554. ナトリウム-アルゴン垂直上昇2相流のボイド率と熱伝達率(昭和46年学協会刊行物掲載論文再録集)

概要

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The void fraction in a vertical upward two-phase flow of Na-Ar was measured using electro-magnetic flow meters and γ-ray attenuation. It was found that with a flow pattern of bubbly flow, the statistical error induced in measurements of void fraction was slightly greater when using γ-ray attenuation as compared to electro-magnetic flow meters, while with slug flow electro-magnetic flow meters method were quite incorrect. Measurements were also made on the heat transfer coefficient of Na-Ar two-phase flow with uniform heat flux. The addition of a small quantity of the injected Ar decreased the heat transfer coefficient, but upon further increase of the gas content the coefficient increased after passing a minimum value.
独立行政法人海上技術安全研究所の論文
1972-02-28