Experimental study on viscosity of spinel-type manganese ferrite nanofluid in attendance of magnetic field
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Author list: Amani M., Amani P., Kasaeian A., Mahian O., Kasaeian F., Wongwises S.
Publisher: Elsevier
Publication year: 2017
Journal: Journal of Magnetism and Magnetic Materials (0304-8853)
Volume number: 428
Start page: 457
End page: 463
Number of pages: 7
ISSN: 0304-8853
eISSN: 1873-4766
Languages: English-Great Britain (EN-GB)
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Abstract
In this paper, an experimental evaluation on the viscosity of water-based manganese ferrite nanofluid with and without magnetic field with 100, 200, 300, and 400 G intensities has been conducted. The Brookfield DV-I PRIME viscometer is implemented to measure the MnFe2O4/water nanofluid viscosity and to evaluate the influence of different volume concentrations (from 0.25% to 3%) and various temperatures (from 20 to 60 ฐC) on the viscosity. According to the measurements, viscosity incrementally increases with the augmentation of nanoparticles concentration while it remarkably decreases at higher temperatures under absence and attendance of magnetic field. The maximum viscosity ratio of 1.14 is achieved at 3 vol% of nanoparticles and 20 ฐC under no magnetic field, whereas it increments to maximum viscosity ratio of 1.75 at 3 vol% of nanoparticles and 40 ฐC under 400 G magnetic field. Furthermore, new correlation is proposed for determination of viscosity of MnFe2O4/water nanofluids in terms of magnetic field intensity, volume concentration and temperature. ฉ 2017 Elsevier B.V.
Keywords
Magnetic field, MnFe2O4/water nanofluid, Nanoparticle volume fraction
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