Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid

Experimental measurements of viscosity and thermal conductivity of single layer of graphene . based DI-water nanofluid are performed as a function of concentrations (0.1-1wt%) and temperatures between (5 to 35ºC). The result reveals that the thermal conductivity of GNPs nanofluids was increased wit...

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Main Authors: Najdat N. Abdullah, Hussein A. Ibrahim
Format: Article
Language:English
Published: University of Baghdad 2017-04-01
Series:Journal of Engineering
Online Access:https://www.jcoeng.edu.iq/index.php/main/article/view/56/48
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author Najdat N. Abdullah
Hussein A. Ibrahim
author_facet Najdat N. Abdullah
Hussein A. Ibrahim
author_sort Najdat N. Abdullah
collection DOAJ
description Experimental measurements of viscosity and thermal conductivity of single layer of graphene . based DI-water nanofluid are performed as a function of concentrations (0.1-1wt%) and temperatures between (5 to 35ºC). The result reveals that the thermal conductivity of GNPs nanofluids was increased with increasing the nanoparticle weight fraction concentration and temperature, while the maximum enhancement was about 22% for concentration of 1 wt.% at 35ºC. These experimental results were compared with some theoretical models and a good agreement between Nan’s model and the experimental results was observed. The viscosity of the graphene nanofluid displays Newtonian and Non-Newtonian behaviors with respect to nanoparticles concentration and temperature, and about 111% enhancement was obtained compared to the base fluid with GNPs weight fraction concentration of 1wt.% at 35ºC. Based on the experimental data, correlations were developed for predicting thermophysical properties of the GNPs based DI-water nanofluid.
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spelling doaj.art-c8dabfc62ce146568b9ffac2d804d9552023-09-02T17:24:25ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392017-04-01234142161Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water NanofluidNajdat N. AbdullahHussein A. IbrahimExperimental measurements of viscosity and thermal conductivity of single layer of graphene . based DI-water nanofluid are performed as a function of concentrations (0.1-1wt%) and temperatures between (5 to 35ºC). The result reveals that the thermal conductivity of GNPs nanofluids was increased with increasing the nanoparticle weight fraction concentration and temperature, while the maximum enhancement was about 22% for concentration of 1 wt.% at 35ºC. These experimental results were compared with some theoretical models and a good agreement between Nan’s model and the experimental results was observed. The viscosity of the graphene nanofluid displays Newtonian and Non-Newtonian behaviors with respect to nanoparticles concentration and temperature, and about 111% enhancement was obtained compared to the base fluid with GNPs weight fraction concentration of 1wt.% at 35ºC. Based on the experimental data, correlations were developed for predicting thermophysical properties of the GNPs based DI-water nanofluid.https://www.jcoeng.edu.iq/index.php/main/article/view/56/48
spellingShingle Najdat N. Abdullah
Hussein A. Ibrahim
Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
Journal of Engineering
title Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
title_full Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
title_fullStr Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
title_full_unstemmed Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
title_short Experimental Measurements of Viscosity and Thermal Conductivity of Single Layer Graphene Based DI-water Nanofluid
title_sort experimental measurements of viscosity and thermal conductivity of single layer graphene based di water nanofluid
url https://www.jcoeng.edu.iq/index.php/main/article/view/56/48
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