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Slugging Frequency Correlation for Inclined Gas-liquid Flow
Abstract:In this work, new experimental data for slugging frequency in inclined gas-liquid flow are reported, and a new correlation is proposed. Scale experiments were carried out using a mixture of air and water in a 6 m long pipe. Two different pipe diameters were used, namely, 38 and 67 mm. The data were taken with capacitance type sensors at a data acquisition frequency of 200 Hz over an interval of 60 seconds. For the range of flow conditions studied, the liquid superficial velocity is observed to influence the frequency strongly. A comparison of the present data with correlations available in the literature reveals a lack of agreement. A new correlation for slug frequency has been proposed for the inclined flow, which represents the main contribution of this work.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1085058Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2681
 Azzopardi, B.J., 1997, Drops in annular two-phase flow, International Journal of Multiphase Flow, Vol. 23, pp. 1-53.
 Bendiksen, K. H., (1984), "An experimental investigation of the motion of long bubbles in inclined tubes", International Journal of Multiphase Flow, Vol. 10, No. 4, pp. 467-483.
 Cook, M. and Behnia, M., (2000), "Pressure drop calculation and modelling of inclined intermittent gas-liquid flow", Chemical Engineering Science, Vol. 55, No. 20, pp. 4699-4708.
 Dukler, A. E. and Hubbard, M. G., (1975), "A Model for Gas-Liquid Slug Flow in Horizontal and Near Horizontal Tubes", Ind. Eng. Chem. Fundamentals, Vol. 14, No. 4, pp. 337-347.
 Geraci, G., Azzopardi, B. J., and Van Maanen, H. R. E., ( 2007b), "Effect of inclination on circumferential film thickness variation in annular gas/liquid flow", Chemical Engineering Science, Vol. 62, No. 11, pp. 3032-3042.
 Geraci, G., Azzopardi, B. J., and Van Maanen, H. R. E., ( 2007a), "Inclination effects on circumferential film flow distribution in annular gas/liquid flows", AIChE Journal, Vol. 53, No. 5, pp. 1144-1150.
 Gregory, G. A. and Scott, D. S., (1969), "Correlation of liquid slug velocity and frequency in horizontal co-current gas-liquid slug flow", AIChE Journal , Vol. 15, pp. 833-835.
 Greskovich, E. J. and Shrier, A. L., (1972), "Slug frequency in horizontal gas-liquid slug flow", Ind. Eng. Chem. Proc. Design Dev., Vol. 11, No. 2, pp. 317-318.
 Hernandez-Perez, V., 2007, Gas-liquid two-phase flow in inclined pipes, a PhD Thesis, University of Nottingham, United Kingdom.
 Heywood, N. I. and Richardson, J. F., (1979), "Slug Flow of Air-Water Mixtures in a Horizontal Pipe: Determination of Liquid Hold-up by -ray Absorption", Chemical Engineering Science, Vol. 34, pp. 17-30.
 Hubbard, M. G., (1965), "An analysis of horizontal gas-liquid slug", Ph. D. Thesis, University of Houston, Houston USA .
 Jepson, W. P. and Taylor, R. E., (1993), "Slug flow and its transitions in large-diameter horizontal pipes", International Journal of Multiphase Flow, Vol. 19, No. 3, pp. 411-420.
 Kordyban, E. S., (1985), "Some Details of Developing Slugs in Horizontal Two-Phase Flow", AIChE J., Vol. 31, pp. 802.
 Malnes, D., (1983), "Slug flow in vertical, horizontal and inclined pipes", Tech. Rep. IFE/KR/E-83/002 Rev. 1987, Institute for Energy Technology.
 Manolis, I G., Mendes-Tatsis M A., and Hewitt, G F., (1995), "The effect of pressure on slug frequency on two-phase horizontal flow", The 2nd conference on multiphase flow, Kyoto, Japan, April 3-7, 1995.
 Nicholson, M. K., Aziz, K., and Gregory, G. A., (1978), "Intermittent two-phase flow in horizontal pipes: Predictive models", The Canadian Journal of chemical engineering, Vol. 56, pp. 653-663.
 Nydal, O. J., (1991), "An experimental investigation of slug flow", PhD thesis, University of Oslo.
 Tronconi, E., (1990), "Prediction of Slug Frequency in Horizontal Two- Phase Slug Flow", AIChE Journal, Vol. 36, No. 5, pp. 701-709.
 Van Hout, R., Shemer, L., and Barnea, D., (2003), "Evolution of hydrodynamic and statistical parameters of gas-liquid slug flow along inclined pipes", Chemical Engineering Science, Vol. 58, No. 1, pp. 115- 133.
 Wren, E., Baker, G., Azzopardi, B. J., and Jones, R., (2005), " Slug flow in small diameter pipes and T-junctions ", Experimental Thermal and Fluid Science, Vol. 29, No. 8, pp. 893-899 .
 Zabaras, G. J., (1999), "Prediction of slug frequency for gas-liquid flows", Annual Technical Conference, SPE 56462, pp. 181-188.