Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid
This paper numerically examines laminar natural convection in a sinusoidal corrugated enclosure with a discrete heat source on the bottom wall, filled by pure water, Al 2 O 3 /water nanofluid, and Al 2 O 3 -Cu/water hybrid nanofluid which is a new advanced nanofluid with two kinds of nanoparticle ma...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
SAGE Publishing
2014-03-01
|
Series: | Advances in Mechanical Engineering |
Online Access: | https://doi.org/10.1155/2014/147059 |
id |
doaj-406b53e2257145a0b37781d775dfac51 |
---|---|
record_format |
Article |
spelling |
doaj-406b53e2257145a0b37781d775dfac512020-11-25T03:24:44ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322014-03-01610.1155/2014/14705910.1155_2014/147059Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid NanofluidBehrouz Takabi0Saeed Salehi1 Young Researchers Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 1439957131, IranThis paper numerically examines laminar natural convection in a sinusoidal corrugated enclosure with a discrete heat source on the bottom wall, filled by pure water, Al 2 O 3 /water nanofluid, and Al 2 O 3 -Cu/water hybrid nanofluid which is a new advanced nanofluid with two kinds of nanoparticle materials. The effects of Rayleigh number (10 3 ≤Ra≤10 6 ) and water, nanofluid, and hybrid nanofluid (in volume concentration of 0% ≤ ϕ ≤ 2%) as the working fluid on temperature fields and heat transfer performance of the enclosure are investigated. The finite volume discretization method is employed to solve the set of governing equations. The results indicate that for all Rayleigh numbers been studied, employing hybrid nanofluid improves the heat transfer rate compared to nanofluid and water, which results in a better cooling performance of the enclosure and lower temperature of the heated surface. The rate of this enhancement is considerably more at higher values of Ra and volume concentrations. Furthermore, by applying the modeling results, two correlations are developed to estimate the average Nusselt number. The results reveal that the modeling data are in very good agreement with the predicted data. The maximum error for nanofluid and hybrid nanofluid was around 11% and 12%, respectively.https://doi.org/10.1155/2014/147059 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Behrouz Takabi Saeed Salehi |
spellingShingle |
Behrouz Takabi Saeed Salehi Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid Advances in Mechanical Engineering |
author_facet |
Behrouz Takabi Saeed Salehi |
author_sort |
Behrouz Takabi |
title |
Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid |
title_short |
Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid |
title_full |
Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid |
title_fullStr |
Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid |
title_full_unstemmed |
Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid |
title_sort |
augmentation of the heat transfer performance of a sinusoidal corrugated enclosure by employing hybrid nanofluid |
publisher |
SAGE Publishing |
series |
Advances in Mechanical Engineering |
issn |
1687-8132 |
publishDate |
2014-03-01 |
description |
This paper numerically examines laminar natural convection in a sinusoidal corrugated enclosure with a discrete heat source on the bottom wall, filled by pure water, Al 2 O 3 /water nanofluid, and Al 2 O 3 -Cu/water hybrid nanofluid which is a new advanced nanofluid with two kinds of nanoparticle materials. The effects of Rayleigh number (10 3 ≤Ra≤10 6 ) and water, nanofluid, and hybrid nanofluid (in volume concentration of 0% ≤ ϕ ≤ 2%) as the working fluid on temperature fields and heat transfer performance of the enclosure are investigated. The finite volume discretization method is employed to solve the set of governing equations. The results indicate that for all Rayleigh numbers been studied, employing hybrid nanofluid improves the heat transfer rate compared to nanofluid and water, which results in a better cooling performance of the enclosure and lower temperature of the heated surface. The rate of this enhancement is considerably more at higher values of Ra and volume concentrations. Furthermore, by applying the modeling results, two correlations are developed to estimate the average Nusselt number. The results reveal that the modeling data are in very good agreement with the predicted data. The maximum error for nanofluid and hybrid nanofluid was around 11% and 12%, respectively. |
url |
https://doi.org/10.1155/2014/147059 |
work_keys_str_mv |
AT behrouztakabi augmentationoftheheattransferperformanceofasinusoidalcorrugatedenclosurebyemployinghybridnanofluid AT saeedsalehi augmentationoftheheattransferperformanceofasinusoidalcorrugatedenclosurebyemployinghybridnanofluid |
_version_ |
1724600239210364928 |