Experimental study on the effect of surface conditions on evaporation of sprayed liquid droplet

El Sayed R. Negeed, N. Ishihara, K. Tagashira, S. Hidaka, M. Kohno, Y. Takata

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The present study investigates experimentally the effects of thermal properties of the hot surface and droplet characteristics on the droplet evaporation. Cylindrical blocks made of Stainless Steel, Aluminum and Brass with different degrees of surface roughness were used. The droplet diameter and velocity were controlled independently. The behavior of droplet during the collision with hot surface was observed with a high-speed camera. The results presented the effect of the thermal properties of the hot surface, droplet Weber number, droplet velocity, droplet size, hot surface conditions; surface superheat and degree of surface roughness on the solid-liquid contact time and the maximum spread of droplet over the surface. Empirical correlations have been deduced describing the relationship between the hydrodynamic characteristics of an individual droplet impinging on a heated surface and concealing the affecting parameters in such process. Also, the comparison between the current results and the results due to others investigators shows good agreement in which the difference between them ranged from 5% to 25%.

Original languageEnglish
Pages (from-to)2250-2271
Number of pages22
JournalInternational Journal of Thermal Sciences
Volume49
Issue number12
DOIs
Publication statusPublished - Dec 1 2010

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Engineering(all)

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