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CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe

The effects of subcooled flow boiling of nanofluids (Al2O3/water and Cu/water) through a vertical heated pipe are investigated numerically considering a number real flow factors such as uneven particle distributions and particle deposition on the wall surface. The results from the Eulerian–Eulerian...

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Main Authors: Behroyan, Iman, Ganesan, Poo Balan, He, Shuisheng, Sivasankaran, Sivanandam
Format: Article
Published: Taylor & Francis 2018
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/22325/
https://doi.org/10.1080/10407782.2017.1420299
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spelling my.um.eprints.223252019-09-13T02:49:26Z http://eprints.um.edu.my/22325/ CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe Behroyan, Iman Ganesan, Poo Balan He, Shuisheng Sivasankaran, Sivanandam TJ Mechanical engineering and machinery The effects of subcooled flow boiling of nanofluids (Al2O3/water and Cu/water) through a vertical heated pipe are investigated numerically considering a number real flow factors such as uneven particle distributions and particle deposition on the wall surface. The results from the Eulerian–Eulerian two-phase model (liquid/nanofluid–gas) and those of the Eulerian–Lagrangian three-phase model (liquid–gas particles) are compared in detail. For the heat transfer coefficient prediction, the latter model gives about 6% error, whereas the Eulerian–Eulerian model gives about 12% error when it is compared with Chen’s correlation. The uneven distribution of nanoparticles concentrations, i.e., lower near the tube wall and higher at the pipe center, is well predicted by the Eulerian–Lagrangian model. On top that, for the first time, the changes on heating surface wettability induced by nanoparticles deposition is included via user define functions. Taylor & Francis 2018 Article PeerReviewed Behroyan, Iman and Ganesan, Poo Balan and He, Shuisheng and Sivasankaran, Sivanandam (2018) CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe. Numerical Heat Transfer, Part A: Applications, 73 (1). pp. 55-74. ISSN 1040-7782 https://doi.org/10.1080/10407782.2017.1420299 doi:10.1080/10407782.2017.1420299
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 TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Behroyan, Iman
Ganesan, Poo Balan
He, Shuisheng
Sivasankaran, Sivanandam
CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
description The effects of subcooled flow boiling of nanofluids (Al2O3/water and Cu/water) through a vertical heated pipe are investigated numerically considering a number real flow factors such as uneven particle distributions and particle deposition on the wall surface. The results from the Eulerian–Eulerian two-phase model (liquid/nanofluid–gas) and those of the Eulerian–Lagrangian three-phase model (liquid–gas particles) are compared in detail. For the heat transfer coefficient prediction, the latter model gives about 6% error, whereas the Eulerian–Eulerian model gives about 12% error when it is compared with Chen’s correlation. The uneven distribution of nanoparticles concentrations, i.e., lower near the tube wall and higher at the pipe center, is well predicted by the Eulerian–Lagrangian model. On top that, for the first time, the changes on heating surface wettability induced by nanoparticles deposition is included via user define functions.
format Article
author Behroyan, Iman
Ganesan, Poo Balan
He, Shuisheng
Sivasankaran, Sivanandam
author_facet Behroyan, Iman
Ganesan, Poo Balan
He, Shuisheng
Sivasankaran, Sivanandam
author_sort Behroyan, Iman
title CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
title_short CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
title_full CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
title_fullStr CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
title_full_unstemmed CFD models comparative study on nanofluids subcooled flow boiling in a vertical pipe
title_sort cfd models comparative study on nanofluids subcooled flow boiling in a vertical pipe
publisher Taylor & Francis
publishDate 2018
url http://eprints.um.edu.my/22325/
https://doi.org/10.1080/10407782.2017.1420299
_version_ 1646210209056555008
score 13.211869

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