Experimental study on two-phase pressure drop of air-water in small diameter tubes at horizontal orientation

Abstract

Experimental results of adiabatic two-phase pressure drop in small diameter tubes are presented in this work. Air-water mixture is used as the working substance. Four test sections made of transparent acrylic tubes of different internal diameters ranging from 3.0 mm to 8.0 mm are used with different test section lengths from 150 mm to 400 mm. The investigation is carried out within the range of mass flux of water 16.58 -3050 kg/m2s, mass flux of air 8.25-204.10 kg/m2s and total mass flux 99.93-3184.69 kg/m2s. Some of the existing correlations for macro and mini-channels are compared with the experimental data. Based on the experimental data; a new correlation has been developed to predict two-phase pressure drop in horizontal channels.

Keywords

Dates

  • Submission Date2011-11-28
  • Revision Date2012-02-22
  • Acceptance Date2012-03-11

DOI Reference

10.2298/TSCI111128049A

References

  1. Han Ju Lee and Sang Yong Lee, Pressure drop correlations for two-phase flow within horizontal rectangular channels with small heights, International Journal of Multiphase Flow, 27 (2001), pp.783-796
  2. W. Zhang et al. Correlation of two-phase frictional pressure drop and void fraction in mini-channel, International Journal of Heat and Mass Transfer, 53(2010), pp.453-465
  3. Lockhart R. W, and Martinelli R.C., Proposed correlation of data for isothermal two-phase, two-component flow in pipes, Chemical Engineering Progress symposium series, 45 (1949), pp. 39-48
  4. Chisholm D. A theoretical basis for the Lockhart-Martinelli correlation for two-phase flow, International Journal of Heat Mass Transfer, 10 (1967), pp.1767-1778
  5. L.Friedel, Improved friction pressure drop correlations for horizontal and vertical two-phase pipe flow, in: European Two-Phase Flow Group Meeting, Ispra, Italy, 1979, paper E2
  6. Chisholm, D. Laird A.D.K., Two-phase flow in rough tubes. Trans.ASME 80 (1958), pp. 276-286
  7. Tran et al. Two-phase pressure drop of refrigerants during flow boiling in small channels; an experimental investigation and correlation development, International Journal of Multiphase Flow, 26 (2000), pp. 1739-1754
  8. Mishima K., Hibiki T. , Some characteristics of air-water two-phase flow in small diameter vertical tubes, International Journal of Multiphase Flow, 22 (1996), pp.703-712
  9. Jerry K. Keska, Gongto Wang, Pressure gradient calculation for air-water heterogeneous mixture flow in a small square horizontal channel based on the in situ parameters and flow pattern coefficient, Experimental Thermal and Fluid Science, 30 (2006), pp.403-413
  10. Licheng Sun and Kaichiro Mishima, Evaluation analysis of prediction methods for two-phase flow pressure drop in mini-channels, International Journal of Multiphase Flow, 35 (2009) pp.47-54
  11. Krzysztof Dutkowski, Two-phase pressure drop of air-water in minichannels, International Journal of Heat and Mass Transfer, 52 (2009), pp.5185-5192
  12. Wei Li and Zan Wu, A general correlation for adiabatic two-phase pressure drop in micro/mini-channels, International Journal of Heat and Mass Transfer, 53 (2010), pp.2732-2739
  13. P. N.-Y. Chung and M. Kawaji, The effect of channel diameter on adiabatic two-phase flow characteristics in microchannels, International Journal of Multiphase Flow, 30 (2004), pp.735-761
  14. Natan J. English and Satish G. Kandlikar, An experimental investigation into the effect of surfactants on air-water two-phase flow in minichannels, Heat Transfer Engineering, 27(2006) (4),pp.99-109
Volume 18, Issue 2, Pages521 -532