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전기 다단 도금법을 이용한 물의 핵비등열전달 촉진 실험
조대관(Dae Gwan Cho),유승문(Seung-Mun You),이준식(Joon Sik Lee) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The experiments of boiling heat transfer were performed to investigate the boiling enhancement in<br/> saturated water by using multi-stage electroplated surface. In order to optimize the boiling performance,<br/> current flux and duration in multi-stage electroplating were varied. Current flux, 2 A/12cm2 and 0.33 A/cm2,<br/> and duration ranging from 15 second to 50 second are considered. The results showed that multi-stage electro<br/> plated surfaces generate enhancement of boiling parameters such as boiling incipient superheat, boiling heat<br/> transfer coefficient, and critical heat flux compared to plain surface. The SEM images of the coated surfaces<br/> were captured to examine the structure of porous surface, which provides the enhancement of boiling heat<br/> transfer.