DOI QR코드

DOI QR Code

Properties of the Frost Layer Formed on a Cold Flat Surface

냉각평판에 형성된 서리층의 물성치

  • 김성곤 (한양대학교 대학원 기계공학과) ;
  • 양동근 (한양대학교 대학원 기계공학과) ;
  • 이관수 (한양대학교 기계공학부)
  • Published : 2003.03.01

Abstract

This paper proposes dimensionless correlations predicting properties of the frost layer formed on a cold flat surface. Experiments are carried out to obtain the correlations with various environmental parameters such as air temperature, air velocity, absolute humidity, and cooling plate temperature. As a result, the frost properties (frost layer thickness, density, surface temperature, thermal conductivity) are correlated as a function of Reynolds number, Fourier number, absolute humidity and non-dimensional temperature by using a dimensional analysis. The correlations agree well with the previous and our experimental data within a maximum error of 10%, and are used to predict the frost properties in the following ranges: Reynolds number of 20216 to 53763, Fourier number of 0.1962 to 2.5128, absolute humidity of 3.22 to 8.47, and non-dimensional temperature of 0.125 to 0.5.

Keywords

References

  1. Schneider, H. W., 1978, 'Equation of the Growth Rate of Frost Forming on Cooled Surfaces,' Int. J. Heat Mass Transfer, Vol. 21, pp. 1019-1024 https://doi.org/10.1016/0017-9310(78)90098-4
  2. Lee, Y. B., Ryu, I. S. and Ro, S. T., 2002, 'The Effect of Environmental Parameters on Frost Formation on a Horizontal Cylinder,' Trans. of KSME, Vol. 26, No. 2, pp. 253-260
  3. Cremers, C. J. and Mehra, V. K., 1980, 'Frost Formation on Vertical Cylinders in Free Convection,' ASME J. Heat Transfer, Vol. 104, No. 1, pp. 3-7
  4. Sengupta, S., Sherif, S. A. and Wong, K. V., 1998, 'Empirical Heat Transfer and Frost Thickness Correlations during Frost Deposition on a Cylinder in Cross-Flow in the Transient Regime,' Int. J. Energy Res., Vol. 22, pp. 615-624 https://doi.org/10.1002/(SICI)1099-114X(19980610)22:7<615::AID-ER383>3.0.CO;2-L
  5. Ostin, R. and Andersson, S., 1991, 'Frost Growth Parameters in a Forced Air Stream,' Int. J. Heat Mass Transfer, Vol. 14, No. 4/5, pp. 1009-1017 https://doi.org/10.1016/0017-9310(91)90012-4
  6. Yonko, J. D. and Sepsy, C. F., 1967, 'An Investigation of the Thermal Conductivity of Frost while Forming on a Flat Horizontal Plate,' ASHRAE Trans., Vol.73, No. 2, pp. 1.1-1.11
  7. Tokura, I., Saito, H. and Kishinami, K., 1983, 'Study on Properties and Growth rate of Frost Layers on Cold Surfaces,' J. Heat Transfer, Vol. 105, pp. 895-901 https://doi.org/10.1115/1.3245679
  8. Gabriel Biguria and Leonard A. Wenzel, 1970, 'Measurement and Correlation of Water Frost Thermal Conductivity and Density,' I&EC Fundamentals, Vol. 9, No. 1, pp. 129-138 https://doi.org/10.1021/i160033a021
  9. Lee, K. S., Kim, Y. C. and Jhee, S., 2001, 'Correlation of Frost Properties Considering the Environmental Parameters over a Cold Flat Plate,' Trans. of KSME, Vol. 8, No. 25, pp. 1046-1052
  10. Hosoda, T. and Uzuhashi, H., 1967, 'Effects of Frost on the Heat Transfer Coefficient,' Hitachi review, Vol. 16, No. 6, pp. 254-259
  11. Lee, K. S., Lee, T. H. and Kim, W. S., 1994, 'Heat and Mass Transfer of Parallel Plate Heat Exchanger under Frosting Condition,' SAREK Journal, Vol. 6, No. 2, pp. 155-165
  12. Kline, S. J., 1985, 'The Purposes of Uncertainty Analysis,' ASME J. Fluid Engineering, Vol. 107, pp. 153-160 https://doi.org/10.1115/1.3242449
  13. Sahin, A. Z., 1991, 'Density of Frost Layer during the Crystal Growth Period,' The Arabian J. for Science and Engineering, Vol. 16, pp. 485-493
  14. Luer, A. and Beer, H., 2000, 'Frost Deposition in a Parallel Plate Channel under Laminar Flow Conditions,' Int. J. Therm. Sci., Vol. 39, pp. 85-95 https://doi.org/10.1016/S1290-0729(00)00193-8
  15. Sherif, S., A., Raju, S. P., and Padki, M. M., 1990, 'A Semi-Emperical Transient Method for Modeling Frost Formation on a Flat Plate,' ASHRAE Trans., Vol. 139, pp. 15-23
  16. Sahin, A., Z., 2000, 'Effective Thermal Conductivity of Frost During the Crystal Growth Period,' Int. J. Heat Mass Transfer, Vol. 43, pp. 539-553 https://doi.org/10.1016/S0017-9310(99)00162-3