周期運動をする凝縮器の伝熱性能に関する研究 : 鉛直らせん溝付管凝縮器の場合

概要

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The condensation of Rll vapor on a vertical fluted tube with drainage systems in three modes (heave, sway and roll) of sinusoidal vibration were studied experimentally in order to evaluate the effect of motion to the heat transfer performance for a moving ocean platform such as OTEC plant. The drainage systems of the tube used were two kinds of gutters, spiral-shaped and straight. The effects of heave and sway motion to the heat transfer performance were not detected at the vibrating force up to 0.128g. However the roll motion enhanced the heat transfer performance as the amplitude or frequency became larger. These effects were recognised when the vibrating force became 0.035g or larger depending on the amplitude and 0.097g or larger depending on the frequency.
1991-06-25