Staff View: Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach

Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach

Experimental study of nanofluid flow and heat transfer to fully developed turbulent forced convection flow in a uniformly heated tubular horizontal backward-facing step has reported in the present study. To study the forced convective heat transfer coefficient in the turbulent regime, an experimenta...

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Main Authors:	Ahmed, Syed Muzamil, Kazi, Salim Newaz, Khan, Ghulamullah, Zubir, Mohd Nashrul Mohd, Dahari, Mahidzal, Ibrahim, Suriani, Abu Talip, Mohamad Sofian, Ahmad, Pervaiz, Chowdhury, Zaira Zaman
Format:	Article
Published:	VINCA Institute of Nuclear Sciences 2019
Subjects:	QC Physics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology
Online Access:	http://eprints.um.edu.my/22618/ https://doi.org/10.2298/TSCI170606236A
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spelling	my.um.eprints.226182019-09-30T01:24:20Z http://eprints.um.edu.my/22618/ Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach Ahmed, Syed Muzamil Kazi, Salim Newaz Khan, Ghulamullah Zubir, Mohd Nashrul Mohd Dahari, Mahidzal Ibrahim, Suriani Abu Talip, Mohamad Sofian Ahmad, Pervaiz Chowdhury, Zaira Zaman QC Physics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology Experimental study of nanofluid flow and heat transfer to fully developed turbulent forced convection flow in a uniformly heated tubular horizontal backward-facing step has reported in the present study. To study the forced convective heat transfer coefficient in the turbulent regime, an experimental study is performed at a different weight concentration of Al2O3 nanoparticles. The experiment had conducted for water and Alumina-water nanofluid for the concentration range of 0 to 0.1 wt.% and Reynolds number of 4000 to 16000. The average heat transfer coefficient ratio increases significantly as Reynolds number increasing, increased from 9.6% at Re of 4000 to 26.3% at Re of 16,000 at the constant weight concentration of 0.1%. Alumina-water nanofluid exhibited excellent thermal performance in the tube with a backward-facing step in comparison to distilled water. However, the pressure losses increased with the increase of the Reynolds number and/or the weight concentrations, but the enhancement rates were insignificant. VINCA Institute of Nuclear Sciences 2019 Article PeerReviewed Ahmed, Syed Muzamil and Kazi, Salim Newaz and Khan, Ghulamullah and Zubir, Mohd Nashrul Mohd and Dahari, Mahidzal and Ibrahim, Suriani and Abu Talip, Mohamad Sofian and Ahmad, Pervaiz and Chowdhury, Zaira Zaman (2019) Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach. Thermal Science, 23 (3 Part). pp. 1779-1789. ISSN 0354-9836 https://doi.org/10.2298/TSCI170606236A doi:10.2298/TSCI170606236A
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QC Physics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology
spellingShingle	QC Physics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology Ahmed, Syed Muzamil Kazi, Salim Newaz Khan, Ghulamullah Zubir, Mohd Nashrul Mohd Dahari, Mahidzal Ibrahim, Suriani Abu Talip, Mohamad Sofian Ahmad, Pervaiz Chowdhury, Zaira Zaman Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
description	Experimental study of nanofluid flow and heat transfer to fully developed turbulent forced convection flow in a uniformly heated tubular horizontal backward-facing step has reported in the present study. To study the forced convective heat transfer coefficient in the turbulent regime, an experimental study is performed at a different weight concentration of Al2O3 nanoparticles. The experiment had conducted for water and Alumina-water nanofluid for the concentration range of 0 to 0.1 wt.% and Reynolds number of 4000 to 16000. The average heat transfer coefficient ratio increases significantly as Reynolds number increasing, increased from 9.6% at Re of 4000 to 26.3% at Re of 16,000 at the constant weight concentration of 0.1%. Alumina-water nanofluid exhibited excellent thermal performance in the tube with a backward-facing step in comparison to distilled water. However, the pressure losses increased with the increase of the Reynolds number and/or the weight concentrations, but the enhancement rates were insignificant.
format	Article
author	Ahmed, Syed Muzamil Kazi, Salim Newaz Khan, Ghulamullah Zubir, Mohd Nashrul Mohd Dahari, Mahidzal Ibrahim, Suriani Abu Talip, Mohamad Sofian Ahmad, Pervaiz Chowdhury, Zaira Zaman
author_facet	Ahmed, Syed Muzamil Kazi, Salim Newaz Khan, Ghulamullah Zubir, Mohd Nashrul Mohd Dahari, Mahidzal Ibrahim, Suriani Abu Talip, Mohamad Sofian Ahmad, Pervaiz Chowdhury, Zaira Zaman
author_sort	Ahmed, Syed Muzamil
title	Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
title_short	Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
title_full	Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
title_fullStr	Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
title_full_unstemmed	Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach
title_sort	toward improved heat dissipation of the turbulent regime over backward-facing step for the al2o3-water nanofluids: an experimental approach
publisher	VINCA Institute of Nuclear Sciences
publishDate	2019
url	http://eprints.um.edu.my/22618/ https://doi.org/10.2298/TSCI170606236A
_version_	1646210292767522816
score	13.232389

Toward improved heat dissipation of the turbulent regime over backward-facing step for the AL2O3-water nanofluids: An experimental approach

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