Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport

Hybrid nanofluids are a novel class of colloidal fluids which have drawn significant attention due to potential tailoring of their thermo-physical properties for heat transfer enhancement by a combination of more than one nano-additive to meet specific requirements of an application. In the present...

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Main Authors: Akilu, S., Baheta, A.T., M.Said, M.A., Minea, A.A., Sharma, K.V.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.20901 /
Published: Elsevier B.V. 2018
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039054732&doi=10.1016%2fj.solmat.2017.10.027&partnerID=40&md5=3f93588fcf623385a382cbafcfc63428
http://eprints.utp.edu.my/20901/
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spelling utp-eprints.209012019-02-26T02:42:15Z Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport Akilu, S. Baheta, A.T. M.Said, M.A. Minea, A.A. Sharma, K.V. Hybrid nanofluids are a novel class of colloidal fluids which have drawn significant attention due to potential tailoring of their thermo-physical properties for heat transfer enhancement by a combination of more than one nano-additive to meet specific requirements of an application. In the present work, ceramic copper oxide/carbon (SiO2-CuO/C) nanoparticles in 80:20 (wt) composition were prepared by ultrasonic-assisted wet mixing technique. The hybrid nanofluid was formulated by dispersing the nanoparticles into a base fluid mixture of 60:40 ( by mass) glycerol and ethylene glycol (G/EG) using the two-steps method. The influence of nanoparticles on the augmentation of specific heat, thermal conductivity and viscosity was examined in the volume concentration range of 0.5�2.0 in the temperature range of 303.15�353.15 K. The results demonstrate that the synthesized SiO2-CuO/C hybrid nanoparticles enhanced the thermo-physical properties of the base fluid mixture which is higher than using SiO2 alone. In the case of SiO2�G/EG nanofluid, the specific heat capacity decremented by a maximum value of 5.7 whereas the thermal conductivity and viscosity incremented by 6.9 and 1.33-times as compared with G/EG at maximum volume concentration of 2.0 at a temperature of 353.15 K. Comparatively, a reinforcement of 80 SiO2 with 20 CuO/C in G/EG mixture led to thermal conductivity and viscosity enhancement by 26.9 and 1.15-times, respectively with a significant reduction of specific heat by 21.1. New empirical correlations were proposed based on the experimental data for evaluation of thermophysical properties. © 2017 Elsevier B.V. Elsevier B.V. 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039054732&doi=10.1016%2fj.solmat.2017.10.027&partnerID=40&md5=3f93588fcf623385a382cbafcfc63428 Akilu, S. and Baheta, A.T. and M.Said, M.A. and Minea, A.A. and Sharma, K.V. (2018) Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport. Solar Energy Materials and Solar Cells, 179 . pp. 118-128. http://eprints.utp.edu.my/20901/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Hybrid nanofluids are a novel class of colloidal fluids which have drawn significant attention due to potential tailoring of their thermo-physical properties for heat transfer enhancement by a combination of more than one nano-additive to meet specific requirements of an application. In the present work, ceramic copper oxide/carbon (SiO2-CuO/C) nanoparticles in 80:20 (wt) composition were prepared by ultrasonic-assisted wet mixing technique. The hybrid nanofluid was formulated by dispersing the nanoparticles into a base fluid mixture of 60:40 ( by mass) glycerol and ethylene glycol (G/EG) using the two-steps method. The influence of nanoparticles on the augmentation of specific heat, thermal conductivity and viscosity was examined in the volume concentration range of 0.5�2.0 in the temperature range of 303.15�353.15 K. The results demonstrate that the synthesized SiO2-CuO/C hybrid nanoparticles enhanced the thermo-physical properties of the base fluid mixture which is higher than using SiO2 alone. In the case of SiO2�G/EG nanofluid, the specific heat capacity decremented by a maximum value of 5.7 whereas the thermal conductivity and viscosity incremented by 6.9 and 1.33-times as compared with G/EG at maximum volume concentration of 2.0 at a temperature of 353.15 K. Comparatively, a reinforcement of 80 SiO2 with 20 CuO/C in G/EG mixture led to thermal conductivity and viscosity enhancement by 26.9 and 1.15-times, respectively with a significant reduction of specific heat by 21.1. New empirical correlations were proposed based on the experimental data for evaluation of thermophysical properties. © 2017 Elsevier B.V.
format Article
author Akilu, S.
Baheta, A.T.
M.Said, M.A.
Minea, A.A.
Sharma, K.V.
spellingShingle Akilu, S.
Baheta, A.T.
M.Said, M.A.
Minea, A.A.
Sharma, K.V.
Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
author_sort Akilu, S.
title Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
title_short Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
title_full Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
title_fullStr Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
title_full_unstemmed Properties of glycerol and ethylene glycol mixture based SiO2-CuO/C hybrid nanofluid for enhanced solar energy transport
title_sort properties of glycerol and ethylene glycol mixture based sio2-cuo/c hybrid nanofluid for enhanced solar energy transport
publisher Elsevier B.V.
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039054732&doi=10.1016%2fj.solmat.2017.10.027&partnerID=40&md5=3f93588fcf623385a382cbafcfc63428
http://eprints.utp.edu.my/20901/
_version_ 1741196414201888768
score 11.62408

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