Currently, the thermal management of microelectromechanical systems (MEMS) has become a challenge. In the present research, a micro pulsating heat pipe (MPHP) with a hydraulic diameter of 508 μm, is experimented. The thermal performance of the MPHP in both the transient and steady conditions, the effects of the working fluid (water, silver nanofluid, and ferrofluid), heating power (4, 8, 12, 16, 20, 24, and 28 W), charging ratio (20, 40, 60, and 80%), inclination angle (0 deg, 25 deg, 45 deg, 75 deg, and 90 deg relative to horizontal axis), and the application of magnetic field, are investigated and thoroughly discussed. The experimental results show that the optimum charging ratio for water is 40%, while this optimum for nanofluids is 60%. In most of situations, the nanofluid charged MPHPs have a lower thermal resistance relative to the water charged ones. For ferrofluid charged MPHP, the application of a magnetic field substantially reduces the thermal resistance. This study proposes an outstanding technique for the thermal management of electronics.
Promising Technology for Electronic Cooling: Nanofluidic Micro Pulsating Heat Pipes
School of Mechanical Engineering,
Contributed by the Electronic and Photonic Packaging Division of ASME for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received July 13, 2012; final manuscript received January 21, 2013; published online March 28, 2013. Assoc. Editor: Siddharth Bhopte.
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Jahani, K., Mohammadi, M., Shafii, M. B., and Shiee, Z. (March 28, 2013). "Promising Technology for Electronic Cooling: Nanofluidic Micro Pulsating Heat Pipes." ASME. J. Electron. Packag. June 2013; 135(2): 021005. https://doi.org/10.1115/1.4023847
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