Corrosion effects of CNT-nanofluids on different metals

This study aims to determine the corrosion rates of three different metals (copper, stainless steel, and aluminium alloy) using CNT-nanofluids. Nanofluids have been extensively studied in enhancing heat transfer rates of conventional base fluids due to its efficiency and high thermal conductivity. C...

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Main Authors: Ismail, Ahmad Faris, Anuar, Asnida, Walvekar , Rashmi Gangasa, Yusaf, Talal F.
Format: Article
Language:English
Published: WIT Press 2014
Subjects:
Online Access:http://irep.iium.edu.my/36827/
http://irep.iium.edu.my/36827/1/faris.pdf
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author Ismail, Ahmad Faris
Anuar, Asnida
Walvekar , Rashmi Gangasa
Yusaf, Talal F.
author_facet Ismail, Ahmad Faris
Anuar, Asnida
Walvekar , Rashmi Gangasa
Yusaf, Talal F.
author_sort Ismail, Ahmad Faris
building IIUM Repository
collection Online Access
description This study aims to determine the corrosion rates of three different metals (copper, stainless steel, and aluminium alloy) using CNT-nanofluids. Nanofluids have been extensively studied in enhancing heat transfer rates of conventional base fluids due to its efficiency and high thermal conductivity. Carbon nanotube (CNT) based nanofluids have demonstrated significantly higher thermal conductivity compared to nanofluids based on other nanoparticles. Though transport properties of CNT-nanofluids including its thermal conductivity, density and viscosity have been studied by large scientific community, there are only few studies carried out on its physical properties especially their reaction towards corrosion of different metals. Therefore, this study is carried out to compare the corrosion rates of three different metals using four different engine coolants with the variation of temperature from 27˚C to 90˚C. The coolants deployed in this work include ethylene glycol, water, and CNT-nanofluids with two different concentrations of 0.1 wt% and 0.02 wt% CNT. The CNT-nanfluids are stabilized using the Gum Arabic (GA) as the dispersant. The results reveal that for each metal, the corrosion rates in water are the highest followed by ethylene glycol and CNT-nanofluids with 0.02 wt% and 0.1 wt%. Among the three metals, the highest rate of corrosion occurs to aluminium, followed by stainless steel and copper, for all coolants used in this experimental study. Finally, the rate of corrosion increases with the increase of temperature for all cases.
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spelling iium-368272020-07-01T06:52:57Z http://irep.iium.edu.my/36827/ Corrosion effects of CNT-nanofluids on different metals Ismail, Ahmad Faris Anuar, Asnida Walvekar , Rashmi Gangasa Yusaf, Talal F. TA401 Materials of engineering and construction TJ Mechanical engineering and machinery This study aims to determine the corrosion rates of three different metals (copper, stainless steel, and aluminium alloy) using CNT-nanofluids. Nanofluids have been extensively studied in enhancing heat transfer rates of conventional base fluids due to its efficiency and high thermal conductivity. Carbon nanotube (CNT) based nanofluids have demonstrated significantly higher thermal conductivity compared to nanofluids based on other nanoparticles. Though transport properties of CNT-nanofluids including its thermal conductivity, density and viscosity have been studied by large scientific community, there are only few studies carried out on its physical properties especially their reaction towards corrosion of different metals. Therefore, this study is carried out to compare the corrosion rates of three different metals using four different engine coolants with the variation of temperature from 27˚C to 90˚C. The coolants deployed in this work include ethylene glycol, water, and CNT-nanofluids with two different concentrations of 0.1 wt% and 0.02 wt% CNT. The CNT-nanfluids are stabilized using the Gum Arabic (GA) as the dispersant. The results reveal that for each metal, the corrosion rates in water are the highest followed by ethylene glycol and CNT-nanofluids with 0.02 wt% and 0.1 wt%. Among the three metals, the highest rate of corrosion occurs to aluminium, followed by stainless steel and copper, for all coolants used in this experimental study. Finally, the rate of corrosion increases with the increase of temperature for all cases. WIT Press 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/36827/1/faris.pdf Ismail, Ahmad Faris and Anuar, Asnida and Walvekar , Rashmi Gangasa and Yusaf, Talal F. (2014) Corrosion effects of CNT-nanofluids on different metals. WIT Transactions on Engineering Sciences, 87. pp. 139-146. ISSN 1743-3533 http://library.witpress.com/pages/listBooks.asp?tID=1 10.2495/AMITP20130171
spellingShingle TA401 Materials of engineering and construction
TJ Mechanical engineering and machinery
Ismail, Ahmad Faris
Anuar, Asnida
Walvekar , Rashmi Gangasa
Yusaf, Talal F.
Corrosion effects of CNT-nanofluids on different metals
title Corrosion effects of CNT-nanofluids on different metals
title_full Corrosion effects of CNT-nanofluids on different metals
title_fullStr Corrosion effects of CNT-nanofluids on different metals
title_full_unstemmed Corrosion effects of CNT-nanofluids on different metals
title_short Corrosion effects of CNT-nanofluids on different metals
title_sort corrosion effects of cnt-nanofluids on different metals
topic TA401 Materials of engineering and construction
TJ Mechanical engineering and machinery
url http://irep.iium.edu.my/36827/
http://irep.iium.edu.my/36827/
http://irep.iium.edu.my/36827/
http://irep.iium.edu.my/36827/1/faris.pdf