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Sadollah Ebrahimi

Sadollah Ebrahimi

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId: 16177495900
HIndex:
Faculty: Faculty of Science
Address: Department of Physics (Room 533)
Phone: 087-33664600 (4269)

Research

Title
Theoretical Model for Explaining CNTs Diameter and Nanolayer Effects in Enhancement Thermal Conductivity of CNTs Suspensions
Type
Presentation
Keywords
Nanofluid, Nanolayer, Thermal conductivity, Cylindrical nanoparticle
Year
2008
Researchers Sadollah Ebrahimi ، Jamshid Sabbaghzadeh ، Maryamalsadat Lajevardi ، Iraj Hadi

Abstract

We present a theoretical model for explaining the enhancement in the effective thermal conductivity of nanotubes (cylindrical shape particles) for use in nanotube-in-fluid suspensions. We provide a good estimation for the nanolayers thickness which plays an important role in increasing the thermal conductivity. Our theoretical model shows that with the increase volume fraction of carbon nanotubes, the enhancement of thermal conductivity will be considerable if the thickness of nanolayers increases. We also show that the effective thermal conductivity is decreased with cylindrical nanoparticle diameter, which agrees with experimental results.