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Investigating corrosion effects and heat transfer enhancement in smaller size radiators using CNT-nanofluids

Rashmi, W. and Ismail, Ahmad Faris and Khalid, M. and Anuar, A. and Yusaf, T. (2014) Investigating corrosion effects and heat transfer enhancement in smaller size radiators using CNT-nanofluids. Journal of Materials Science, 49 (13). pp. 4544-4551. ISSN 1573-4803 (O), 0022-2461 (P)

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Abstract

Nanofluids have been extensively studied in the past to enhance the heat transfer performance and efficiency of systems. However, corrosion effects have been paid very little attention and thus this work presents an experimental study on the effect of carbon nanotubes (CNT) on corrosion of three different metals under study such as aluminium alloy, stainless steel and copper, respectively. The work was further extended to study the heat transfer performance in a car radiator of two different sizes. Both the studies were performed using four different fluids such as water, ethylene glycol, 0.02 % CNT-nanofluid and 0.1 % CNT-nanofluid, respectively. It was observed that among the three metals, the highest rate of corrosion occurs to aluminium, followed by stainless steel and copper, irrespective of the fluid used. The rate of corrosion increased with the increase in temperature (27–90 °C) in all cases. The experimental results showed that the stable CNT-nanofluids prepared in this work showed better heat transfer performance in both engines. Moreover, the smaller radiator using the CNT-nanofluids depicted enhanced heat transfer rates compared to the standard radiator using water and ethylene glycol.

Item Type: Article (Journal)
Additional Information: 1743/36776
Uncontrolled Keywords: corrosion, radiators, CNT-nanofluids
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics
T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Prof Dr Ahmad Faris Ismail
Date Deposited: 30 May 2014 09:36
Last Modified: 19 Jun 2018 14:38
URI: http://irep.iium.edu.my/id/eprint/36776

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