Synthesis, characterization, stability and thermal conductivity of multi-walled carbon nanotubes (MWCNTs) and eco-friendly jatropha seed oil based nanofluid: An experimental investigation and modeling approach

Rehman, Wajid Ur and Merican, Zulkifli Merican Aljunid and Bhat, Aamir Hussian and Hoe, Beh Guan and Sulaimon, Aliyu Adebayo and Akbarzadeh, Omid and Khan, Muhammad Saad and Mukhtar, Ahmad and Saqib, Sidra and Hameed, Ayesha and Mellon, Nurhayati and Ullah, Hafeez and Ullah, Sami and Assiri, Mohammed Ali (2019) Synthesis, characterization, stability and thermal conductivity of multi-walled carbon nanotubes (MWCNTs) and eco-friendly jatropha seed oil based nanofluid: An experimental investigation and modeling approach. Journal of Molecular Liquids, 293. p. 111534. ISSN 0167-7322, DOI https://doi.org/10.1016/j.molliq.2019.111534.

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Official URL: https://doi.org/10.1016/j.molliq.2019.111534

Abstract

Despite the remarkable nanofluids potential in energy storage applications, the long-term dispersion stability of the nanoparticles in a base fluid along with improved thermal conductivity is a significant challenge towards their commercialization. Therefore, a novel surfactant MWCNTs and eco-friendly Jatropha seed oil based nanofluid are synthesized via one-step synthesis method and subjected to characterization via visual analysis, FTIR, Zeta potential, pore size distribution, thermogravimetric analysis (TGA), and UV analysis to investigate MWCNTs dispersion stability along with thermal conductivity measurement. The results showed the excellent MWCNTs dispersion stability in Jatropha seed oil and thermal conductivity improvement from 2.29% to 6.76% over the temperature within the range of 25–65 °C and nanoparticle weight fraction in the range of 0.2–0.8 wt%. Furthermore, two new correlations are proposed based on multiple non-linear regression analysis and dimensionless group analysis in the replacement of classical models which are failed to accurate prediction of thermal conductivity. The developed models showed remarkable thermal conductivity prediction accuracy with the value of R2 > 0.991. © 2019

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: MWCNTs; Jatropha seed oil; Nanofluid; Thermal conductivity; Correlation; Stability; Dimensionless groups analysis
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > TP Chemical technology
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 03 Feb 2020 04:07
Last Modified: 03 Feb 2020 04:07
URI: http://eprints.um.edu.my/id/eprint/23653

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