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Thermal conductivity of carbon nanotube nanofluid—experimental and theoretical study

Walvekar, Rashmi and Ismail, Ahmad Faris and Khalid, Mohammad (2012) Thermal conductivity of carbon nanotube nanofluid—experimental and theoretical study. Heat Transfer—Asian Research, 41 (2). pp. 145-163. ISSN 1099-2871

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Abstract

In this work, thermal conductivity of carbon nanotubes' (CNTs) nanofluid is studied both experimentally and theoretically. CNT nanofluids were stabilized using gum arabic (GA). The concentration of CNTs was varied from 0.01–0.1 wt% while the concentration of GA was varied from 1–2.5 wt%, respectively. The effect of particle volume fraction and temperature on the thermal conductivity enhancement of the nanofluids was also studied. A simple thermal conductivity model which demonstrates the effect of diameter and aspect ratio of the CNTs and takes into account the effect of temperature on thermal conductivity enhancement is presented. Good agreement between experimental and estimated values proves that the proposed model can provide precise prediction of the thermal conductivity of fluid containing CNTs.

Item Type: Article (Journal)
Additional Information: 1743/29301
Uncontrolled Keywords: CNTs; thermal conductivity; nanofluid; theoretical model
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Depositing User: Prof Dr Ahmad Faris Ismail
Date Deposited: 15 Mar 2013 08:55
Last Modified: 15 Mar 2013 09:02
URI: http://irep.iium.edu.my/id/eprint/29301

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