Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

Condensing Performance Evaluation in Smooth and Micro-Fin Tubes for Natural Mixture Refrigerant (Propane/Butane)

프로판/부탄 혼합자연냉매의 평활관과 마이크로핀관 내의 응축성능평가

  • Lee Sang-Mu (Research and Development Section, Kobelco-Materials Copper Tube Ltd) ;
  • Lee Joo-Dong (Air Conditioning R&D Team, Samsung Electronics Co. Ltd) ;
  • Park Byung-Duck (Department of Automotive Engineering, Sangju National University)
  • 이상무 ((주)Kobelco-Materials 동관 개발부) ;
  • 이주동 (삼성전자(주) 공조개발팀) ;
  • 박병덕 (상주대학교 자동차공학과)
  • Published : 2005.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper deals with the heat exchange performance prediction of a counter flow type double-tube condenser for natural refrigerant mixtures composed of Propane/n-Butane or Propane/i-Butane in a smooth tube and a micro-fin tube. The local characteristics of heat transfer, mass transfer and pressure drop are calculated using a prediction method developed by the authors. The total pressure drop and the overall heat transfer coefficient are also evaluated on various heat exchange conditions. The calculated results of the natural refrigerant mixtures are compared with HCFC22. In conclusion, natural refrigerant mixtures composed of Propane/n-Butane or Propane/i-Butane are appropriate candidates for alternative refrigerant from the viewpoint of heat transfer characteristics.

Keywords

References

  1. Chang, Y. S., Kim, M. S. and Ro, S. T., 2000, Performance and heat transfer characteristics of hydrocarbon refrigerants in a heat pump system, Int. J. Refrigeration, Vol. 23, pp. 232-242 https://doi.org/10.1016/S0140-7007(99)00042-0
  2. Mathur, G. D., 2000, Hydrodynamic characteristics of propane (R-290), isobutane (R-600a), and 50/50 mixture of propane and isobutane, ASHRAE Transactions, Vol. 106, pp. 571-582
  3. Oh, H. K., Park, S.J., Park, K. W., Roh, G. S. and Jeong, J. C., 2001, Study on condensation heat transfer characteristics of hydrocarbons natural refrigerants, International Journal of Air-Conditioning and Refrigeration, Vol. 9, No.3, pp. 10-17
  4. Yoon, W.J. and Kim, Y.C., 2002, Performance characteristics of propane/isobutane mixture in a small refrigeration system, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 14, No.1, pp. 73-82
  5. Lee, S. M., Park, B. D. and Koyama, S., 2002, Heat and mass transfer characteristics and performance evaluation of a double-tube condenser for an alternative refrigerant, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 14, No.6, pp.468-476
  6. Haraguchi, H., Koyama, S., Kogawa, K. and Fujii, T., 1993, Condensation heat transfer of refrigerant HFC134a, HCFC123 and HCFC22 In a horizontal smooth tube and a horizontal micro-fin tube, Proc. sou. National Heat Transfer Symp, of Japan, Yokohama, Vol. II, pp. 343-345
  7. Haraguchi, H., Koyama, S. and Fujii, T., 1994, Condensation of refrigerants HCFC22, HFC134a and HCFC123 in a horizontal smboth tube, Transactions of The Japan Society of Mechanical Engineers, Vol. 60, No. 574, pp.245-252
  8. Yu, J. and Koyama, S., 1998, Condensation heat transfer of pure refrigerants in micro fin tube, Proceedings of International Refrigeration Conference at Purdue, pp. 325-330
  9. Chilton, T. H. and Colburn, A. P., 1934, Mass transfer coefficients: predictions from data on heat transfer and fluid friction, Ind. Eng. Chem., Vol. 26, No.11, pp.1183-1187 https://doi.org/10.1021/ie50299a012
  10. Koyama, S., Yu, J. and Ishibashi, A., 1998, Condensation of binary refrigerant mixtures in a horizontal smooth tube, Thermal Science and Engineering, Vol. 6, No.1, pp.123-129
  11. Smith, S. L., 1971, Void fractions in twophase flow: a correlation based upon an equal velocity head model, Heat and Fluid Flow, Vol. 1, No.1, pp.22-39
  12. Incropera, F. P. and Dewitt, D. P., 1981, Fundamentals of heat transfer, John wiley and Sons Inc., p. 406
  13. McLinden, M. O., Klein, S. A., Lemmon, E. W. and Peskin, A. P., 1998, NIST thermodynamic properties of refrigerants and refrigerant mixtures database (REFPROP), Ver. 6.0