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Heat Pipe Science and Technology, An International Journal

Publication de 4  numéros par an

ISSN Imprimer: 2151-7975

ISSN En ligne: 2151-7991

ULTRA-THIN HIGH PERFORMANCE HEAT PIPE FOR THIN AND LIGHT PORTABLE COMPUTING DEVICES

Volume 5, Numéro 1-4, 2014, pp. 597-602
DOI: 10.1615/HeatPipeScieTech.v5.i1-4.690
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RÉSUMÉ

Advance in computing technology towards miniature architecture has created a significant challenge task for cooling of the high-powered electronic components in a limited space available. Particularly, with the increasing trend of consumer use of portable smart devices like phones, tablets and thin and light computer so called ultrabook − all these devices has very limited space for cooling. Traditional heat pipe maybe not applicable due to large size, therefore, it is essential to develop new heat pipe which must be not only thinner, but also higher in thermal performance. This paper shows a detail development of ultra-thin heat pipes, as thin as 1mm or less. In order to improve and characterize the heat pipe thermal performance, various parameters were investigated such as wick structures, shapes, sizes and positioning; heat pipe shape, length and thickness; operating temperatures; water-surface wettability and operation against gravity. Maximum heat transfer and thermal resistance for various heat pipe shapes and sizes are presented for thin heat pipe thickness ranging from 0.8 to 2mm and heat transfer capability ranging from 5 to 50W. Discussion on the design and thermal performance and application of these thin heat pipes in thin and light portable computing devices such as smartphone, tablets and ultrabook.

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