Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Forced Convective Boiling Heat Transfer of Non-Azeotropic Refrigerant Mixture R134a/R123 Inside Horizontal Smooth Tube

수평 전열관내 비공비 혼합냉매 R134a/R123의 강제대류비등 열전달에 관한 연구

  • Published : 2003.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

An experimental study was carried out to measure the heat transfer coefficient in flow boiling to mixtures of HFC-l34a and HCFC-123 in a uniformly heated horizontal tube. Tests were run at a pressure of 0.6 MPa and in the ranges of heat flux 1-50 kw/$m^2$, vapor quality 0-100 % and mass velocity 150-600 kg/$m^2$s. Heat transfer coefficients of mixture were less than the interpolated values between pure fluids both in the low quality region where the nucleate boiling is dominant and in the high quality region where the convective evaporation is dominant. Measured data of heat transfer are compared to a few available correlations proposed for mixtures. The correlation of Jung et. al. satisfactorily predicted the present data, but the data in lower quality was overpredicted and underpredicted the high quality data. The correlation of Kandlikar considerably underpredicted most of the data. and showed the mean deviation of 35.1%.

Keywords

References

  1. Webb, R. L. and Gupte N. S., 1992, 'A Critical Review of Correlations for Convective Vaporization in Tubes and Tube Banks,' Heat Transfer Engineering, Vol. 13, pp. 58-81 https://doi.org/10.1080/01457639208939782
  2. Chen, J. C., 1966, 'Correlation for Boiling Heat Transfer to Saturated Fluids in Convective Flow,' I.E.C. Proc. Dev., Vol. 5, pp. 322-329 https://doi.org/10.1021/i260019a023
  3. Bennett, D.L., and Chen, J.C., 1980, 'Forced Convective Boiling in Vertical Tubes for Saturated Pure Components and Binary Mixtures,' AIChE J., 26, pp. 451-461 https://doi.org/10.1002/aic.690260317
  4. Gungor, K. E. and Winterton, R. H. S., 1986, 'A General Correlation for Flow Boiling in Tubes and Annuli,' Int. J. Heat Mass Transfer, Vol. 29, pp. 351-358 https://doi.org/10.1016/0017-9310(86)90205-X
  5. Jung, D. S., and Radermacher, R., 1989, 'Prediction of Pressure Drop during Horizontal Annular Flow Boiling of Pure and Mixed Refrigerants,' Int. J. Heat Mass Transfer, Vol. 32, pp. 2435-2446 https://doi.org/10.1016/0017-9310(89)90203-2
  6. Shah, M. M., 1976, 'A New Correlation for Heat Transfer during Boiling Flow Through Pipes,' ASHRAE Trans. Vol. 82, pp. 66-86
  7. Gungor, K. E. and Winterton, R. H. S., 1987, 'Simplified General Correlation for Saturated Flow Boiling and Comparison of Correlations with Data,' Chem. Eng. Res. Des, Vol. 65, pp. 148-156
  8. Kandlikar, S. G., 1990, 'A General Correlation for Saturated Two-phase Flow Boiling Heat Transfer inside Horizontal and Vertical Tubes,' J. Heat Transfer, Vol. 112, pp. 219-228 https://doi.org/10.1115/1.2910348
  9. Kandlikar, S. G., 1991, 'Correlation Flow Boiling Heat Transfer Data in Binary Systems, HTD-Phase Change Heat Transfer,' ASME, Vol. 159, pp. 163-170
  10. Kutateladze, S. S., 1961, 'Boiling Heat Transfer, Int. J. Heat Mass Transfer,' Vol. 4, pp. 31-45 https://doi.org/10.1016/0017-9310(61)90059-X
  11. Liu, Z., and Winterton, R. H. S.,1988, 'Wet Wall Flow Boiling Correlation with Explicit Nucleate Boiling Term, in Multi-Phase Transport and Particulate Phenomena, (Veziroglu, T.N., ed.), Hemisphere, Washington, DC, Vol. 1, pp. 419-432
  12. Klimenko, V. V., 1988, 'A Generalized Correlation for Two-Phase Forced Flow Heat Transfer,' Int. J. Heat Mass Transfer, Vol. 31, pp. 541-552 https://doi.org/10.1016/0017-9310(88)90035-X
  13. Nishiumi, H., and Saito, S., 1977, 'Correlation of the Binary Interaction Parameter of the Modified Generalized BWR Equation of State,' J. Chem. Eng. Japan, Vol. 10, pp. 176-180 https://doi.org/10.1252/jcej.10.176
  14. Reid, R. C., Prausnitz, J. M., and Sherwood, T. K., 1977, 'The Properties of Gases and Liquids,' 3rd Edn., McGraw-Hill, New York
  15. Jung, D. S., and Radermacher, R., 1989, 'Horizontal Flow Boiling Heat Transfer Experiments with a Mixture of R22/R114, Int. J. Heat Mass Transfer, Vol. 32, pp. 131-145 https://doi.org/10.1016/0017-9310(89)90097-5