Fundamental study of evaporation model in micron pore

摘要

As the demand for high performance small electronic devices has increased, heat removalfrom these devices for space use is approaching critical limits. A heat pipe is a promisingdevice to enhance the heat removal performance due to the phase change phenomena forspace thermal management system. Even though a heat pipe has a big potential to removethe thermal energy from a high heat flux source, the heat removal performance of heatpipes cannot be predicted well since the first principle of evaporation has not beenestablished. The purpose of this study is to establish a method to apply the evaporationmodel based on the statistical rate theory for engineering application includingvapor-liquid-structure intermolecular effect. The evaporation model is applied to the heatpipe performance analysis through a pressure balance and an energy balance in the loopheat pipe.