Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지

Melting Heat Transfer Characteristics of Plural Phase Change Microcapsules Slurry Having Different Diameters

  • Kim, Myoung-Jun (College of Ocean Science & Technology, Kunsan National University) ;
  • Kim, Myoung-Hwan (College of Maritime Science, Korea Maritime University)
  • Published : 2004.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

The present study has been performed for obtaining the melting heat transfer enhancement characteristics of water mixture slurries of plural microcapsules having different diameters encapsulated with solid-liquid phase change material(PCM) flowing in a pipe heated under a constant wall heat flux condition. In the turbulent flow region, the friction factor of the present PCM slurry was to be lower than that of only water flow due to the drag reducing effect of the PCM slurry. The heat transfer coefficient of the PCM slurry flow in the pipe was increased by both effects of latent heat involved in phase change process and microconvection around plural microcapsules with different diameters. The experimental results revealed that the average heat transfer coefficient of the PCM slurry flow was about 2～2.8 times greater than that of a single phase of water.

Keywords

References

  1. Hale, D. V., Hoover. M. J., and O'Neil, M. J., 1971, Phase Change Materials Handbook. NASA CR-61363
  2. Mehalick, E. M., and Tweedie, A. T., 1975, 'Two Component Thermal Energy Storage material.' Report NSF/RANN/SE/AER-74-09186, National Science Foundation, Washington, D.C
  3. Kasza, K. E., and Chen, M. M., 1982, 'Development of Enhanced Heat Transfer/Transport/Storage Slurries for Thermal System Improvement,' ANL-82-50, Argonne National Lab., Illinois
  4. Hart, R., and Thornton, F., 1982, 'Microencapsulation of Phase Change Materials,' Final Report Contract No. 82-80, Ohio Department of Energy, Ohio
  5. Charunyakorn, P., Sengupta, S., and Roy, S. K, 1991. 'Forced Convection Heat Transfer in Microencapsulated Phase Change Material Slurries Flow in Circular Ducts.' Int. J. Heat Mass Transfer, Vol. 34, pp. 819-833
  6. Choi, E.-S., Cho, Y-I., and Harold, G. L., 1994, 'Forced Convection Heat Transfer with Phase-Change-Material Slurries: Turbulent Flow in a Circular Tube,' Int. J. Heat Mass Transfer, Vol. 37, pp. 207-215
  7. Inaba. H., Kim, M.-J., and Horibe, A., 2002, 'Cold Heat Storage Characteristics of Latent Heat MicrocapsuleWater Mixture Flowing in a Pipe with Constant Temperature Wall,' Trans. JSME, Vol. 68, pp. 156-163
  8. Inaba. H., Kim, M.-J., and Horibe, A., 2002, 'Melting Heat Transfer Characteristics of Latent Heat Microcapsule Water Mixed Slurry Flowing in a Pipe with Constant Wall Heat Flux (Experimenal Study),' Trans. JSRAE, Vol. 19, pp. 13-22
  9. Maxwell. J. C., 1954, 'A Treatise on Electricity and Magnetism (3rd Edn),' Vol. 1. pp. 440-441. Dover, New York
  10. Vand, V., 1945, 'Theory of Viscosity of Concentrated Suspensions,' Nature. Vol. 155, pp. 364-365
  11. Gnielinski, V., 1976, 'New Equations for Heat and Mass Transfer in Turbulent Pipe and Channel Flow,' Int. Chem. Eng, Vol. 16, pp. 359-368
  12. Ng, K. S., Hartnett, J. P., and Tung, T. T., 1977, 'Heat Transfer of Concentrated Drag Reducing Viscoelastic Polyacrylamide Solutions,' Prepr. AIChE Pap., Heat Transfer Coni, 17th, pp. 74
  13. Bird, R. B., Armstrong, R. C., and Hassager. O., 1977, 'Dynamics of Polymeric Liquids,' Vo,. 1. Wiley, New York
  14. Bird, R. B., Stewart, W. E., and Lightfoot, E. N.. 1960, 'Transport Phenomena,' Wiley, New York
  15. Mizushina, T., Ito, R, Kuriwake, K, and Yahikazawa, K, 1967, 'Boundary Layer Heat Transfer in a Circular Tube to Newtonian and non-Newtonian fluids,' Kagaku Kogaku, Vol. 31, pp. 250