Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid

Heat transfer and friction characteristics were numerically investigated, employing elliptical tube to increase the heat transfer rate with a minimum increase of pressure drop. The flow rate of the tube was in a range of Reynolds number between 10000 and 100000. The FLUENT software is used to solve...

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Main Authors: Hussein, A.M., Bakar, R.A., Kadirgama, K., Sharma, K.V.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.31010 /
Published: Serbian Society of Heat Transfer Engineers 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84963624358&doi=10.2298%2fTSCI130204003H&partnerID=40&md5=7bf7211b522ecd4fe15c047aac4a221a
http://eprints.utp.edu.my/31010/
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spelling utp-eprints.310102022-03-25T07:53:14Z Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid Hussein, A.M. Bakar, R.A. Kadirgama, K. Sharma, K.V. Heat transfer and friction characteristics were numerically investigated, employing elliptical tube to increase the heat transfer rate with a minimum increase of pressure drop. The flow rate of the tube was in a range of Reynolds number between 10000 and 100000. The FLUENT software is used to solve the governing equation of CFD (continuity, momentum, and energy) by means of a finite volume method. The electrical heater is connected around the elliptical tube to apply uniform heat flux (3000 W/m2) as a boundary condition. Four different volume concentrations in the range of 0.25 to 1 and different TiO2 nanoparticle diameters in the range of 27 nm to 50 nm, dispersed in water are utilized. The CFD numerical results indicate that the elliptical tube can enhance heat transfer and friction factor by approximately 9 and 6 than the circular tube, respectively. The results show that the Nusselt number and friction factor increase with decreasing diameters but increasing volume concentrations of nanoparticles. Serbian Society of Heat Transfer Engineers 2016 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84963624358&doi=10.2298%2fTSCI130204003H&partnerID=40&md5=7bf7211b522ecd4fe15c047aac4a221a Hussein, A.M. and Bakar, R.A. and Kadirgama, K. and Sharma, K.V. (2016) Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid. Thermal Science, 20 (1). pp. 89-97. http://eprints.utp.edu.my/31010/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Heat transfer and friction characteristics were numerically investigated, employing elliptical tube to increase the heat transfer rate with a minimum increase of pressure drop. The flow rate of the tube was in a range of Reynolds number between 10000 and 100000. The FLUENT software is used to solve the governing equation of CFD (continuity, momentum, and energy) by means of a finite volume method. The electrical heater is connected around the elliptical tube to apply uniform heat flux (3000 W/m2) as a boundary condition. Four different volume concentrations in the range of 0.25 to 1 and different TiO2 nanoparticle diameters in the range of 27 nm to 50 nm, dispersed in water are utilized. The CFD numerical results indicate that the elliptical tube can enhance heat transfer and friction factor by approximately 9 and 6 than the circular tube, respectively. The results show that the Nusselt number and friction factor increase with decreasing diameters but increasing volume concentrations of nanoparticles.
format Article
author Hussein, A.M.
Bakar, R.A.
Kadirgama, K.
Sharma, K.V.
spellingShingle Hussein, A.M.
Bakar, R.A.
Kadirgama, K.
Sharma, K.V.
Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
author_sort Hussein, A.M.
title Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
title_short Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
title_full Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
title_fullStr Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
title_full_unstemmed Heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
title_sort heat transfer enhancement with elliptical tube under turbulent flow tio2-water nanofluid
publisher Serbian Society of Heat Transfer Engineers
publishDate 2016
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84963624358&doi=10.2298%2fTSCI130204003H&partnerID=40&md5=7bf7211b522ecd4fe15c047aac4a221a
http://eprints.utp.edu.my/31010/
_version_ 1741197504414744576
score 11.62408

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