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Evaporation Cooling of Droplet due to Surface Roughness  

방창훈 (경북전문대학 소방안전관리과)
권진순 (태산LCD)
예용택 (경일대학교 기계공학부)
Publication Information
Journal of the Korean Society of Safety / v.18, no.3, 2003 , pp. 29-33 More about this Journal
Abstract
The objective of the present work is to examine evaporation cooling of droplet due to surface roughness on a heated surface. The surface temperatures varied from 80-$160^{\circ}C$ on aluminum alloy (AL 2024) md surface roughness was 0.l8$\mu\textrm{m}$ 1.36$\mu\textrm{m}$. The results are as follows; Regardless of surface roughness, as droplet diameter is bigger, the in-depth temperature of solid decreases and evaporation time increases. In the case of same initial temperature on the heated surface, as droplet diameter is smaller and small surface roughness is bigger, evaporation time decreases and time averaged heat flux increases.
Keywords
droplet; surface roughness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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