Heat Transfer between an Individual Carbon Nanotube and Gas Environment in a Wide Knudsen Number Regime
Joint Authors
Wang, Hai-Dong
Liu, Jin-Hui
Zhang, Xing
Li, Tian-Yi
Zhang, Ru-Fan
Wei, Fei
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-12
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Applications of carbon nanotube (CNT) and graphene in thermal management have recently attracted significant attention.
However, the lack of efficient prediction formula for heat transfer coefficient between nanomaterials and gas environment limits the further development of this technique.
In this work, a kinetic model has been established to predict the heat transfer coefficient of an individual CNT in gas environment.
The heat dissipation around the CNT is governed by molecular collisions, and outside the collision layer, the heat conduction is dominant.
At nanoscales, the natural convection can be neglected.
In order to describe the intermolecular collisions around the CNT quantitatively, a correction factor 1/24 is introduced and agrees well with the experimental observation.
The prediction of the present model is in good agreement with our experimental results in free molecular regime.
Further, a maximum heat transfer coefficient occurs at a critical diameter of several nanometers, providing guidelines on the practical design of CNT-based heat spreaders.
American Psychological Association (APA)
Wang, Hai-Dong& Liu, Jin-Hui& Zhang, Xing& Li, Tian-Yi& Zhang, Ru-Fan& Wei, Fei. 2013. Heat Transfer between an Individual Carbon Nanotube and Gas Environment in a Wide Knudsen Number Regime. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1007341
Modern Language Association (MLA)
Wang, Hai-Dong…[et al.]. Heat Transfer between an Individual Carbon Nanotube and Gas Environment in a Wide Knudsen Number Regime. Journal of Nanomaterials No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1007341
American Medical Association (AMA)
Wang, Hai-Dong& Liu, Jin-Hui& Zhang, Xing& Li, Tian-Yi& Zhang, Ru-Fan& Wei, Fei. Heat Transfer between an Individual Carbon Nanotube and Gas Environment in a Wide Knudsen Number Regime. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1007341
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007341