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Evaporative Heat Transfer Characteristics of Droplet on Oxi-nitriding Surface
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  • Journal title : Journal of ILASS-Korea
  • Volume 21, Issue 1,  2016, pp.53-57
  • Publisher : Institute for Liquid Atomization and Spray Systems-Korea
  • DOI : 10.15435/JILASSKR.2016.21.1.53
 Title & Authors
Evaporative Heat Transfer Characteristics of Droplet on Oxi-nitriding Surface
Kim, Dae Yun; Lee, Seong Hyuk;
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The present study aims to experimentally investigate the evaporative heat transfer characteristics of Oxi-nitriding SPCC surface. Moreover, the heat transfer coefficient was examined with respect to surface temperature during droplet evaporation. In fact, the nitriding surface showed significant enhancement for anticorrosion performance compared to bare SPCC surface but the thermal resistance also increased due to the formation of compound layer. From the experimental results, the evaporative behavior of sessile droplet on nitriding surface showed similar tendency with the bare surface. Total evaporation time of sessile droplet on the nitriding surface was delayed less than 5%. The difference in heat transfer coefficient increased with the surface temperature, and the maximum difference was estimated to be around 11% at surface. Thus, this nitriding surface treatment method could be useful for seawater heat exchanger industries.
Droplet;Evaporation;Heat transfer;Oxi-nitriding;
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