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Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids

Qualitative experiments were carried out to investigate the stability of Al2O3-SiO2 hybrid water-based nanofluids. The main nanoparticles used in this work were Al2O3 and SiO2 since these types of nanoparticles has been widely used and proposed in many applications and information on their hybrid...

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Main Authors:	H., Ismail, M. Z., Sulaiman, M. A. H., Aizzat
Format:	Conference or Workshop Item
Language:	English
Published:	IOP Publishing 2020
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/33551/1/Paper1_Ismail_2020_IOP_Conf._Ser.%20_Mater._Sci._Eng._788_012091.pdf http://umpir.ump.edu.my/id/eprint/33551/ https://doi.org/10.1088/1757-899X/788/1/012091
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spelling	my.ump.umpir.335512022-04-15T04:27:11Z http://umpir.ump.edu.my/id/eprint/33551/ Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids H., Ismail M. Z., Sulaiman M. A. H., Aizzat TJ Mechanical engineering and machinery Qualitative experiments were carried out to investigate the stability of Al2O3-SiO2 hybrid water-based nanofluids. The main nanoparticles used in this work were Al2O3 and SiO2 since these types of nanoparticles has been widely used and proposed in many applications and information on their hybrid dispersion stability characteristic are still elusive. The present work demonstrated the stability of Al2O3-SiO2 hybrid nanofluids using various preparation techniques and successively elucidating the optimum preparation method for hybrid nanofluid. The hybrid water-based nanofluid were prepared by dispersing a 50:50 ratio of Al2O3-SiO2 nanoparticles into distilled water to achieve total volume concentration of C=0.001, 0.01 and 0.1 vol%. Successively, the hybrid nanofluids were prepared using magnetic stirrer and ultrasonic bath. The samples are categorised into five preparation method which are: (i) 1 hour sonication, (ii) 1 hour magnetic stirrer, (iii) 0.25 hour magnetic stirrer and 1 hour sonication, and (iv) 0.5 hour magnetic stirrer and 1 hour sonication and (v) without magnetic stirring and sonication. The height of sedimentation and colloidal stability of each preparation methods were observed in the duration of 2 weeks. In the present work, it was observed that the dispersion stability of hybrid nanofluids prepared by applying magnetic stirrer for 15 minutes with prior to 1 hour of sonication had demonstrated the highest stability indicated by the lowest height of sedimentation and high colloidal stability. IOP Publishing 2020 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/33551/1/Paper1_Ismail_2020_IOP_Conf._Ser.%20_Mater._Sci._Eng._788_012091.pdf H., Ismail and M. Z., Sulaiman and M. A. H., Aizzat (2020) Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids. In: IOP Conference Series: Materials Science and Engineering, 5th International Conference on Mechanical Engineering Research (ICMER 2019), 30-31 July 2019 , Kuantan, Malaysia. pp. 1-8., 788 (012091). ISSN 1757-8981 https://doi.org/10.1088/1757-899X/788/1/012091 doi:10.1088/1757-899X/788/1/012091
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
building	UMPSA Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang Al-Sultan Abdullah
content_source	UMPSA Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery H., Ismail M. Z., Sulaiman M. A. H., Aizzat Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
description	Qualitative experiments were carried out to investigate the stability of Al2O3-SiO2 hybrid water-based nanofluids. The main nanoparticles used in this work were Al2O3 and SiO2 since these types of nanoparticles has been widely used and proposed in many applications and information on their hybrid dispersion stability characteristic are still elusive. The present work demonstrated the stability of Al2O3-SiO2 hybrid nanofluids using various preparation techniques and successively elucidating the optimum preparation method for hybrid nanofluid. The hybrid water-based nanofluid were prepared by dispersing a 50:50 ratio of Al2O3-SiO2 nanoparticles into distilled water to achieve total volume concentration of C=0.001, 0.01 and 0.1 vol%. Successively, the hybrid nanofluids were prepared using magnetic stirrer and ultrasonic bath. The samples are categorised into five preparation method which are: (i) 1 hour sonication, (ii) 1 hour magnetic stirrer, (iii) 0.25 hour magnetic stirrer and 1 hour sonication, and (iv) 0.5 hour magnetic stirrer and 1 hour sonication and (v) without magnetic stirring and sonication. The height of sedimentation and colloidal stability of each preparation methods were observed in the duration of 2 weeks. In the present work, it was observed that the dispersion stability of hybrid nanofluids prepared by applying magnetic stirrer for 15 minutes with prior to 1 hour of sonication had demonstrated the highest stability indicated by the lowest height of sedimentation and high colloidal stability.
format	Conference or Workshop Item
author	H., Ismail M. Z., Sulaiman M. A. H., Aizzat
author_facet	H., Ismail M. Z., Sulaiman M. A. H., Aizzat
author_sort	H., Ismail
title	Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
title_short	Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
title_full	Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
title_fullStr	Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
title_full_unstemmed	Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids
title_sort	qualitative investigations on the stability of al2o3-sio2 hybrid water-based nanofluids
publisher	IOP Publishing
publishDate	2020
url	http://umpir.ump.edu.my/id/eprint/33551/1/Paper1_Ismail_2020_IOP_Conf._Ser.%20_Mater._Sci._Eng._788_012091.pdf http://umpir.ump.edu.my/id/eprint/33551/ https://doi.org/10.1088/1757-899X/788/1/012091
_version_	1822922472876408832
score	13.250246

Qualitative investigations on the stability of Al2O3-SiO2 hybrid water-based nanofluids

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