Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid

Conventional surfactants such as CTAB (cetrimonium bromide), SDS (sodium dodecyl sulphate), SDBS (sodium dodecyl sulphonate) are combined with nanofluids to improve the stability and thermal conductivity of nanofluids. These nanofluids are mainly used for heat transfer applications where heating and...

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Main Authors: Bakthavatchalam, B., Habib, K., Wilfred, C.D., Saidur, R., Saha, B.B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.28832 /
Published: Springer Science and Business Media B.V. 2022
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095769965&doi=10.1007%2fs10973-020-10374-x&partnerID=40&md5=381ced5fa0e4b007b7f2c8272099c974
http://eprints.utp.edu.my/28832/
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spelling utp-eprints.288322022-03-17T02:33:12Z Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid Bakthavatchalam, B. Habib, K. Wilfred, C.D. Saidur, R. Saha, B.B. Conventional surfactants such as CTAB (cetrimonium bromide), SDS (sodium dodecyl sulphate), SDBS (sodium dodecyl sulphonate) are combined with nanofluids to improve the stability and thermal conductivity of nanofluids. These nanofluids are mainly used for heat transfer applications where heating and cooling are usual courses of action which result in surfactants producing foams and polluting the heat transfer media, affecting the total system performance. Besides, the common surfactant molecules that augment the thermal resistance between the nanoparticles and base fluid also affect the thermophysical properties of the nanofluid. In this paper, BmimCl (1-butyl-3-methylimidazolium chloride), a high purity ionic liquid (IL) with higher thermal stability was used to provide a comparative study on the stability and thermal properties with that of the conventional surfactants (CTAB, SDS, SDBS) on multiwalled carbon nanotubes (MWCNT)/propylene glycol (PG) nanofluid. The transient hot-wire based KD2-Pro and zeta potential results demonstrated that the inclusion of ionic liquid improved the thermal conductivity and stability of the formulated nanofluid. However, much like the conventional surfactants, the strong electrostatic repulsive force created by the ionic liquid was found to decrease when the temperature is increased. The outcome demonstrated the most extreme thermal conductivity upgrade of 33.7% at 303 K and maximum dispersion stability of more than one month without any aggregation for the nanofluid containing ionic liquid. © 2020, Akadémiai Kiadó, Budapest, Hungary. Springer Science and Business Media B.V. 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095769965&doi=10.1007%2fs10973-020-10374-x&partnerID=40&md5=381ced5fa0e4b007b7f2c8272099c974 Bakthavatchalam, B. and Habib, K. and Wilfred, C.D. and Saidur, R. and Saha, B.B. (2022) Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid. Journal of Thermal Analysis and Calorimetry, 147 (1). pp. 393-408. http://eprints.utp.edu.my/28832/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Conventional surfactants such as CTAB (cetrimonium bromide), SDS (sodium dodecyl sulphate), SDBS (sodium dodecyl sulphonate) are combined with nanofluids to improve the stability and thermal conductivity of nanofluids. These nanofluids are mainly used for heat transfer applications where heating and cooling are usual courses of action which result in surfactants producing foams and polluting the heat transfer media, affecting the total system performance. Besides, the common surfactant molecules that augment the thermal resistance between the nanoparticles and base fluid also affect the thermophysical properties of the nanofluid. In this paper, BmimCl (1-butyl-3-methylimidazolium chloride), a high purity ionic liquid (IL) with higher thermal stability was used to provide a comparative study on the stability and thermal properties with that of the conventional surfactants (CTAB, SDS, SDBS) on multiwalled carbon nanotubes (MWCNT)/propylene glycol (PG) nanofluid. The transient hot-wire based KD2-Pro and zeta potential results demonstrated that the inclusion of ionic liquid improved the thermal conductivity and stability of the formulated nanofluid. However, much like the conventional surfactants, the strong electrostatic repulsive force created by the ionic liquid was found to decrease when the temperature is increased. The outcome demonstrated the most extreme thermal conductivity upgrade of 33.7% at 303 K and maximum dispersion stability of more than one month without any aggregation for the nanofluid containing ionic liquid. © 2020, Akadémiai Kiadó, Budapest, Hungary.
format Article
author Bakthavatchalam, B.
Habib, K.
Wilfred, C.D.
Saidur, R.
Saha, B.B.
spellingShingle Bakthavatchalam, B.
Habib, K.
Wilfred, C.D.
Saidur, R.
Saha, B.B.
Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
author_sort Bakthavatchalam, B.
title Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
title_short Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
title_full Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
title_fullStr Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
title_full_unstemmed Comparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid
title_sort comparative evaluation on the thermal properties and stability of mwcnt nanofluid with conventional surfactants and ionic liquid
publisher Springer Science and Business Media B.V.
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095769965&doi=10.1007%2fs10973-020-10374-x&partnerID=40&md5=381ced5fa0e4b007b7f2c8272099c974
http://eprints.utp.edu.my/28832/
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score 11.62408

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