10503 気液二相流の凝縮熱伝達に及ぼす気液接触面積変化と非凝縮性ガスの影響(Visual Presentation Contest)

概要

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In this research, the influence on the condensation heat transfer according to an injection method of steam, the transition of gas-liquid contact area, temperature conditions, and a mixing non-condensed gases with the condensation of the single steam bubble that rises continuously in water is observed with a high-speed camera. And, the condensation heat transfer coefficient was evaluated by adding the image data processing to the obtained observation results. It was shown that the bubble of diameter about 4〜7mm completed condensation comparatively linear between 3〜5ms and disappeared. And, it was shown that the condensation heat transfer coefficient was calculated from the obtained transition of gas-liquid contact area and became about 10^5.
一般社団法人日本機械学会の論文
2005-03-17