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

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

An Experimental Study on Condensation Characteristics of Slit Fin-tube Heat Exchanger Using Alternative Refrigerants, R407C and R410A

대체냉매 R407C 및 R410A를 이용한 슬릿휜-관 열교환기의 응축특성에 관한 연구

  • 전창덕 (충주대학교 기계공학과) ;
  • 장경근 (연세대학교 기계공학과 대학원) ;
  • 강신형 (건양대학교 기계공학과) ;
  • 이진호 (연세대학교 기계공학과)
  • Published : 2002.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

R410A and R407C are considered to be alternative refrigerants to R22 for the air-conditioners. Experimental investigation is made to study the condensation heat transfer characteristics of slit fin-tube heat exchanger using alternative refrigerants R410A and R407C. R407C, a non-azeotropic refrigerant mixture, exhibited a quite different condensation phenomenon from those of R22 and R410A and its condensation heat transfer coefficient was much lower than that of R22 and R410A. Between the R22 and R410A, the condensation heat transfer coefficient of R410A, near-azeotropic refrigerant mixture, was a little higher than that of R22. R410A also showed the lowest condensation pressure drop across the test section. For all refrigerants, the condensation heat transfer coefficient and pressure drop increase as the mass flux increases.

Keywords

References

  1. Montreal Protocol on Substances That Deplete the Ozone Layer
  2. Korean Journal of Air-Conditioning and Refrigerating Engineering v.9 no.4 An experimental study on the performance of a window system air-conditioner using R407C and R410B Kim, M.H.;Shin, J.S.;Kim, K.J.
  3. 33rd National Heat Transfer Symposium of Japan v.2 A study thermal performance of air-cooled heat exchangers using alternative refrigerant Ebisu, T.;Kasai, D.;Torikoshi, K.
  4. Journal of Energy Research v.24 Heat transfer prediction of air-to-refrigerant two-phase flow boiling of alternatives to HCFC-22 inside air/refrigerant enhanced surface tubing Sami, S.M.;Grell, J. https://doi.org/10.1002/(SICI)1099-114X(20000325)24:4<349::AID-ER590>3.0.CO;2-T
  5. Applied Thermal Engineering v.16 Horizontal flow boiling of R22 and R407C in a 9.52mm micro-fin tube Kuo, C.S.;Wang, C.C. https://doi.org/10.1016/1359-4311(95)00076-3
  6. Proceedings of the SAREK no.Summer Flow boiling heat transfer characteristics of Pure and mixed refrigerant Han, J.U.;Kim, S.J.;Jung, D.S.;Kim, Y.I.
  7. Experimental study on evaporation and condensation heat transfer enhancement for R407C using Ebisu, T.;Torikoshi, K.
  8. Fundamental Hndbook(SI) ASHRAE
  9. Thermodynamic and transport properties of refrigerants and refrigerant mixtures database(REFPROP) (Ver.6.01) McLinden, M.O.;Klein, S.A.;Lemmon, E.W.;Peskin, A.P.
  10. Tran. Am. Soc. Mech. Engrs. v.37 A Basis for Rational Design of Heat Transfer Apparatus Wilson, E.E.
  11. Mechanical Engineering v.75 Describing Uncertainties in Single Sample Experiments Kline, S.J.;McClintock, F.A.
  12. Int. J. Heat and Fluid Flow v.18 Twophase heat transfer characteristics for R22/R407C in a 6.5mm smooth tube Wang, C.C.;Chiang, C.S. https://doi.org/10.1016/S0142-727X(97)00017-9
  13. Applied Thermal Engineering v.20 Experimental investigation of two phase flow condensation of alternatives to HCHC-220 inside enhanced surface tubing Sami, S.M.;Maltais, H. https://doi.org/10.1016/S1359-4311(99)00079-4
  14. International Journal of Refrigeration v.24 Experimental investigation on condensation heat transfer and pressure drop of new HFC refrigerants Cavallini, A.;Censi, G.;Col, D. Del;Doretti, L.;Longo, G.A.;Rossetto, L. https://doi.org/10.1016/S0140-7007(00)00070-0
  15. International Journal of KSME v.23 no.4 Condensation heat transfer coefficients of R22 alternative refrigerants on enhanced tubes Hwang, S.M.
  16. Proc. 30th National Symposia of Japan Condensation heat transfer of refrigerants HFC134a, HCFC123 and HCFC22 in horizontal smooth tube and a horizontal micro fin tube, Haraguchi, H.;Koyama, S.;Esaki, J.;Fujii, T.
  17. Study on the prediction of pressure drop for condensation and evaporation of alternative refrigerants in micro-fin tubes Choi, J.Y.
  18. Horizontal convective condensation of alternative refrigerant within a micro-fin tube NISTIR 6095 Kedzierski, M.A.;Goncaves, J.M.
  19. Proceeding 19th International Refrigeration Conference at Hague v.4 Condensation of new refrigerant inside smooth and enhanced tube Cavallini, A.;Doretti, L.;Klammsteiner, N.;Longo, G.A.;Rossetto, L.
  20. Journal of Heat and Mass Transfer v.22 A general correlation for heat transfer during film condensation inside pipes Shah, M.M. https://doi.org/10.1016/0017-9310(79)90058-9
  21. ASHRAE Transactions v.79 Force convection condensation inside tube: a heat transfer equation for condenser design Traviss, D.P.;Rohsenow, W.M.;Baron, A.B.
  22. Journal of Heat Transfer v.112 Evaporation and condensation heat transfer and pressure drop in horizontal, 12.7-mm micro-fin tubes with refrigerant 22 Schlager, L.M.;Pate, M.B.;Bergles, A.E. https://doi.org/10.1115/1.2910476
  23. Report of Inha University Predict pool boiling heat transfer coefficients of pure and mixed refrigerants Jung, D.S.;Bae, J.S.;Lee, Y.H.;Song, Y.J.;Lee, J.K.