低圧・低質量流束条件下における周方向非均一加熱管の限界熱流束 : 傾斜上昇流の場合(<小特集>究極の除熱性能を目指して)

概要

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In actual boiling two-phase flow systems, water tubes are suffered from a circumferentially non-uniformed heat flux under various tube inclinations. However, many investigations of thermal-fluid characteristics including the Critical Heat Flux (CHF) were conducted under simple condition, i.e. uniform heat flux and vertical upward flow condition. In this series of investigation, the non-uniformly heating along the circumferential direction was realized by using the Joule heating of eccentric tube. The experimental investigation on the CHF was conducted with 900mm and 1800mm in heated length under 45 degree inclined. The CHF characteristics of the non-uniformly heated tube were drastically different in the periphery location of the maximum local heat flux and the heating length.
2009-10-25