Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators

Triangular conduits provide low pressure drop and low heat transfer coefficient compared to circular and other shapes of non-circular passages. The advantage of their low pressure drop motivated this research to increase the heat transfer rate by using two passive methods; vortex generators and nano...

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Main Authors:	Ahmed, H.E., Yusoff, M.Z., Hawlader, M.N.A., Ahmed, M.I., Salman, B.H., Kerbeet, A.S.
Published:	2018
Online Access:	http://dspace.uniten.edu.my/jspui/handle/123456789/8498

id	uniten-123456789-8498
recordtype	eprints
spelling	uniten-123456789-84982018-02-15T08:49:34Z Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators Ahmed, H.E. Yusoff, M.Z. Hawlader, M.N.A. Ahmed, M.I. Salman, B.H. Kerbeet, A.S. Triangular conduits provide low pressure drop and low heat transfer coefficient compared to circular and other shapes of non-circular passages. The advantage of their low pressure drop motivated this research to increase the heat transfer rate by using two passive methods; vortex generators and nanofluids. Turbulent flow-forced convective heat transfer of Al2O3/water and CuO/water nanofluids in an equilateral triangular passage with a delta-winglet pair of vortex generator is numerically studied in three-dimensions. A two-phase mixture model is utilized to simulate the fluid flow considering variable properties for nanofluids whereas those of solid nanoparticles are constant. The study is carried out to examine the effect of the different types of nanofluids, different volume fractions with a wide range of Reynolds numbers on the heat transfer and pressure drop penalty. A comparison between the nanofluid and the base fluid heat transfer is performed in this research. The Al2O3/water nanofluid shows great enhancement in heat transfer with the maximum overall performance of 45.7% at 3 vol.% and Re = 16,000 compared to the base fluid. High heat transfer and low pressure drop are observed by using nanofluid and VG simultaneously. © 2016 Elsevier Ltd 2018-02-15T08:49:34Z 2018-02-15T08:49:34Z 2017 http://dspace.uniten.edu.my/jspui/handle/123456789/8498
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Tenaga Nasional
building	UNITEN Institutional Repository
collection	Online Access
description	Triangular conduits provide low pressure drop and low heat transfer coefficient compared to circular and other shapes of non-circular passages. The advantage of their low pressure drop motivated this research to increase the heat transfer rate by using two passive methods; vortex generators and nanofluids. Turbulent flow-forced convective heat transfer of Al2O3/water and CuO/water nanofluids in an equilateral triangular passage with a delta-winglet pair of vortex generator is numerically studied in three-dimensions. A two-phase mixture model is utilized to simulate the fluid flow considering variable properties for nanofluids whereas those of solid nanoparticles are constant. The study is carried out to examine the effect of the different types of nanofluids, different volume fractions with a wide range of Reynolds numbers on the heat transfer and pressure drop penalty. A comparison between the nanofluid and the base fluid heat transfer is performed in this research. The Al2O3/water nanofluid shows great enhancement in heat transfer with the maximum overall performance of 45.7% at 3 vol.% and Re = 16,000 compared to the base fluid. High heat transfer and low pressure drop are observed by using nanofluid and VG simultaneously. © 2016 Elsevier Ltd
author	Ahmed, H.E. Yusoff, M.Z. Hawlader, M.N.A. Ahmed, M.I. Salman, B.H. Kerbeet, A.S.
spellingShingle	Ahmed, H.E. Yusoff, M.Z. Hawlader, M.N.A. Ahmed, M.I. Salman, B.H. Kerbeet, A.S. Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
author_facet	Ahmed, H.E. Yusoff, M.Z. Hawlader, M.N.A. Ahmed, M.I. Salman, B.H. Kerbeet, A.S.
author_sort	Ahmed, H.E.
title	Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
title_short	Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
title_full	Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
title_fullStr	Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
title_full_unstemmed	Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
title_sort	turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators
publishDate	2018
url	http://dspace.uniten.edu.my/jspui/handle/123456789/8498
first_indexed	2018-09-05T08:04:18Z
last_indexed	2018-09-05T08:04:18Z
_version_	1610753935749939200

Turbulent heat transfer and nanofluid flow in a triangular duct with vortex generators

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