期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 428, 期 -, 页码 457-463出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2016.12.129
关键词
Viscosity; MnFe2O4/water nanofluid; Magnetic field; Nanoparticle volume fraction
资金
- Research Chair Grant National Science and Technology Development Agency (NSTDA)
- Thailand Research Fund (TRF)
- National Research University Project (NRU)
- King Mongkut's University of Technology Thonburi through the KMUTT 55th Anniversary Commemorative Fund
- King Mongkut's University of Technology Thonburi
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 degrees C) 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 degrees C under no magnetic field, whereas it increments to maximum viscosity ratio of 1.75 at 3 vol% of nanoparticles and 40 degrees C 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.
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