Browse > Article
http://dx.doi.org/10.3795/KSME-B.2015.39.10.817

Mass Transfer Characteristics of Vertical Two-Phase Flows with Orifice Nozzle  

Kim, Dong Jun (Dept. of Automotive System Engineering, Chonnam Nat'l Univ.)
Yang, Hei Cheon (School of Mechanical Design Engineering, Chonnam Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.10, 2015 , pp. 817-824 More about this Journal
Abstract
Experiments were carried out to investigate the flow and mass transfer characteristics of an orifice nozzle. Measurements of primary and suction flow rates, dissolved oxygen concentration, and electric power were obtained. Vertically injected mixed-jet images were captured by a direct visualization technique with a high speed camera unit. The mass ratio, volumetric mass transfer coefficient, and mass transfer performance were calculated using the measured data. As the primary flow pressure increases, the mass ratio decreases slightly, while the volumetric mass transfer coefficient and electric power increase. As the primary flow pressure increases and the mass ratio decreases, the mass transfer rate increases because of the fine bubbles and wider distribution of the bubbles.
Keywords
Mass Transfer; Orifice Nozzle; Mass Ratio; Dissolved Oxygen; Volumetric Oxygen Transfer Coefficient; Visualization Image;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Park, B., Woo, S., Park, S., Min, J., Lee, W., You, S. and Jun, G., 2013, "Simulation Study of DAF Flotation Basin Using CFD," J. of KSWW, Vol. 27, No. 2, pp. 261-272.
2 Kim, D. J., Park, S. K. and Yang, H. C., 2014, "A Visual Investigation on Vertical Mixed Flow with Orifice Nozzle," Proceedings of 2014 KSME Fall Meeting, KSME 14F-Tu01C004.
3 Rodrigues, R. T. and Rubio, J., 2007, "DAFDissolved Air Flotation: Potential Applications in the Mining and Mineral Processing Industry," Int. J. Mineral Processing, Vol. 82, No. 1, pp. 1-13.   DOI   ScienceOn
4 Marui, T., 2013, "An Introduction to Micro/Nano-Bubbles and Their Applications," Systemics, Cybernetics and Informatics, Vol. 11, No. 4, pp. 68-73.
5 Kim, D. H., 2011, "Generation Mechanism and Application of Nano Bubble," Weekly Construction Technology Trend, Lotte E & C Research Institute, Vol. 134, EEEP-PL-7C-1110-646.
6 Lee, S. J., Ko, K. H., Ko, M. H., Yang, J. K. and Kim, Y. G., 2012, "Oxygen Transfer and Hydraulic Characteristics in Bubble Column Bioreactor Applied Fine Bubble Air Diffusing System," J. Korean Society of Environmental Engineers, Vol. 34, No. 11, pp. 772-779.   DOI   ScienceOn
7 Zhang, W. and Zhu, D. Z., 2013, "Bubble Characteristics of Air-Water Bubbly Jets in Crossflow," Int. J. Multiphase Flow, Vol. 55, pp. 156-171.   DOI   ScienceOn
8 Lima Neto, I. E., Zhu, D. Z. and Rajaratnam, N., 2008, "Air Injection in Water with Different Nozzles," J. Hydraulic Research, Vol. 134, No. 4, pp. 283-294.
9 Lima Neto, I. E., Zhu D. Z. and Rajaratnam, N., 2008, "Bubbly Jets in Stagnant Water," I. J. Multiphase Flow, Vol. 34, pp. 1130-1141.   DOI   ScienceOn
10 Socolofsky, S. A. and Adams, E. E., 2002, "Multi- Phase Plumes in Uniform and Stratified Crossflow," J. Hydraulic Research, Vol. 40, No. 6, pp. 661-672.   DOI
11 Ashley, K. I., Mavinic, D. S. and Hall, K. J., 1990, "Effects of Orifice Size and Surface Conditions on Oxygen Transfer in a Bench Scale Diffused Aeration System," Environmental Technology, Vol. 11, pp. 609-618.   DOI
12 Gourich, B., Vial, C., Belhaj Soulami, M., Zoulalian, A. and Ziyad, M., 2008, "Comparison of Hydrodynamic and Mass Transfer Performances of an Emulsion Loop-Venturi Reactor in Cocurrent Downflow and Upflow Configuration," Chemical Engineering J., Vol. 140, pp. 439-447.   DOI   ScienceOn
13 Lima Neto, I. E., Zhu, D. Z. and Rajaratnam, N., 2008, "Horizontal Injection of Gas-Liquid Mixtures in a Tank," J. Hydraulic Research, Vol. 134, No. 12, pp. 1722-1731.   DOI   ScienceOn
14 Levitsky, S. P., Grinis, L. N., Haddad, J. and Levitsky, M. P., 2005, "Water Oxygenation in an Experimental Aerator with Different Air/Water Interaction Patterns," HAIT J. Science and Engineering B, Vol. 2, pp. 242-253.
15 Fadavi, A. and Chisti, Y., 2005, "Gas-Liquid Mass Transfer in a Novel Forced Circulation Loop Reactor," Chemical Engineering J., Vol. 112, pp. 73-80.   DOI   ScienceOn
16 Kim, D. J., Park, S. K. and Yang, H. C., 2015, "Mixed Flow and Oxygen Transfer Characteristics of Vertical Orifice Ejector," Trans. Korean Soc. Mech. Eng. B, Vol. 39, No. 1, pp. 61-69.   DOI   ScienceOn
17 iworks FX User Guide, 2010, Nahwoo Trading Co..
18 Klein-Douwel, R. J. H., Frijters, P. J. M., Somers, L. M. T., de Boer, W. A. and Baert, R. S. G., 2007, "Macroscopic Diesel Fuel Spray Shadowgraphy Using High Speed Digital Imaging in a High Pressure Cell," Fuel, Vol. 86, pp. 1994-2007.   DOI   ScienceOn
19 Chern, J.M. and Yang, S.P., 2003, "Oxygen Transfer Rate in a Coarse-Bubble Diffused Aeration System," Industrial & Engineering Chemistry Research, Vol. 42, pp. 6653-6660.   DOI   ScienceOn
20 Park, S. K. and Yang, H. C., 2013, "Flow and Oxygen Transfer Characteristics in an Aeration System Using an Annular Nozzle Ejectors," Industrial & Engineering Chemistry Research, Vol. 52, pp. 1756-1763.   DOI   ScienceOn
21 Park, S. K. and Yang, H. C., 2013, "Mixed Flow Characteristics of Aeration Process for Recirculation Aquaculture System Using Ejector," Trans. Korean Soc. Mech. Eng. B, Vol. 37, No. 9, pp. 847-854.   DOI   ScienceOn