Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow

The need for high thermal performance thermal systems has been eventuated by finding different ways to enhance heat transfer rates. This paper introduces and analyzes numerically the heat transfer enhancement of nanofluids with different volume concentrations under turbulent flow through a straight...

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Main Authors:	M. Kh., Abdolbaqi, C. S. N., Azwadi, R., Mamat, Azmi, W. H., G., Najafi
Format:	Article
Language:	English
Published:	Penerbit Universiti Malaysia Pahang 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/1/10_2015_IJAME_01_Baqi.pdf

id	ump-11192
recordtype	eprints
spelling	ump-111922018-01-24T01:08:58Z http://umpir.ump.edu.my/id/eprint/11192/ Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow M. Kh., Abdolbaqi C. S. N., Azwadi R., Mamat Azmi, W. H. G., Najafi TJ Mechanical engineering and machinery The need for high thermal performance thermal systems has been eventuated by finding different ways to enhance heat transfer rates. This paper introduces and analyzes numerically the heat transfer enhancement of nanofluids with different volume concentrations under turbulent flow through a straight channel with a constant heat flux condition. Solid nanoparticles of TiO2 and CuO were suspended in water as a base fluid to prepare the nanofluids. CFD analysis is conducted by FLUENT software using the finite volume method. The heat flux considered is 5000 W/m2, the Reynolds numbers are 104–106 with a constant volume concentration of 1–3%. Based on the analysis of the numerical results, it is found that the heat transfer rates and wall shear stress increase with increase of the nanofluid volume concentration. It appears that the CuO nanofluid significantly enhances the heat transfer. Furthermore, the numerical results are validated with the literature data available and show good agreement, with 4% deviation. The study concluded that the enhancement of the friction factor and Nusselt number is by 2% and 21%, respectively for the nanofluids at all Reynolds numbers. Therefore, nanofluids are considered to have great potential for heat transfer enhancement and are applied in heat transfer processes. Penerbit Universiti Malaysia Pahang 2015 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/11192/1/10_2015_IJAME_01_Baqi.pdf M. Kh., Abdolbaqi and C. S. N., Azwadi and R., Mamat and Azmi, W. H. and G., Najafi (2015) Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow. International Journal of Automotive and Mechanical Engineering (IJAME), 11. pp. 2294-2305. ISSN 2229-8649 (Print); 2180-1606 (Online) http://dx.doi.org/10.15282/ijame.11.2015.12.0193 DOI: 10.15282/ijame.11.2015.12.0193
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. Kh., Abdolbaqi C. S. N., Azwadi R., Mamat Azmi, W. H. G., Najafi Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
description	The need for high thermal performance thermal systems has been eventuated by finding different ways to enhance heat transfer rates. This paper introduces and analyzes numerically the heat transfer enhancement of nanofluids with different volume concentrations under turbulent flow through a straight channel with a constant heat flux condition. Solid nanoparticles of TiO2 and CuO were suspended in water as a base fluid to prepare the nanofluids. CFD analysis is conducted by FLUENT software using the finite volume method. The heat flux considered is 5000 W/m2, the Reynolds numbers are 104–106 with a constant volume concentration of 1–3%. Based on the analysis of the numerical results, it is found that the heat transfer rates and wall shear stress increase with increase of the nanofluid volume concentration. It appears that the CuO nanofluid significantly enhances the heat transfer. Furthermore, the numerical results are validated with the literature data available and show good agreement, with 4% deviation. The study concluded that the enhancement of the friction factor and Nusselt number is by 2% and 21%, respectively for the nanofluids at all Reynolds numbers. Therefore, nanofluids are considered to have great potential for heat transfer enhancement and are applied in heat transfer processes.
format	Article
author	M. Kh., Abdolbaqi C. S. N., Azwadi R., Mamat Azmi, W. H. G., Najafi
author_facet	M. Kh., Abdolbaqi C. S. N., Azwadi R., Mamat Azmi, W. H. G., Najafi
author_sort	M. Kh., Abdolbaqi
title	Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
title_short	Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
title_full	Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
title_fullStr	Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
title_full_unstemmed	Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow
title_sort	nanofluids heat transfer enhancement through straight channel under turbulent flow
publisher	Penerbit Universiti Malaysia Pahang
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/ http://umpir.ump.edu.my/id/eprint/11192/1/10_2015_IJAME_01_Baqi.pdf
first_indexed	2023-09-18T22:11:39Z
last_indexed	2023-09-18T22:11:39Z
_version_	1777415067687452672

Nanofluids Heat Transfer Enhancement Through Straight Channel Under Turbulent Flow

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