Effect of a discrete heat source location on entropy generation in mixed convective cooling of a nanofluid inside the ventilated cavity

Mahmoudi, Amir Houshang and Hooman, Kamel (2013) Effect of a discrete heat source location on entropy generation in mixed convective cooling of a nanofluid inside the ventilated cavity. International Journal of Exergy, 13 3: 299-319. doi:10.1504/IJEX.2013.057353

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads

Author Mahmoudi, Amir Houshang
Hooman, Kamel
Title Effect of a discrete heat source location on entropy generation in mixed convective cooling of a nanofluid inside the ventilated cavity
Journal name International Journal of Exergy   Check publisher's open access policy
ISSN 1742-8297
1742-8300
Publication date 2013-01
Sub-type Article (original research)
DOI 10.1504/IJEX.2013.057353
Open Access Status
Volume 13
Issue 3
Start page 299
End page 319
Total pages 21
Place of publication Olney, Bucks, United Kingdom
Publisher Inderscience Publishers
Collection year 2014
Language eng
Abstract In this paper, the effect of localised heat sources on entropy generation owing to mixed convection flow in a vented square cavity has been studied numerically. Laminar steady forced convection flow of copper-water nanofluid through the cavity has been affected by density variations as a result of heat input from a wall-mounted heat source. To investigate the effect of the heat source location, three different placement configurations of the heat source have been considered. Furthermore, to further generalise the results, three different non-uniform heat flux conditions were also examined. The entropy generation rate has been analysed for Richardson numbers 0 ≤Ri ≤10 and for solid volume fraction within 0 ≤φ ≤0.05. With either uniform or non-uniform wall heating, the entropy generation rate is found to be minimal when the heat source and cavity exit are on the same wall. The maximum heat transfer rate, however, corresponds to the case when the main flow is parallel to the heated wall.
Keyword Entropy generation
Nanofluid
Mixed convection
Numerical study
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 24 Nov 2013, 00:23:28 EST by System User on behalf of School of Mechanical and Mining Engineering