Affiliation:
1. Mepco Schlenk Engineering College
Abstract
. High thermal conductivity of copper and carbon nano tubes are used in variety of thermal management applications to improve cooling performance. Deposition of copper over these nanotubes increases the hydrophilic wicking surface and increased conductivity and stiffness. The CNT coating and micro patterning are able to provide significant performance enhancements by reducing the surface superheat up to 72% . Conductivity can be increased further by wetting the wicks with conductive fluids. The nanofluids are of great use in this area. Ceramic nanofluid has a very good stability and silver nanofluid has a very good thermal conductivity and hence their mixture is of great use in high temperature applications. Adding of ceramics also ensure the stability of nanofluid suspensions and prevent coagulation. This paper suggests wetting the wicks with ceramic and silver nano fluid mixture in the ratio of 1:5 to increase conductivity and stability for high temperature applications further.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Incropera FP, De Witt DP. Fundamentals of heat and mass transfer. 5thEd. New York, John Wiley & Sons.
2. Zhuang J, Zhang H. Heat pipe technology and engineering application. Beijing, China: Chemical Industry Publishing House; 2000. Chapter (English translated).
3. Holman JP. Heat transfer. 9th ed. New York, USA: McGraw-Hill; 2002. p.293.
4. Ku, J., Recent Advances in Capillary Pumped Loop Technology, AIAA Paper No. 97-3870, (1997).
5. Dunbar, N., ALTID Laser Heat Thermal Control – Design and Development of a Two-Phase Heat Transport System for Practical Applications, SAE Paper No. 961561, (1996).