Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture

The need for high performance of heat transfer has been evaluated by finding different ways to enhance heat transfer rate in fluid. One of the methods is the combination of two or more nanoparticles and it is known as hybrid/composite nanofluids which can give better performance of heat transfer. Th...

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Main Authors:	M. F., Nabil, Azmi, W. H., K. A., Hamid, R., Mamat
Format:	Conference or Workshop Item
Language:	English
Published:	IOP Publishing Ltd 2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/1/Heat%20transfer%20and%20friction%20factor%20of%20composite%20TiO2%E2%80%93SiO2%20nanofluids%20in%20water-ethylene%20glycol%20%2860-40%29%20mixture.pdf

id	ump-20777
recordtype	eprints
spelling	ump-207772018-08-06T06:49:50Z http://umpir.ump.edu.my/id/eprint/20777/ Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture M. F., Nabil Azmi, W. H. K. A., Hamid R., Mamat TJ Mechanical engineering and machinery The need for high performance of heat transfer has been evaluated by finding different ways to enhance heat transfer rate in fluid. One of the methods is the combination of two or more nanoparticles and it is known as hybrid/composite nanofluids which can give better performance of heat transfer. Thus, the present study focused on combination of Titanium oxide (TiO2) and Silicon oxide (SiO2) nanoparticles dispersed in 60:40 volume ratio of water and ethylene glycol mixture as the base fluid. The TiO2-SiO2 hybrid nanofluids are prepared using two-step method for different concentration of 2.0%, 2.5% and 3.0%. The experimental determination of heat transfer coefficients are conducted in the Reynolds numbers range from 2000 to 10000 at a bulk temperature of 30°C. The experiments are undertaken for constant heat flux in a circular tube. The Nusselt number of composite TiO2- SiO2 nanofluids is observed to be higher than the base fluid. The finding on heat transfer coefficient shows that 3.0% volume concentration is the highest enhancement with 45.9% compared with base fluid. While at concentration 2.0% and 2.5%, the enhancement recorded were 29.4% and 33.2%, respectively. The friction factor of nanofluids shows a decreased with the increasing of Reynolds numbers. However, the friction factor slightly increased with the increased of concentration. IOP Publishing Ltd 2017-11 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/20777/1/Heat%20transfer%20and%20friction%20factor%20of%20composite%20TiO2%E2%80%93SiO2%20nanofluids%20in%20water-ethylene%20glycol%20%2860-40%29%20mixture.pdf M. F., Nabil and Azmi, W. H. and K. A., Hamid and R., Mamat (2017) Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture. In: 4th International Conference on Mechanical Engineering Research, ICMER 2017, 1-2 August 2017 , Swiss Garden Hotel and Spa Kuantan, Pahang; Malaysia. pp. 1-8., 257 (1). ISSN 1757-8981(print); 1757-899X(online) http://iopscience.iop.org/article/10.1088/1757-899X/257/1/012066/pdf DOI: 10.1088/1757-899X/257/1/012066
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery M. F., Nabil Azmi, W. H. K. A., Hamid R., Mamat Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
description	The need for high performance of heat transfer has been evaluated by finding different ways to enhance heat transfer rate in fluid. One of the methods is the combination of two or more nanoparticles and it is known as hybrid/composite nanofluids which can give better performance of heat transfer. Thus, the present study focused on combination of Titanium oxide (TiO2) and Silicon oxide (SiO2) nanoparticles dispersed in 60:40 volume ratio of water and ethylene glycol mixture as the base fluid. The TiO2-SiO2 hybrid nanofluids are prepared using two-step method for different concentration of 2.0%, 2.5% and 3.0%. The experimental determination of heat transfer coefficients are conducted in the Reynolds numbers range from 2000 to 10000 at a bulk temperature of 30°C. The experiments are undertaken for constant heat flux in a circular tube. The Nusselt number of composite TiO2- SiO2 nanofluids is observed to be higher than the base fluid. The finding on heat transfer coefficient shows that 3.0% volume concentration is the highest enhancement with 45.9% compared with base fluid. While at concentration 2.0% and 2.5%, the enhancement recorded were 29.4% and 33.2%, respectively. The friction factor of nanofluids shows a decreased with the increasing of Reynolds numbers. However, the friction factor slightly increased with the increased of concentration.
format	Conference or Workshop Item
author	M. F., Nabil Azmi, W. H. K. A., Hamid R., Mamat
author_facet	M. F., Nabil Azmi, W. H. K. A., Hamid R., Mamat
author_sort	M. F., Nabil
title	Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
title_short	Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
title_full	Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
title_fullStr	Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
title_full_unstemmed	Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture
title_sort	heat transfer and friction factor of composite tio2-sio2 nanofluids in water-ethylene glycol (60:40) mixture
publisher	IOP Publishing Ltd
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/ http://umpir.ump.edu.my/id/eprint/20777/1/Heat%20transfer%20and%20friction%20factor%20of%20composite%20TiO2%E2%80%93SiO2%20nanofluids%20in%20water-ethylene%20glycol%20%2860-40%29%20mixture.pdf
first_indexed	2023-09-18T22:30:10Z
last_indexed	2023-09-18T22:30:10Z
_version_	1777416232710963200

Heat transfer and friction factor of composite TiO2-SiO2 nanofluids in water-ethylene glycol (60:40) mixture

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