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General Information
    • ISSN: 2010-3697
    • Frequency: Bimonthly
    • DOI: 10.7763/IJMO
    • Editor-in-Chief: Prof. Adrian Olaru
    • Executive Editor: Ms.Yoyo Y. Zhou
    • Abstracting/ Indexing: Engineering & Technology Digital Library, ProQuest, Crossref, Electronic Journals Library, Google Scholar, EI (INSPEC, IET).
    • E-mail ijmo@iacsitp.com
Editor-in-chief
Prof. Adrian Olaru
University Politehnica of Bucharest, Romania
I'm happy to take on the position of editor in chief of IJMO. It's a journal that shows promise of becoming a recognized journal in the area of modelling and optimization. I'll work together with the editors to help it progress.
IJMO 2012 Vol.2(1): 75-82 ISSN: 2010-3697
DOI: 10.7763/IJMO.2011.V1.89

Fuzzy Logic to Model the Free Convection Heat Transfer from Horizontal Isothermal Cylinders Arranged in Vertical and Inclined Arrays

Ehsan Rezaei, Alimohammad Karami, Tooraj Yousefi, Masood Aghakhani, and Maziar Mahdipour Jalilian

Abstract—This paper highlights the application of fuzzy logic to predict the free convection heat transfer from horizontal isothermal cylinders arranged in vertical and inclined arrays. Experiments included cylinder spacing (center-to-center) varying from 2 to 5 times the cylinder diameter and horizontal spacing ranging from 0 to 2 times the cylinder diameter in inclined array. Also, Rayleigh number based on the cylinder diameter varied from 10 3 to 3×10 3. It was observed that the increase of cylinder spacing in vertical and inclined array and horizontal spacing in inclined array results in heat transfer increase from the array. Moreover, it was shown that, fuzzy logic is a powerful technique used for predicting the heat transfer due to its low error rate. The average error of fuzzy technique as compared with experimental data was found to be 0.081 % for this study.

Index Terms—Free convection, Heat transfer, Isothermal cylinders, Inclined Arrays, Modeling, Fuzzy logic.

E. Rezaei is with the Mechanical Engineering Department, Kermanshah University of Technology, Kermanshah, Iran (e-mail: Ehsan.rezaei@yahoo.com).
A. Karami is with the Mechanical Engineering Department, Kermanshah University of Technology, Kermanshah, Iran (e-mail: Alimohammad.karami@yahoo.com).
T. Yousefi is with the Mechanical Engineering Department, Razi University, Kermanshah, Iran (e-mail: t.yousefi2686@ yahoo.com).
M. Aghakhani is with the Mechanical Engineering Department, Razi University, Kermanshah, Iran (aghakhani@razi.ac.ir).
M. Mahdipour Jalilian is with the Mechanical Engineering Department, Razi University, Kermanshah, Iran (e-mail: Maziar.1986.2000@gmail.com)

[PDF]

Cite: Ehsan Rezaei, Alimohammad Karami, Tooraj Yousefi, Masood Aghakhani, and Maziar Mahdipour Jalilian, "Fuzzy Logic to Model the Free Convection Heat Transfer from Horizontal Isothermal Cylinders Arranged in Vertical and Inclined Arrays," International Journal of Modeling and Optimization vol. 2, no. 1, pp. 75-82, 2012.

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