Abstract

本報告は超臨界圧ボイラ水壁管における内面スケールの熱伝導率を半円周加熱面を用いた超臨界圧水の管内強制対流条件下で測定したものである.スケール熱伝導率の算出は管外面熱流束およびスケールの円周方向厚さ分布を考慮した管壁温度分布解析に基づいた.その結果,従来明確にされていなかった超臨界圧ボイラ水壁管のスケール熱伝導率を流体圧力280ata,流体温度200~400℃の範囲で明らかにした.

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