Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture

Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids 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
English
Published: IOP Publishing 2017
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/1/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture.pdf
http://umpir.ump.edu.my/id/eprint/19161/7/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture%201.pdf
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spelling ump-191612018-05-18T03:23:40Z http://umpir.ump.edu.my/id/eprint/19161/ Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids 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 2017 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/19161/1/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/19161/7/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture%201.pdf M. F., Nabil and Azmi, W. H. and K. A., Hamid and R., Mamat (2017) Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture. In: 4th International Conference on Mechanical Engineering Research (ICMER2017), 1–2 August 2017 , Swiss Garden Beach Resort, Kuantan, Pahang, Malaysia. pp. 1-8., 257 (012066). ISSN 1757-8981 (Print); 1757-899X (Online) https://doi.org/10.1088/1757-899X/257/1/012066 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
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–SiO2nanofluids 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–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture
title_short Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture
title_full Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture
title_fullStr Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture
title_full_unstemmed Heat Transfer and Friction Factor of Composite TiO2–SiO2nanofluids in Water-Ethylene Glycol (60:40) Mixture
title_sort heat transfer and friction factor of composite tio2–sio2nanofluids in water-ethylene glycol (60:40) mixture
publisher IOP Publishing
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/
http://umpir.ump.edu.my/id/eprint/19161/1/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture.pdf
http://umpir.ump.edu.my/id/eprint/19161/7/Heat%20Transfer%20and%20Friction%20Factor%20of%20Composite%20TiO2%E2%80%93SiO2nanofluids%20in%20Water-Ethylene%20Glycol%20%2860-40%29%20Mixture%201.pdf
first_indexed 2023-09-18T22:27:27Z
last_indexed 2023-09-18T22:27:27Z
_version_ 1777416061873815552

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