ケーブルインコンジット形強制冷却超電導導体の熱伝達特性

概要

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Heat transfer characteristics of a cable-in-conduit conductor are measured for the Reynolds numbers of 1000-6000. Heat transfer coefficients were estimated by the transient temperatures at the inlet and outlet of the conduit, and these measured values were used as boundary conditions in a heat transfer simulation. In this way, the heat transition simulations were used to estimate the heat transfer coefficients. The Reynolds numbers of our experiments spanned the laminar and turbulent flow regimes. Our estimated heat transfer coefficients indicate, however, that heat transfer over this flow range is similar to heat transfer in te turbulent flow regime, as expressed by the Dittus-Boelter correlation. Our estimated heat transfer coefficients were about 25% higher than those determined using the Dittus-Boelter correlation.
社団法人日本機械学会の論文
1994-09-25