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윤두호,오철,윤석훈,Yoon, D.H.,Oh, C.,Yoon, S.H. 한국마린엔지니어링학회 2000 한국마린엔지니어링학회지 Vol.24 No.5
In this paper, experiments investigating the high-temperature region heat transfer coefficients for the spray cooling of hot flat plates were performed by down spray water using flat spray nozzles. The heat transfer surface is made of copper and is 100mm in length and 40mm in width and 15mm in thickness. The experimental condition of spray are as follows: temperatures of the water droplets are T=20~$80^{\circ}C$ and droplets volume fluxes are D=0.001565~0.010438$m^3/m^2s$. Next, correlating equations for the heat transfer characteristics of spray cooling in the high temperature region are developed from the effects of droplets volume flux and the surface temperature of heat transfer plate.
고온 열전달면의 각도에 따른 분무냉각 특성에 관한 연구
윤두호,오철,윤석훈,Yoon, D.H.,Oh, C.,Yoon, S.H. 한국마린엔지니어링학회 2002 한국마린엔지니어링학회지 Vol.26 No.3
An experimental study of heat transfer from hot flat surface to water sprays was conducted in high temperature region. Heat transfer measurements for hot flat surface were made by 4 sheathed C-A thermocouples. Droplets volume flux were also measured-independently at a position in spray field. The test conditions included variations in droplets volume flux, subcooling of cooling water of $1.565\times10^{-3} to 14.089\times10^{-3}m^3/m^2s and 80 to $20^{\circ}C$ respectively. The effects of inclination angle on heat transfer were investigated and changes in inclination angle of hot flat surface affected heat transfer coefficients of high temperature region.