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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.
오철(Oh C),이영호(Lee Y. H),국승기(Cook S. G),전승환(Jun S. W) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
The following instructions give you basic guidelines for preparing camera-ready papers for the Journal of the KOSME. We recommend you to use the HWP word processor.
원관 내에 있어서의 휜 배열에 따른 압력 강하 및 유체 유동 특성에 관한 연구
오철(C. Oh),황용(Y. Hwang),배성우(S. W. Bae),김명환(M. h. KIm),윤석훈(S. H. Yoon) 한국해양대학교 해사산업연구소 2003 海事産業硏究所論文集 Vol.14 No.-
This study was experimentally performed to investigate the pressure drop and fluid flow characteristics along circular tube. The experiments were carried out for a various of parameters, such as operating water velocity and kind of inner pin arrangement. The pressure drop and fluid flow characteristics were observed and measured. It was found that the experimental parameters gave a great influence on the pressure drop and fluid flow characteristics.
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.
해수 동결담수화장치 개발을 위한 해수동결에 관한 실험적 연구
박대식,김명환,오철,Park, D.S.,Kim, M.H.,Oh, C. 한국마린엔지니어링학회 2001 한국마린엔지니어링학회지 Vol.25 No.6
This study was experimentally performed to investigate sea water freezing behavior along parallel cooled plate with bubbly flow The experiments were carried out for a variety of parameter, such as sea water velocity, air-bubble flow rate, and cooled-plate temperature. The shape of freezing layer, freezing rate and salinity of frozen layer were observed and measured. It was found that the experimental parameters gave a great influence on the freezing rate and the salinity of the frozen layer.