Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids

Narges Susan Mousavi Kh., Sunil Kumar, Arvind Narayanaswamy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An Eulerian formalism is used to derive the energy equation for a system of magnetic nanoparticles in a fluid (ferrofluid) in the presence of uniform magnetic field. The energy equation proposed here contains an effective heat capacity, which has contributions from: (1) Brownian motion of nanoparticles, (2) magnetic field,(3) temperature, and (4) volume fraction of particles. The modified term quantitatively shows the negligible contribution of the first three factors but the significant effect of concentration of particles in change in heat capacity of ferrofluid. In order to have a better understanding of the problem, the equation is converted to a non dimensional form from which the role of each of physical parameters can be inferred.

Original languageEnglish (US)
Title of host publicationFluids and Thermal Systems; Advances for Process Industries
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages635-644
Number of pages10
EditionPARTS A AND B
ISBN (Print)9780791854921
DOIs
StatePublished - 2011
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: Nov 11 2011Nov 17 2011

Publication series

NameASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
NumberPARTS A AND B
Volume6

Other

OtherASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
CountryUnited States
CityDenver, CO
Period11/11/1111/17/11

ASJC Scopus subject areas

  • Mechanical Engineering

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    Mousavi Kh., N. S., Kumar, S., & Narayanaswamy, A. (2011). Effect of Brownian motion and external magnetic field on the effective heat capacity of ferrofluids. In Fluids and Thermal Systems; Advances for Process Industries (PARTS A AND B ed., pp. 635-644). (ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011; Vol. 6, No. PARTS A AND B). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/imece2011-63985