| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
In order to clarify fundamental characteristics of evaporative heat transfer in the wick of a loop heat pipe, an experimental study has been performed, in which the upper surface of a wick is heated by a heated square cylinder made of copper in a transparent case for visual observation. As the results, the effects of particle size and material of the sintered metal (stainless and bronze), and the effect of working fluid (ethanol and water) on the evaporative heat transfer were clarified. A numerical analysis has also been made assuming that the wick is saturated with liquid, and several experimental tendencies were explained by the analysis. In addition, a new geometry of wick and heated plate was proposed, and its performance was compared with that of conventional type experimentally.
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