• Title/Summary/Keyword: 초소형이상써몬싸이폰

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Effect of a Thin Wire Insert on the Bubble Rise in a Miniature Tow-Phase Closed Thermosyphon (소형 밀폐형 이상 열싸이펀에서 삽입 세선이 기포상승에 미치는 영향)

  • 김원태;이윤표
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.8 no.1
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    • pp.99-109
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    • 1996
  • Experimental investigations are carried out for the characteristics of bubble rise in the Miniature Two-Phase closed Thermosyphon(MTPCT) with a thin wire insert. The working fluids applied as experimental media are of three kinds: water, methanol, and ethanol. The effects of combination of the inclination with diametric ratio $\alpha$(=d$_{0}$/D$_{I}$) on rising velocity of a large bubble in the thermosyphon are explicitly analyzed. The realm of a movable bubble and the critical value of $\alpha$ are iteratively pursued to interpret the region Figures-of-Break, rooted in the governing physics relations, according to the application of working fluid. Experimental results are compared with those of analysis and critical ranges for $\alpha$ and D$_{I}$ were ascertained from comparisons.isons.

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