Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels

ABSTRACT In the present research, the entropy generation (EG) for a nanofluid through vertical channels is analyzed numerically. The water‐based suspension of alumina nanoparticles with different volume fractions is considered a heat transfer fluid. The nanofluid flow in the channel is under the eff...

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Main Authors: S. E. Ghasemi, A. A. Ranjbar
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Engineering Reports
Subjects:
Online Access:https://doi.org/10.1002/eng2.13096
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author S. E. Ghasemi
A. A. Ranjbar
author_facet S. E. Ghasemi
A. A. Ranjbar
author_sort S. E. Ghasemi
collection DOAJ
description ABSTRACT In the present research, the entropy generation (EG) for a nanofluid through vertical channels is analyzed numerically. The water‐based suspension of alumina nanoparticles with different volume fractions is considered a heat transfer fluid. The nanofluid flow in the channel is under the effects of forced and natural convection simultaneously. For EG assessment, the values of EG number, Bejan number, EG ratio, and average EG number are evaluated comprehensively. The effect of changes in some parameters including Brinkman (Br) number, temperature difference, and concentration of nanoparticles in EG evaluation will be assessed. The results show that by increasing the temperature difference, the EG number is enhanced. Also from the results, the Bejan number increases by reducing the temperature difference.
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institution Kabale University
issn 2577-8196
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publishDate 2025-01-01
publisher Wiley
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spelling doaj-art-e0ccf3f9ba4d458c9bcf88653497a79f2025-01-31T00:22:49ZengWileyEngineering Reports2577-81962025-01-0171n/an/a10.1002/eng2.13096Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical ChannelsS. E. Ghasemi0A. A. Ranjbar1Department of Engineering Sciences Hakim Sabzevari University Sabzevar IranSchool of Mechanical Engineering Babol University of Technology Babol IranABSTRACT In the present research, the entropy generation (EG) for a nanofluid through vertical channels is analyzed numerically. The water‐based suspension of alumina nanoparticles with different volume fractions is considered a heat transfer fluid. The nanofluid flow in the channel is under the effects of forced and natural convection simultaneously. For EG assessment, the values of EG number, Bejan number, EG ratio, and average EG number are evaluated comprehensively. The effect of changes in some parameters including Brinkman (Br) number, temperature difference, and concentration of nanoparticles in EG evaluation will be assessed. The results show that by increasing the temperature difference, the EG number is enhanced. Also from the results, the Bejan number increases by reducing the temperature difference.https://doi.org/10.1002/eng2.13096Bejan numberentropy generationheat transfernanofluidnumerical study
spellingShingle S. E. Ghasemi
A. A. Ranjbar
Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
Engineering Reports
Bejan number
entropy generation
heat transfer
nanofluid
numerical study
title Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
title_full Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
title_fullStr Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
title_full_unstemmed Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
title_short Entropy Generation Study on Natural and Forced Convection of Nanofluid Flow in Vertical Channels
title_sort entropy generation study on natural and forced convection of nanofluid flow in vertical channels
topic Bejan number
entropy generation
heat transfer
nanofluid
numerical study
url https://doi.org/10.1002/eng2.13096
work_keys_str_mv AT seghasemi entropygenerationstudyonnaturalandforcedconvectionofnanofluidflowinverticalchannels
AT aaranjbar entropygenerationstudyonnaturalandforcedconvectionofnanofluidflowinverticalchannels