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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2003.10
- 수록면
- 1,533 - 1,542 (10page)
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In the present study, the characteristics of pressure oscillation and heat transfer performance in an oscillating capillary tube heat pipe were experimentally investigated with respect to the heat flux, the charging ratio of working fluid, and the inclination angle to the horizontal orientation. The experimental results showed that the frequency of pressure oscillation was between 0.1 Hz and 1.5 Hz at the charging ratio of 40 vol. %. The saturation pressure of working fluid in the oscillating capillary tube heat pipe increased as the heat flux was increased. Also. as the charging ratio of working fluid was increased. the amplitude of pressure oscillation increased. When the pressure waves were symmetric sinusoidal waves at the charging ratios of 40 vol.% and 60 vol.%, the heat transfer performance was improved. At the charging ratios of 20 vol.% and 80 vol.%. the waveforms of pressure oscillation were more complicated. and the heat transfer performance reduced. At the charging ratio of 40 vol.%, the heat transfer performance of the OCHP was at the best when the inclination angle was 90°. the pressure wave was a sinusoidal waveform, the pressure difference was at the least. the oscillation amplitude was at the least. and the frequency of pressure oscillation was the highest.
목차
Abstract
1.Introduction
2.Experimental Apparatus and Methods
3.Experimental Results and Consideration
4.Conclusions
Acknowledgment
References
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