Surveying and Comparing Thermal Conductivity and Physical Properties of Oil Base NanoFluids Containing Carbon and Metal Oxide Nanotubes | Zendy

Ehsanollah Ettefaghi | Zendy; Hojjat Ahmadi | Zendy; Alimorad Rashidi | Zendy; Seyed Saeid Mohtasebi | Zendy; Amideddin Nouralishahi | Zendy

Open Access

Surveying and Comparing Thermal Conductivity and Physical Properties of Oil Base NanoFluids Containing Carbon and Metal Oxide Nanotubes

Author(s) -

Ehsanollah Ettefaghi,

Hojjat Ahmadi,

Alimorad Rashidi,

Seyed Saeid Mohtasebi,

Amideddin Nouralishahi

Publication year - 2012

Publication title -

doaj (doaj: directory of open access journals)

Language(s) - English

DOI - 10.7508/jns.2012.04.001

Subject(s) - nanofluid , carbon nanotube , thermal conductivity , oxide , materials science , metal , base (topology) , base oil , chemical engineering , thermal , carbon fibers , nanotechnology , composite material , thermodynamics , nanoparticle , metallurgy , composite number , mathematics , scanning electron microscope , engineering , mathematical analysis , physics

In this research, nano materials with tubular structures are added to SAE 20W50 engine oil to study the rate of their effects on the properties of engine oil. Multi-walled carbon nanotubes (MWCNTs) and vanadium oxide nanotubes (VONTs) has been used as two different additive materials, one of them is carbonic and the other is metallic oxides and their effect on different parameters containing viscosity, thermal conductivity coefficient, flash point and pour point of engine oil as the quality properties of engine oil has been studied and compared. The samples of two concentrations 0.1 and 0.2 wt% with using planetary ball mill were made. The obtained results show that MWCNTs in all cases, which have been evaluated, had better functionality with respect to vanadium oxide nanotubes. In the 0.1 wt% concentration, flash point of MWCNTs/oil and VONTs/oil increased about 9.3% and 5.8% respectively. In addition, thermal conductivity of them increased 13.2% and 10.2% respectively

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