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Characteristics for Nanofluid Droplet Evaporation on Heated Surface at Boiling Temperature of Base Liquid
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  • Journal title : Journal of ILASS-Korea
  • Volume 20, Issue 4,  2015, pp.236-240
  • Publisher : Institute for Liquid Atomization and Spray Systems-Korea
  • DOI : 10.15435/JILASSKR.2015.20.4.236
 Title & Authors
Characteristics for Nanofluid Droplet Evaporation on Heated Surface at Boiling Temperature of Base Liquid
Kim, Dae Yun; Jung, Jung-Yeul; Lee, Seong Hyuk;
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 Abstract
This study aims to experimentally investigate the evaporation characteristics of nanofluid droplet on heated surface at boiling temperature of DI-water. In particular, textured surface was used to examine the effect of wettability on evaporation. At the initial stage of evaporation process, dynamic contact angle (DCA) of nanofluid droplet with 0.01 vol.% concentration on textured surface rapidly increased over its equilibrium contact angle by generated large bubble inside the droplet due to lower wettability. However, contact angle of nanofluid droplet with higher concentration on textured surface decreased with surface tension. In addition, total evaporation time of droplet on textured surface was considerably delayed due to reduction of contact area between droplet and solid surface. Thus, evaporation characteristics were highly affected by the nanofluid concentration and surface wettability.
 Keywords
Nanofluid;Droplet;Evaporation;Heated surface;Boiling temperature;
 Language
Korean
 Cited by
1.
Dynamic wetting and heat transfer characteristics of a liquid droplet impinging on heated textured surfaces, International Journal of Heat and Mass Transfer, 2016, 97, 308  crossref(new windwow)
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