Numerical simulation and experimental verification of a flat two-phase thermosyphon

作者：Zhang Ming; Liu Zhongliang^*; Ma Guoyuan; Cheng Shuiyuan

来源：Energy Conversion and Management, 2009, 50(4): 1095-1100.

DOI：10.1016/j.enconman.2008.12.001

• Two-phase thermosyphon
• Numerical simulation
• Electronics cooling

The flat two-phase thermosyphon is placed between the heat source and the heat sink, which can achieve the uniform heat flux distribution and improve the performance of heat sink. In this paper, a two-dimensional heat and mass transfer model for a disk-shaped flat two-phase thermosyphon is developed. By solving the equations of continuity, momentum and energy numerically, the vapor velocity and temperature distributions of the flat two-phase thermosyphon are obtained. An analysis is also carried out on the ability of flat two-phase thermosyphon to spread heat and remove hot spots. In order to observe boiling and condensation phenomena, a transparent flat two-phase thermosyphon is manufactured and studied experimentally, The experimental results are compared with numerical results, which verify the physical and mathematical model of the flat two-phase thermosyphon. In order to study the main factors affecting the axial thermal resistance of two-phase thermosyphon, the temperatures inside the flat two-phase thermosyphon are measured and analyzed.

• 出版日期2009-4
• 单位北京工业大学