OS8-08 蒸気インジェクタ内の直接凝縮熱伝達に関する研究(第2報)(OS8 軽水炉・新型炉・核燃料サイクル)

概要

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The characteristics and the performance limit of steam injector have been investigated. In the present paper, the disruption condition of a 5mm diameter water jet that flows into a pipe of 7, 10 or 20mm diameter coaxially where vapor flow existed and the heat transfer coefficient of vapor condensation on the jet surface were examined. The heat transport to the radial direction in the jet was a little stronger than that of the turbulent flow in a pipe. The condensation heat transfer coefficient was a little larger than that of the turbulent flow in a pipe. It was close to the condensation heat transfer coefficient of a vapor bubble in stagnant water. If the Kelvin-Helmholtz instability wave length was used as the jet disruption criterion, it predicted the jet disruption conservatively.
社団法人日本機械学会の論文
2005-06-28