–839. [CrossRef]
Webb, R. L. , 1999, “ Prediction of Condensation and Evaporization in Micro-Fin and Micro-Channel Tubes,” Heat Transfer Enhancement of Heat Exchangers, S. Kakac , A. E. Bergles , F. Mayinger , and H. Yuncu , eds., Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 529–550.
Baroczy, C. J. , 1965, “ Correlation of Liquid Fraction in Two-Phase Flow With Application to Liquid Metals,” Chem. Eng. Prog. Symp. Ser., 61(57), pp. 179–191.
Cavallini, A. , and Zecchin, R. , 1974, “ A Dimensionless Correlation for Heat Transfer in Forced Convection Condensation,” 5th International Heat Transfer Conference, Tokyo, Japan, pp. 309–313.
Jiang, Y. , 2004, “ Quasi Single-Phase and Condensation Heat Transfer and Pressure Drop of Refrigerant R404A at Supercritical and Near Critical Pressures,” Ph.D. dissertation, Iowa State University, Ames, IA.
Mitra, B. , 2005, “ Supercritical Gas Cooling and Condensation of Refrigerant R410A at Near-Critical Pressures,” Ph.D. dissertation, Georgia Institute of Technology, Atlanta, GA.


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Fig. 1

Schematic of the experimental facility

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Fig. 2

Schematic of the 3.05 mm single tube test section

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Fig. 3

Schematic of the multiport test section

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Fig. 5

Experimental matrix

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Fig. 4

Resistance network for test section

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Fig. 7

Experimental R404A and R410A condensation heat transfer coefficient results for D = 6.2 and 9.4 mm

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Fig. 6

Experimental R410A condensation heat transfer coefficient results for D = 0.76, 1.52, and 3.05 mm

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Fig. 8

Comparison of h for R410A and R404A (9.4 mm tube)

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Fig. 9

Schematic of the wavy flow

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Fig. 12

Predicted h for 0.76, 1.52, and 3.05 mm diameter tubes

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Fig. 13

Predicted h for 6.2 and 9.4 mm diameter tubes

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Fig. 14

Model trends for annular and wavy flows

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Fig. 10

Differential element for film condensation

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Fig. 11

Overall heat transfer model results



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