| Effects of the Sintered Wick Characteristics on the Heat Transport Limitations of the Heat Pipes |
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Keun-Bae Kim, Yoo Kim |
1KARI
2CNU |
| 소결윅 특성이 히트파이프의 열수송 한계에 미치는 영향 |
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김근배, 김유 |
1한국항공우주연구원
2충남대학교 |
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| Abstract |
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Experimental studies of the cylindrical sintered-copper wick heat pipes were carried out to investigate the capillary heat transfer characteristics. Six models of the sintered-copper wick heat pipes were manufactured and tested to evaluate the heat transport limitations and the thermal characteristics. Also the performance of the heat pipes was analyzed theoretically and compared with the test results. The heat pipe models are divided into two sintered-wick groups and the nominal particle sizes are $180{mu}m$(wick #1) and $200{mu}m$(wick #2) respectively The experimental results showed that, the porosity of wick #1 was higher than that of wick #2, and also the wick #1 was generally superior than the wick #2 for the heat transport capability. The maximum heat transport rates were increased as the wick thicknesses and the vapor temperatures were increased. |
| Key Words:
Sintered-copper Wick, Heat Pipe, Capillary Radius, Porosity, Permeability, Capillary Limitation |
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