G210 マイクロチャネルにおける単相強制対流熱伝達に関する実験的研究(オーガナイズドセッション11 : マイクロ熱流体システム)

概要

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In the present research, heat transfer characteristics of a micro-channel were experimentally investigated. The size of the micro-channel used in this study was 52.9 mm in inner diameter and about 30 mm in length. This channel was made of stainless steel and water was used as a test liquid. The experiment was performed in the range of Re = 120〜260. Special attention was paid to reduce heat loss from the micro-channel system to the surroundings and to attain good accuracy in this experiment. The experimental results of Nusselt number obtained for the micro-channel were obviously smaller than those for conventional size tubes. It was also confirmed that Nusselt number was decreased for decreasing Reynolds number. This experimental result indicate that special thermo-fluid phenomena concerning with the micro-channel appears in this experimental condition.
2001-11-03