Analysis and experiment of the water-cooling radiator

• Main Authors: LiWang-Cheng, 李汪昌
• Other Authors: Shueei-Muh Lin
• Format: Others
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/82664107041318470020

碩士 === 崑山科技大學 === 機械工程研究所 === 93 === In this paper, an ultra-thin water-cooling radiator for cooling the CPU of a notebook is designed. This principle of the cooling system design is to impinge water jet directly on the CPU (heat source) for high performance cooling. The water flows radially through the fins. In proceeding of heat transfer, the temperature difference between the water and the heat source is kept even. The STAR-CD 3D software is used to analyze the influence of parameters on the heat transfer of the system. Based on the analysis, one can get the optimum design of cooling radiator. Beside the numerical simulation, an experiment is made to verify the numerical results. It is found that the numerical and experimental results are very consistent. The heat transfer of the commercial cooling equipment such as the heat pipe- sink-fan unit used in the notebook is almost 30 W. Moreover, the fan is associated with a noise. The size of the proposed water-cooling radiator is about less than 40 mm in diameter and less than 10 mm in thickness. The heat transfer of the water-cooling radiator is more than 60W while maintaining the CPU temperature at less than 60℃. Moreover, replacing the noisy fan by a small pump, the noise will be greatly decreased.