The influence of geometry effects on the performance of heat pipe

• Main Authors: Wei-TingChen, 陳威廷
• Other Authors: Chen-I Hung
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/19361959340964730550

碩士 === 國立成功大學 === 機械工程學系碩博士班 === 98 === Heat sink components usually use heat pipe that achieved rapid cooling by the liquid-vapor phase change of work fluid in recent years. Heat pipe consists of three parts: (1) evaporator section, (2) adiabatic (transport) section and (3) condenser section. The work fluid achieved the boiling point in evaporator section when it absorbed heat. The resulting vapor pressure drives the vapor through the adiabatic section to the condenser, where the vapor condenses and releasing its latent heat of vaporization. Finally, the work fluid flowed back to evaporator section by the capillary repeatedly. We used CFD Package to simulate the dynamic situation of heat pipe that included liquid-vapor phase and porosity material in this research. Two different models that are based on the same material volume in business costs have been developed: one is at different hydraulic diameter, changing the shape of heat pipe. The other is at same hydraulic diameter, increasing the vapor chamber of heat pipe. The purpose of this study is to construct a practical analysis model for heat pipe. When the model is accomplished, it is helpful to the R＆D works of the electronic cooling industries.