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

Rashmi, W. and Ismail, A. F. 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 0022-2461

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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 Springer Science+Business Media New York. Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 08 Jul 2014 23:55
Last Modified: 04 Jul 2016 05:42
Uncontrolled Keywords: automobile radiators; copper; corrosive effects; ethylene glycol; polyols
Fields of Research : 09 Engineering > 0902 Automotive Engineering > 090299 Automotive Engineering not elsewhere classified
09 Engineering > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations
10 Technology > 1007 Nanotechnology > 100704 Nanoelectromechanical Systems
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1007/s10853-014-8154-y
URI: http://eprints.usq.edu.au/id/eprint/25447

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