Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid

The mechanisms of heat transfer enhancement are used in many industrial applications. Therefore several techniques have been promoted to enhance heat transfer rate and to decrease the size and cost of equipment especially the heat exchangers. Heat transfer coefficient and pressure drop for Al2O3/wat...

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Main Authors:	M. Kh., Abdolbaqi, Nor Azwadi, Che Sidik, R., Mamat, Azmi, W. H.
Format:	Article
Language:	English
Published:	Elsevier 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/1/fkm-2015-abdolbaqi-Experimental%20And%20Numerical%20Study%20Of%20Thermo-Hydraulic1.pdf

id	ump-11153
recordtype	eprints
spelling	ump-111532018-01-24T01:07:40Z http://umpir.ump.edu.my/id/eprint/11153/ Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid M. Kh., Abdolbaqi Nor Azwadi, Che Sidik R., Mamat Azmi, W. H. TJ Mechanical engineering and machinery The mechanisms of heat transfer enhancement are used in many industrial applications. Therefore several techniques have been promoted to enhance heat transfer rate and to decrease the size and cost of equipment especially the heat exchangers. Heat transfer coefficient and pressure drop for Al2O3/water Nanofluid flow inside circumferential ribbed tubes with different rib dimensions have been determined numerically. The nanoparticle size is set equal to 13 nm and the volume fractions from 0% to 3% are used. The ribbed copper tubes tested in this investigation with inner diameter of 14.9 mm have the ranges: circumferential depth from 0.5 to 1.5 mm and axial pitch distance from 5 to 15 mm. The inlet temperature of turbulent nanofluid is 25 °C and the wall constant heat flux is 5,000 W/m2. The study is accomplished by means of Ansys Fluent code and its purpose involves into find arrangements and depth of ribs such to provide low pressure drops and high heat transfer coefficients in existence of water /Al2O3 nanofluids . Comparison of numerical data of circumferentially ribbed tubes with plain tube have shown that the heat transfer coefficient, quantified by means of Nusselt number increase from 92 to 621% and friction factor increase from 25 to 241% compared to those obtained in smooth tube depending on the circumferential geometric parameters, mass velocity and thermal conductivity of the working fluid. Elsevier 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11153/1/fkm-2015-abdolbaqi-Experimental%20And%20Numerical%20Study%20Of%20Thermo-Hydraulic1.pdf M. Kh., Abdolbaqi and Nor Azwadi, Che Sidik and R., Mamat and Azmi, W. H. (2015) Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid. International Communications in Heat and Mass Transfer, 69. pp. 34-40. ISSN 0735-1933 http://dx.doi.org/10.1016/j.icheatmasstransfer.2015.10.003 DOI: 10.1016/j.icheatmasstransfer.2015.10.003
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 Nor Azwadi, Che Sidik R., Mamat Azmi, W. H. Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
description	The mechanisms of heat transfer enhancement are used in many industrial applications. Therefore several techniques have been promoted to enhance heat transfer rate and to decrease the size and cost of equipment especially the heat exchangers. Heat transfer coefficient and pressure drop for Al2O3/water Nanofluid flow inside circumferential ribbed tubes with different rib dimensions have been determined numerically. The nanoparticle size is set equal to 13 nm and the volume fractions from 0% to 3% are used. The ribbed copper tubes tested in this investigation with inner diameter of 14.9 mm have the ranges: circumferential depth from 0.5 to 1.5 mm and axial pitch distance from 5 to 15 mm. The inlet temperature of turbulent nanofluid is 25 °C and the wall constant heat flux is 5,000 W/m2. The study is accomplished by means of Ansys Fluent code and its purpose involves into find arrangements and depth of ribs such to provide low pressure drops and high heat transfer coefficients in existence of water /Al2O3 nanofluids . Comparison of numerical data of circumferentially ribbed tubes with plain tube have shown that the heat transfer coefficient, quantified by means of Nusselt number increase from 92 to 621% and friction factor increase from 25 to 241% compared to those obtained in smooth tube depending on the circumferential geometric parameters, mass velocity and thermal conductivity of the working fluid.
format	Article
author	M. Kh., Abdolbaqi Nor Azwadi, Che Sidik R., Mamat Azmi, W. H.
author_facet	M. Kh., Abdolbaqi Nor Azwadi, Che Sidik R., Mamat Azmi, W. H.
author_sort	M. Kh., Abdolbaqi
title	Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
title_short	Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
title_full	Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
title_fullStr	Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
title_full_unstemmed	Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid
title_sort	experimental and numerical study of thermo-hydraulic performance of circumferentially ribbed tube with al2o3 nanoﬂuid
publisher	Elsevier
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/ http://umpir.ump.edu.my/id/eprint/11153/1/fkm-2015-abdolbaqi-Experimental%20And%20Numerical%20Study%20Of%20Thermo-Hydraulic1.pdf
first_indexed	2023-09-18T22:11:37Z
last_indexed	2023-09-18T22:11:37Z
_version_	1777415065347031040

Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanoﬂuid

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