水中に吹き込まれた空気ほうが熱伝達に及ぼす影響(第1報)

概要

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On the heat transfer to boiling liquids, many investigators have adopted the αV. S. Δθ expression (α is coefficient of heat transfer ; Δθ is temperature difference between the heating surface and the liquid) as in the case of free convection. We pointed out already that the driving force caused by the stirring motion of vapour bubbles dominated that by the buoyancy due to the change of density of the liquid at the nucleate boiling. The objects of this investigation is to study the effect of stirring motion of vapour bubbles. We used the horizontal heating surface of 100 mm in diameter and injected the air into water from a hole of 1 mm in diamerter. We clarified the effect of the injection rates, the position of air injection, etc. for a series of the heat flux and the height of water level.
一般社団法人日本機械学会の論文
1953-08-10