착상 거동 해석을 위한 수치적 모텔

Numerical Model for the Analysis of Frosting Behavior

  • Lee, Kwan-Soo (School of Mechanical Engineering, Hanyang University) ;
  • Yang, Dong-Keun (Graduate School, Department of Mechanical Engineering, Hanyang University) ;
  • Jhee, Sung (Graduate School, Department of Mechanical Engineering, Hanyang University)
  • 발행 : 2002.03.01

초록

The integral boundary layer equation for the air side and the diffusion equation for the frost layer are numerically analyzed in order to predict the behavior of frost layer growth. The thickness and density of the frost layer obtained from the present study agree well with those of previous numerical results and experimental data with a maximum error of 13%. The characteristics of heat and mass transfer within the frost layer and the frost layer growth along the flow direction are investigated by performing numerical analysis. The effects of operating conditions on the frost layer growth are also examined.

키워드

참고문헌

  1. Hitachi Review v.16 no.6 Effects of frost on the heat transfer coefficient Hosoda, T.;Uzuhashi, H.
  2. J. Heat Transfer v.99 Study of frost properties correlating with frost formation types Hayashi, Y.;Aoki, A.;Adachi, S.;Hori, K.
  3. J. Heat Transfer v.97 Frost formation with varying environmental parameters Jones, B. W.;Parker, J. D.
  4. ASHRAE Trans. v.95 no.3218 Mass and heat transfer during frost growth Sami, S. M.;Duong, T.
  5. Int. J. Heat Mass Transfer v.40 no.18 A one-dimensional model for frost formation on a cold flat surface Lee, K. S;Kim, W. S.;Lee, T. H.
  6. ASHRAE Trans. no.2331 A numerical analysis of frost formation under forced convection Parish, H. C.;Sepsy, C. F.
  7. Heat Transfer Division v.139 A semi-empirical transient method for modeling frost formation on a flat plate Sherif, S. A.;Raju, S. P.;Padki, M. M.;Chan, A. B.
  8. Fundamentals of Heat and Mass Transfer (4th ed.) Incropera, F. P.;DeWitt, D. P.
  9. Korean Journal of Air-conditioning and Refrigeration Engineering v.6 no.2 Heat and mass transfer of parallel plate heat exchanger under frosting condition Lee, K. S.;Lee, T. H.;Kim, W. S.
  10. Korean Journal of KSME v.25 no.8 Correlations of frost properties considering the environmental parameters over a cold flat plate Lee, K. S.;Kim, Y. C.;Jhee, S.