Analysis of ferrofluid droplet combustion under very large magnetic power

Cristaldo, Cesar; Fachini, Fernando F.

doi:10.1016/j.combustflame.2013.02.021

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…When magnetic nanoparticles are embedded in these droplets, it is possible to accelerate those processes allowing the construction of more compact chambers. [12][13][14] Ferrofluids contain magnetic particles whose mobility can be controlled by a magnetic field. Regarding the applications in MH, the interest is the absorption of large amounts of energy when the magnetization of the particles is reversed.…”

Section: Introductionmentioning

confidence: 99%

“…This way, the magnetic field modifies the temperature profile in such a way that the boiling condition is found inside the droplet, which can be interpreted as bubble formation and droplet rupture. 13,14 This way, magnetic hyperthermia may be used as an extra atomization process to control the size of droplets and, accordingly, the vaporization rate of sprays.…”

Section: Introductionmentioning

confidence: 99%

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A microscopic approach to heating rate of ferrofluid droplets by a magnetic field

Siqueira

Jurelo

et al. 2019

Journal of Applied Physics

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In this work, we study the heating process of colloidal ferrofluids by a magnetic field. The heating of the fluid occurs by the magnetic relaxation of the nanoparticles which provide thermal energy for the host liquid. In the limit of small volumes, the relaxation process occurs through the Néel mechanism since the magnetic nanoparticles present superparamagnetic behavior. Within this limit, we have used a microscopic model for the coupling to phonons and external magnetic field in order to model the relaxation mechanism and to obtain an expression for the heating rate of the fluid as a function of microscopic parameters. The analysis allows determining appropriate conditions for an optimal heating rate for ferrofluids based on superparamagnetic nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%