대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제29권6호
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  • Pages.904-912
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  • 2005
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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마이크로 광 조형기술을 이용한 3차원의 배리어가 포함된 케닉스 마이크로 믹서의 개발

Development of a Three-Dimensional Barrier Embedded Kenics Micromixer by Means of a Micro-Stereolithography Technology

  • 이인환 (충북대학교 공과대학 기계공학부) ;
  • 권태헌 (포항공과대학교 기계공학과, 포항공과대학교 초소형기계기술연구소) ;
  • 조동우 (포항공과대학교 기계공학과, 포항공과대학교 초소형기계기술연구소) ;
  • 김동성 (포항공과대학교 기계공학과)
  • 발행 : 2005.06.01
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초록

The flow in a microchannel is usually characterized as a low Reynolds number (Re) so that good mixing is quite difficult to be achieved. In this regard, we developed a novel chaotic micromixer, named Barrier Embedded Kenics Micromixer (BEKM). In the BEKM, the higher level of chaotic mixing can be achieved by combining two general chaotic mixing mechanisms: (i) splitting/reorientation by helical elements inside the microchannel and (ii) stretching/folding via periodically located barriers on the channel wall. The fully three-dimensional geometry of BEKM was realized by a micro-stereolithography technology, in this study, along with a Kenics micromixer and a circular T-pipe. Mixing performances of three micromixers were experimentally characterized in terms of an average mixing color intensity of phenolphthalein. Experimental results show that BEKM has better mixing performance than other two micromixers. Chaotic mixing mechanism, proposed in this study, could be integrated as a mixing component with Micro-Total-Analysis-System, Lab-on-a-chip and so on.

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참고문헌

  1. Reyes, D.R., Iossifidis, D., Auroux, P.-A. and Manz, A., 2002, 'Micro Total Analysis Systems. 1. Introduction, Theory, and Technology,' Anal. Chem., Vol. 74, pp. 2623-2636 https://doi.org/10.1021/ac0202435
  2. Auroux, P.-A, Iossifidis, D., Reyes, D.R. and Manz, A, 2002, 'Micro Total Analysis Systems. 2. Analytical Standard Operations and Applications,' Anal. Chem., Vol. 74, pp. 2637-2652 https://doi.org/10.1021/ac020239t
  3. Branebjerg, J., Gravesen, P. and Krog, J.P., 1996, 'Fast Mixing by Lamination,' MEMS 96, San Diego, CA, February 11-15, pp. 441-446 https://doi.org/10.1109/MEMSYS.1996.494022
  4. Lee, Y.-K., Deval, J., Tabeling, P. and Ho, C.-M., 2001, 'Chaotic Mixing in Electrokinetically and Pressure Driven Micro Flows,' MEMS 2001, Interlaken, Switzerland, January 21-25, pp. 483-486 https://doi.org/10.1109/MEMSYS.2001.906584
  5. Liu, R.H., Stremler, M.A., Sharp, K.V., Olsen, M.G, Santiago, J.G, Adrian, R.J., Aref, H. and Beebe, D.J., 2000, 'Passive Mixing in a Three-Dimensional Serpentine Microchannel,' J. Microelectromech. Syst., Vol. 9, pp. 190-197 https://doi.org/10.1109/84.846699
  6. Stroock, A.D., Dertinger, S.K.W, Ajdari, A., Mezic, I., Stone, H.A. and Whitesides, G.M., 2002, 'Chaotic Mixer for Microchannels,' Science, Vol. 295, pp. 647-651 https://doi.org/10.1126/science.1066238
  7. Bertsch, A., Heimagartner, S., Cousseau, P. and Renaud, P., 2001, 'Static Micromixers Based on Large-Scale Industrial Mixer Geometry,' Lab Chip, Vol. 1, pp. 56-60 https://doi.org/10.1039/b103848f
  8. Ottino, J.M., 1989, The Kinematics of Mixing: Stretching, Chaos, and Transport, Cambridge Univ. Press, New York
  9. Kim, D.S., Lee, S.W, Kwon, T.H. and Lee, S.S., 2002, 'Barrier Embedded Chaotic Micromixer,' Proc. Micro Total Analysis Systems 2002, Kluwer Academic Publishers, Nara, Japan, pp. 757-759
  10. Kim, D.S., Lee, S.W, Kwon, T.H. and Lee, S.S., 2004, 'A Barrier Embedded Chaotic Micromixer,' J. Micromech. Microeng., Vol. 14, pp. 798~805 https://doi.org/10.1088/0960-1317/14/6/006
  11. Kim, S.J. and Kwon, T.H., 1996, 'Enhancement of Mixing Performance of Single Screw Extrusion Processes via Chaotic Flows,' Adv. Polym. Tech., Vol. 15, pp. 41-69 https://doi.org/10.1002/(SICI)1098-2329(199621)15:1<41::AID-ADV4>3.0.CO;2-K
  12. Hwang, W.R. and Kwon, T.H., 2000, 'Dynamical Modeling of Chaos Single-Screw Extruder and Its Three-Dimensional Numerical Analysis,' Polym. Eng. Sci., Vol. 40, pp. 702-714 https://doi.org/10.1002/pen.11200
  13. Lee, I.H. and Cho, D.-W, 2003, 'Micro-stereolithography Photopolymer Solidification Patterns for Various Laser Beam Exposure Conditions,' Int. J. Adv. Manuf. Tech., Vol. 22, pp. 410-416 https://doi.org/10.1007/s00170-003-1538-9
  14. Lee, I.H. and Cho, D.-W, 2004, 'An Investigation on Photopolymer Solidification considering Laser Irradiation Energy in Micro-stereolithography,' Microsyst. Technol., Vol. 10, pp. 592-598 https://doi.org/10.1007/s00542-003-0337-4
  15. Papautsky, I., Ameel, T. and Frazier, A.B., 2001, 'A Review of Laminar Single-Phase Flow in Microchannles,' Proc. 2001 ASME Int. Mech. Eng. Cong. & Exp., New York, USA, pp. 1-9
  16. Ou, J., Perot, B. and Rothstein, J.P., 2004, 'Laminar Drag Reduction in Microchannels Using Ultrahydrophobic Surfaces,' Phys. Fluids, Vol. 16, pp. 4635-4643 https://doi.org/10.1063/1.1812011