The objective of the current investigation is to investigate the entropy generation inside porous media utilizing a pore scale modeling approach. The current investigation improves the thermodynamics performance of the recent analysis (Int. J. Heat Mass Transfer, 2016, 99, pp. 303–316) by considering different cross-sectional configurations and analyzing the thermal system for various Reynolds numbers, porosities, and a comparison between the previous and current investigation. The Nusselt number, the dimensionless volume-averaged entropy generation rate, Bejan number, and performance evaluation criterion (PEC) are all presented and discussed. The dimensionless volume-averaged entropy generation rate was found to increase with increasing Reynolds number, with the increase being higher for lower porosity medium. A slight variation of the dimensionless volume-averaged entropy generation rate is observed for higher Reynolds numbers which is confirmed for both cross-sectional configurations. Examination of the Bejan number demonstrates heat transfer irreversibility (HTI) dominance for most of the Reynolds number ranges examined. The results indicate that the longitudinal elliptical cross-sectional configuration with porosity equals to 0.53 provides superior performance when applying the performance evaluation criterion utilized.
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Heat Transfer and Entropy Generation Analyses of Forced Convection Through Porous Media Using Pore Scale Modeling
Mehrdad Torabi,
Mehrdad Torabi
Young Researchers and Elite Club,
Central Tehran Branch,
Islamic Azad University,
Tehran, Iran
Central Tehran Branch,
Islamic Azad University,
Tehran, Iran
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Mohsen Torabi,
Mohsen Torabi
The George W. Woodruff School
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mails: Mohsen.Torabi@my.cityu.edu.hk;
Mohsen.Torabi@gatech.edu
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mails: Mohsen.Torabi@my.cityu.edu.hk;
Mohsen.Torabi@gatech.edu
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G. P. Peterson
G. P. Peterson
The George W. Woodruff School
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mail: Bud.Peterson@gatech.edu
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mail: Bud.Peterson@gatech.edu
Search for other works by this author on:
Mehrdad Torabi
Young Researchers and Elite Club,
Central Tehran Branch,
Islamic Azad University,
Tehran, Iran
Central Tehran Branch,
Islamic Azad University,
Tehran, Iran
Mohsen Torabi
The George W. Woodruff School
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mails: Mohsen.Torabi@my.cityu.edu.hk;
Mohsen.Torabi@gatech.edu
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mails: Mohsen.Torabi@my.cityu.edu.hk;
Mohsen.Torabi@gatech.edu
G. P. Peterson
The George W. Woodruff School
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mail: Bud.Peterson@gatech.edu
of Mechanical Engineering,
Georgia Institute of Technology,
Atlanta, GA 30332
e-mail: Bud.Peterson@gatech.edu
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received May 22, 2016; final manuscript received July 5, 2016; published online August 30, 2016. Assoc. Editor: Dr. Antonio Barletta.
J. Heat Transfer. Jan 2017, 139(1): 012601 (10 pages)
Published Online: August 30, 2016
Article history
Received:
May 22, 2016
Revised:
July 5, 2016
Citation
Torabi, M., Torabi, M., and Peterson, G. P. (August 30, 2016). "Heat Transfer and Entropy Generation Analyses of Forced Convection Through Porous Media Using Pore Scale Modeling." ASME. J. Heat Transfer. January 2017; 139(1): 012601. https://doi.org/10.1115/1.4034181
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