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- 저자 : Juozas Gudzinskas (검색결과 1 건)
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Effect of liquid drainage on heat transfer from a heated surface to flow of aqueous foam
Tadas Zdankus,Rolandas Jonynas,Martynas Gylys,Juozas Gudzinskas,Jurgita Cerneckiene 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.4
According to global studies, application of macro aqueous foam flow as a coolant seems promising and complex at the same time. Research of the heat transfer between a heated horizontal flat surface at the bottom of the channel and a longitudinal flow of aqueous foam was performed in this investigation. The distribution of the foam temperature in various cross-sections along the heated surface was found experimentally. A significant change in temperature was observed only in the bottom 1/4 part of the cross-section. The liquid drained from foam and formed a moving film which covered the heated surface. The inflow of lower temperature liquid into the film of drained liquid inhibited the intensive increase in film temperature. This influenced the character of cooling intensity of the heated surface. Analytically obtained formulas to calculate the amount of liquid draining from the foam and the developed methodology were verified in the experimental research.
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