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자료유형
학술저널
저자정보
저널정보
대한기계학회 Journal of Mechanical Science and Technology KSME International Journal Vol.17 No.3
발행연도
2003.3
수록면
422 - 428 (7page)

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This study concerns the performance of the heat transfer of the thermosyphons having 60, 70, 80, 90 axial internal low-fins in which boiling and condensation occurr. Water, HCFC-141 b and CFC-11 have been used as the working fluids. The operating temperature, the liquid charge ratio and the inclination angle of thermosyphons have been used as the experimental parameters. The heat flux and heat transfer coefficient at the condenser are estimated from experimental results. The experimental results have been assessed and compared with existing theories. As a result of the experimental investigation, it was found that the maximum heat flow rate in the thermosyphons is dependent upon the liquid charge ratio and inclination angle. A relatively high rate of heat transfer has been achieved by the thermosyphon with axial internal low-fins. The inclination of a thermosyphon has a notable influence on the condensation. In addition, the overall heat transfer coefficients and the characteristics at the operating temperature are obtained for the practical applications.

목차

Abstract

1.Introduction

2.Description of Experimental Thermosyphons

3.Experimental Apparatus and Procedure

4.Results and Discussion

5.Conclusions

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