Analysis of the Effect of Temperature and Volume Fraction on the Thermophysical Properties of MWCNT-Mineral Oil Nanofluid

DOI

10.2991/978-94-6239-687-6_3How to use a DOI?

Keywords

nanofluid; MWCNT; viscosity; density; thermal conductivity

Abstract

Multiwalled carbon nanotubes (MWCNTs) are widely recognized for their exceptional thermal conductivity, high aspect ratio, and stability, making them ideal additives for enhancing the heat transfer performance of base fluids. Over recent decades, MWCNT-based nanofluids have demonstrated superior thermophysical properties; however, the combined influence of temperature and nanoparticle concentration remains insufficiently characterized, particularly for mineral oil applications in industrial thermal systems. This study investigates the effect of MWCNT volume fraction (0.025%, 0.050%, and 0.075%) and temperature on the density, viscosity, and thermal conductivity of mineral oil–based nanofluids. Samples were prepared using a two-step dispersion method, and measurements were conducted using a pycnometer, Brookfield Rheometer, and thermal conductivity unit. The results indicated that increasing the MWCNT concentration enhanced the density, viscosity, and thermal conductivity, whereas higher temperatures reduced the density and viscosity, but improved the thermal conductivity. Classical predictive models that neglect temperature dependence show significant deviations from the experimental observations. To address this, new empirical correlations were developed using linear and nonlinear regressions, providing substantially improved prediction accuracy. These findings advance the understanding of temperature–concentration interactions in MWCNT nanofluids and provide validated predictive tools for engineering applications where precise thermal-fluid performance estimation is critical.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Muhammad Agung Bramantya
AU  - Khasani
AU  - Fauzun
PY  - 2026
DA  - 2026/05/24
TI  - Analysis of the Effect of Temperature and Volume Fraction on the Thermophysical Properties of MWCNT-Mineral Oil Nanofluid
BT  - Proceedings of the 8th Mechanical and Industrial Engineering Symposium (MIE 2025)
PB  - Atlantis Press
SP  - 17
EP  - 27
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-687-6_3
DO  - 10.2991/978-94-6239-687-6_3
ID  - Bramantya2026
ER  -