Viscosity Analysis of Water-based Copper Oxide Nanofluids

Singh, J.; Kumar, R.; Kumar, H.; Gupta, M.

doi:10.5829/ije.2023.36.03c.07

Cited by 2 publications

(1 citation statement)

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“…In nanofluids, viscosity can be influenced by various factors, including nanoparticle concentration, size, and surface chemistry. As the particle size increases, the viscosity of the nanofluid may either decrease or increase depending on the specific conditions and concentration levels [42,43]. Typically, at low concentrations, the viscosity is expected to be relatively low due to the dominance of the base fluid's properties.…”

Section: Viscositymentioning

confidence: 99%

Formulation of Graphene Nanoplatelets Water-Based Nanofluids using Polyvinylpyrrolidone (PVP) as Surfactant

Nurul Izzati Akmal Muhamed Rafaizul,

Mohd Afzanizam Mohd Rosli,

Nurfarhana Salimen

et al. 2024

ARMNE

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Graphene nanoplatelets (GNP) have garnered significant interest owing to their remarkable mechanical properties, making them ideal materials for enhancing the heat transfer properties of nanofluids. However, the agglomeration of GNP in water-based nanofluids remains a significant challenge, limiting their practical applications. In this study, a comprehensive investigation into the formulation of water-based nanofluids using GNP is presented, with a focus on the incorporation of polyvinylpyrrolidone (PVP) as a surfactant to enhance their stability and dispersion. The nanofluid formulations were systematically prepared with varying concentrations of GNP and PVP to optimize their thermal properties. Additionally, the thermal conductivity and viscosity of the nanofluids were examined over a range of temperatures and concentrations. The results show that the formulation of GNP with 0.6 wt.% shows great potential as a nanofluid with 0.6611 W/mK and 1.22 mPa.s for thermal conductivity and viscosity, respectively. The findings also demonstrate that the incorporation of PVP significantly improves the stability and dispersion of GNP in water, leading to enhanced thermal conductivity and manageable viscosity. These findings contribute to the application of this nanofluid in various industries, specifically solar energy.

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Section: Viscositymentioning

confidence: 99%