Average Boiling and Condensation Heat Transfer Coefficients of the Zeotropic Refrigerant Mixture R22/R142b in a Coaxial Tube-in-Tube Heat Exchanger

[+] Author and Article Information
J. P. Meyer, J. M. Bukasa, S. A. Kebonte

Department of Mechanical and Manufacturing Engineering, Rand Afrikaans University, Laboratory for Energy, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa

J. Heat Transfer 122(1), 186-188 (Oct 01, 1999) (3 pages) doi:10.1115/1.521455 History: Received January 01, 1999; Revised October 01, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.


Kruse, H. H., and Tiedemann, T., 1997, “Experience With HC Refrigerants and Projections for Future Applications, Current and Projected Use of Refrigerants in Europe,” Refrigerants for the 21st Century, ASHRAE/NIST Refrigerants Conference, Gaithersburg, MD, pp. 44–56.
Meyer,  J. P., and Greyvenstein,  G. P. 1991, “Hot Water for Homes in South Africa,” Energy Int. J. 16, pp. 1039–1044.
Meyer,  J. P. and Greyvenstein,  G. P. 1992, “Hot Water for Large Residential Units, Hospitals and Laundries with Heat Pumps in South Africa: A Techno-economic Analysis,” Energy Convers. Manage. 33, No. 2. pp. 135–143.
Smit,  F. J. and Meyer,  J. P., 1998, “Investigation of the Potential Effect of Zeotropic Refrigerant Mixture on Performance of a Hot-Water Heat Pump,” ASHRAE Trans., 104, pp. 387–394.
Johannsen, A. F. B., 1992, “Potential of Non-azeotropic Refrigerant Mixtures for Water-Heating Heat Pumps in South Africa,” Department of Mineral and Energy Affairs, Pretoria, South Africa, Report No. ED 8807.
Smit, F. J., 1996, “The Influence of a Non-azeotropic Refrigerant Mixture on the Performance of a Hot-Water Heat Pump,” M. Eng. dissertation, Rand Afrikaans University, Johannesburg, South Africa.
Kebonte, S. A., 1999, “Condensation Heat Transfer and Pressure Drop Coefficients of R22/R142b in a Water Cooled Helically Coiled Tube-in-Tube Heat Exchanger,” M. Eng. dissertation, Rand Afrikaans University, Johannesburg, South Africa.
Bukasa, J. M., 1999, “Average Boiling Heat Transfer and Pressure Drop Coefficients of R22/R142b in a Helically Coiled Water Heated Tube-in-Tube Heat exchanger,” M. Eng. dissertation, Rand Afrikaans, University, Johannesburg, South Africa.
Schlager,  L. M., Pate,  M. B., and Bergles,  A. E., 1990, “Evaporation and Condensation Heat Transfer and Pressure Drop in Horizontal, 12.7-mm Microfin Tubes with Refrigerant 22,” ASME J. Heat Transfer 112, pp. 1041–1047.
Kline,  S. J., and McClintock,  F. A. 1953, “Describing Uncertainties in Single Sample Experiments,” Mech. Eng., 75, pp. 3–8.
Akers,  W. W., Beans,  H. A., and Crosser,  O. K. 1959, “Condensation Heat Transfer Within Horizontal Tubes,” Chem. Eng. Prog. Symp. Ser., 55, No. 29 pp. 171–176.
Cavallini, A., and Zecchin, R. A., 1974 “A Dimensionless Correlation for Heat Transfer in Forced Convention Condensation,” 6th International Heat Transfer Congress, Tokyo, Japan, Vol. 3, pp. 309–313.
Travis,  D. P., Rohsenov,  W. M., and Baron,  A. B., 1973, “Forced Convection Condensation Inside Tubes: A Heat Transfer Equation for Condenser Design,” ASHRAE Trans., 79, pp. 157–165.
Azer,  N. Z., Abis,  L. V., and Soliman,  H. M. 1972, “Local Heat Transfer Coefficient During Forced Convection Condensation Inside Horizontal Tube,” ASHRAE Trans., 77, Part 1, pp. 182–201.
Jung,  D. S., McLinden,  M., Radermacher,  R., and Didion,  D., 1989, “Horizontal Flow Boiling Heat Transfer Experiments With a Mixture of R22/R114,” Int. J. Heat Mass Transf., 32, pp. 131–145.
Murata,  K., and Hashizume,  K. 1993, “Forced Convective Boiling of Non-Azeotropic Refrigerant Mixtures Inside Tubes,” J. Heat Transfer, 115, pp. 680–688.
Thome,  J. R. 1996, “Boiling of New Refrigerants: A State of the Art Review,” Int. J. Refrig., 19, pp. 435–457.


Grahic Jump Location
Schematic representation of coiled test section (not to scale)
Grahic Jump Location
Average heat transfer coefficients during condensation as function of mass flux
Grahic Jump Location
Average heat transfer coefficients during evaporation as function of mass flux




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