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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Experimental investigation and modeling of thermal conductivity and viscosity for non-Newtonian hybrid nanofluid containing coated CNT/Fe3O4 nanoparticles  [2017]

Shahsavar, Amin; Bahiraei, Mehdi;

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The thermal conductivity and viscosity of the water-based hybrid nanofluid containing both Fe3O4 magnetic nanoparticles and carbon nanotubes (CNTs) are measured at the temperatures between 25 and 55°C, Fe3O4 volume concentrations between 0.1 and 0.9%, and CNT volume concentrations between 0 and 1.35%. To prevent agglomeration and sedimentation of particles, Tetramethylammonium Hydroxide (TMAH) and Gum Arabic (GA) are utilized for coating Fe3O4 nanoparticles and CNTs, respectively. Owing to the interaction between the molecules of these two surfactants, the magnetic nanoparticles and CNTs are connected physically. The variations of the thermal conductivity and viscosity in terms of temperature and both concentrations are evaluated and discussed. A non-Newtonian behavior is observed for this nanofluid, such that its viscosity decreases by the shear rate increment. Using the experimental data, two Artificial Neural Network (ANN) models are developed for prediction of the thermal conductivity and viscosity in terms of effective parameters. The mentioned models have a proper ability to predict these properties.
From the journal
Powder technology
ISSN : 0032-5910

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2018
Volume:
318
Issue:
16
Extent:
441-450
Publisher:
Elsevier B.V.
All titles:
"Experimental investigation and modeling of thermal conductivity and viscosity for non-Newtonian hybrid nanofluid containing coated CNT/Fe3O4 nanoparticles"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2018
Volume:
318
Issue:
16
Extent:
441-450
Publisher:
Elsevier B.V.
All titles:
"Experimental investigation and modeling of thermal conductivity and viscosity for non-Newtonian hybrid nanofluid containing coated CNT/Fe3O4 nanoparticles"@eng