Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지

The Evaporation Shape of Deposited Droplet on the Hot Surface

고온표면에 부착된 액적의 증발형상 변화

  • Bang Chang-Hoon (Department of Fire Protection Engineering, Kyungpook College)
  • 방창훈 (경북전문대학 소방안전관리과)
  • Published : 2005.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

The objective of the present work is to examine the evaporation shape of deposited droplet on the hot surface. this paper performed the experiments as following conditions: (a) the surface temperature is within the range between $80^{\circ}C$ and $95^{\circ}C$ in the conduction and radiation, (b) droplet diameter is 3.0mm. The results are as follows; while droplet evaporates, droplet's radius is kept changelessly to $70\%$ evaporation time and droplet's shape is kept changelessly after. In case use Constant radius model, about $10\%$ is appearing high than value that time-averaged heat flux applies Inverse heat conduction.

Keywords

References

  1. Dawson, H., Di Marzo, M., 'An Experimental Study of Multiple Droplet Evaporative Cooling', NIST-GCR 93-624, 1993
  2. Zhang, N., Yang, W. J., 'Natural Convection in Evaporating Minute Drops', J. of Heat Transfer, Vol. 104, pp. 656-662, 1982 https://doi.org/10.1115/1.3245182
  3. Sadhal, S. S., Plesset, M. S., ' Effect of Solid Properties and Contact Angle in Dropwise Condensation and Evaporation', J. of Heat Transfer, Vol. 101, pp. 48-54, 1979 https://doi.org/10.1115/1.3450934
  4. Riu, K. J., Bang, C. H. and Kim, J. S., Evaporation Cooling of Single Droplet on a Heated Solid Surface, KSME(B), Vol. 25, No. 6, pp. 845-852, 2001
  5. Chandra, S., DiMarzo, M., Qiao, Y. M., Tartarini, P., 'Effect of solid-liquid Contact Angle on Droplet Evaporation', NIST-GCR-96-687, 1995