설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제24권1호
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  • Pages.9-15
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  • 2012
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
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로터리 제습기의 단순 해석 모델 개발-II. 유용도 상관식

Development of a Simple Analytical Model for Desiccant Wheels-II. Effectiveness Correlations

  • 김동선 (충주대학교 기계공학과)
  • Kim, Dong-Seon (Department of Mechanical Engineering, Chungju National University)
  • 투고 : 2011.08.23
  • 심사 : 2011.10.31
  • 발행 : 2012.01.10
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초록

An effectiveness model has been developed from the approximate analytical solution of a rotary desiccant wheel. The resulting equations clearly show that the maximum air temperature and humidity differences are two independent driving forces commonly acting in the heat and mass transfer processes. Comparison with the numerical model from the preceeding study revealed that the effectiveness model could make realistic predictions roughly with 10% uncertainty. The model may be useful for the rough design and analysis of desiccant evaporative cooling systems.

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참고문헌

  1. Holman, J. P., 1997, Heat Transfer, 8th ed. McGraw-Hill, New York.
  2. Incropera, F. P., Dewitt, D. P., Bergman, T. L., and Lavine, A. S., 2007, Fundamentals of heat and mass transfer, 6th ed., John Wiley and Sons, New York.
  3. Van Den Bulck, E., Mitchell, J. W., and Klein, S. A., 1985, Design theory for rotary heat and mass exchangers-II. Effectiveness number of transfer units method for rotary heat and mass exchangers with infinite transfer coefficients, Int. J. Heat Mass Tran., Vol. 28, pp. 1575-1586. https://doi.org/10.1016/0017-9310(85)90259-5
  4. Simonson, C. J. and Besant, R. W., 1999, Energy wheel effectiveness：part II-Correlations, Int. J. Heat Mass Tran., Vol. 42, pp. 2171-2185. https://doi.org/10.1016/S0017-9310(98)00327-5
  5. Sphaier, L. A. and Worek, W. M., 2009, Parametric analysis of heat and mass transfer regenerators using a generalized effectiveness- NTU method, Int. J. Heat Mass Tran., Vol. 52, pp. 2265-2272. https://doi.org/10.1016/j.ijheatmasstransfer.2008.11.017
  6. Kim, D. S., Choi, Y. D., and Lee, D. Y., 2011, Development of a simple analytical model for desiccant wheels-I. Approximate solution of the governing equations, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 23, No. 12, pp. 821-827. https://doi.org/10.6110/KJACR.2011.23.12.821
  7. Lee, D. Y., Lee, G., and Kim, M. S., 2007, A Proposal for new definition of performance indices of a desiccant rotor, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 19, No. 7, pp. 537-544.
  8. Lee, G., Lee, D. Y., Kim, M. S., 2004, Development of a linearized model and verification of the exact solution for the analysis of a desiccant dehumidifier, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 16, No. 9, pp. 811-819.
  9. Lee, G., Kim, M. S., and Lee, D. Y., 2005, Derivation and analysis of dimensionless parameters dominating the dehumidification characteristics of a desiccant rotor, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 17, No. 7, pp. 611-619.
  10. Zhang, L. Z., 2010, An analytical solution for heat mass transfer in a hollow fiber membrane based air-to-air heat mass exchanger, J. Memb. Sci., Vol. 360, pp. 217-225. https://doi.org/10.1016/j.memsci.2010.05.015