高性能蒸発面に関する基礎的研究

概要

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High performance evaporating surfaces having parallel grooves in a small temperature difference region have been investigated fundamentally for a utilization of a waste energy or new energy resources like OTEC. To clarify the evaporation mechanism from a thin liquid film near a contact point between the liquid and the groove's wall, the shapes of the liquid film surfaces in the grooves having various side wall angles were measured by a holographic interferometry and other optical methods. The heat transfer performances of the grooved surfaces were analyzed by using the measured contact angle and compared with the expeimental results. From these consideration, it is concluded that the grooved surface having a right side wall angle shows the best heat transfer performance among the various surfaces having same groove pitch in the degree of wall superheat below 1.5 deg. and also shown that the optimum groove width exists.
一般社団法人日本機械学会の論文
1984-03-28