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Open Access Nano Express

Improvement on thermal performance of a disk-shaped miniature heat pipe with nanofluid

Tsung-Han Tsai1, Hsin-Tang Chien2 and Ping-Hei Chen1*

Author Affiliations

1 Department of Mechanical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan

2 Microsystems Technology Division, Industry Technology Research Institute, No. 31 Gongye 2nd Rd., Annan District, Tainan, 70955, Taiwan

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Nanoscale Research Letters 2011, 6:590  doi:10.1186/1556-276X-6-590

Published: 14 November 2011

Abstract

The present study aims to investigate the effect of suspended nanoparticles in base fluids, namely nanofluids, on the thermal resistance of a disk-shaped miniature heat pipe [DMHP]. In this study, two types of nanoparticles, gold and carbon, in aqueous solution are used respectively. An experimental system was set up to measure the thermal resistance of the DMHP with both nanofluids and deionized [DI] water as the working medium. The measured results show that the thermal resistance of DMHP varies with the charge volume and the type of working medium. At the same charge volume, a significant reduction in thermal resistance of DMHP can be found if nanofluid is used instead of DI water.

Keywords:
heat pipe; heat spreader; electronic packaging; nanofluid