Soret and Dufour effects on convective instabilities in binary nanofluids for absorption application

Jake Kim; Yong Tae Kang; Chang Kyun Choi

doi:10.1016/j.ijrefrig.2006.04.005

Soret and Dufour effects on convective instabilities in binary nanofluids for absorption application

Jake Kim, Yong Tae Kang, Chang Kyun Choi

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

Abstract

Thermodiffusion (Soret effect) and diffusionthermo (Dufour effect) effects on convective instabilities in nanofluids have been theoretically investigated. Thermodiffusion implies that mass diffusion is induced by thermal gradient, which is so-called the Soret effect. Diffusionthermo implies that heat transfer is induced by concentration gradient, which is so-called the Dufour effect. By using the linear stability theory under one-fluid model, a characteristic dimensionless parameter was newly obtained. From the instability analysis with given conditions, it is found that the convective motion in nanofluids sets in easily as the Soret and Dufour effects and the initial concentration of nanoparticles increase.

Original language	English
Pages (from-to)	323-328
Number of pages	6
Journal	International Journal of Refrigeration
Volume	30
Issue number	2
DOIs	https://doi.org/10.1016/j.ijrefrig.2006.04.005
Publication status	Published - 2007 Mar
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by Korea Science and Engineering Foundation Grant (R01-2004-000-10736-0).

Keywords

Absorption system
Colloidal suspension
Diffusion
Heat transfer
Nanofluid
Particle
Refrigeration
Thermal conductivity

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering

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10.1016/j.ijrefrig.2006.04.005

Cite this

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title = "Soret and Dufour effects on convective instabilities in binary nanofluids for absorption application",

abstract = "Thermodiffusion (Soret effect) and diffusionthermo (Dufour effect) effects on convective instabilities in nanofluids have been theoretically investigated. Thermodiffusion implies that mass diffusion is induced by thermal gradient, which is so-called the Soret effect. Diffusionthermo implies that heat transfer is induced by concentration gradient, which is so-called the Dufour effect. By using the linear stability theory under one-fluid model, a characteristic dimensionless parameter was newly obtained. From the instability analysis with given conditions, it is found that the convective motion in nanofluids sets in easily as the Soret and Dufour effects and the initial concentration of nanoparticles increase.",

keywords = "Absorption system, Colloidal suspension, Diffusion, Heat transfer, Nanofluid, Particle, Refrigeration, Thermal conductivity",

author = "Jake Kim and Kang, {Yong Tae} and Choi, {Chang Kyun}",

note = "Funding Information: This work was supported by Korea Science and Engineering Foundation Grant (R01-2004-000-10736-0).",

year = "2007",

month = mar,

doi = "10.1016/j.ijrefrig.2006.04.005",

language = "English",

volume = "30",

pages = "323--328",

journal = "International Journal of Refrigeration",

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T1 - Soret and Dufour effects on convective instabilities in binary nanofluids for absorption application

AU - Kim, Jake

AU - Kang, Yong Tae

AU - Choi, Chang Kyun

N1 - Funding Information: This work was supported by Korea Science and Engineering Foundation Grant (R01-2004-000-10736-0).

PY - 2007/3

Y1 - 2007/3

N2 - Thermodiffusion (Soret effect) and diffusionthermo (Dufour effect) effects on convective instabilities in nanofluids have been theoretically investigated. Thermodiffusion implies that mass diffusion is induced by thermal gradient, which is so-called the Soret effect. Diffusionthermo implies that heat transfer is induced by concentration gradient, which is so-called the Dufour effect. By using the linear stability theory under one-fluid model, a characteristic dimensionless parameter was newly obtained. From the instability analysis with given conditions, it is found that the convective motion in nanofluids sets in easily as the Soret and Dufour effects and the initial concentration of nanoparticles increase.

AB - Thermodiffusion (Soret effect) and diffusionthermo (Dufour effect) effects on convective instabilities in nanofluids have been theoretically investigated. Thermodiffusion implies that mass diffusion is induced by thermal gradient, which is so-called the Soret effect. Diffusionthermo implies that heat transfer is induced by concentration gradient, which is so-called the Dufour effect. By using the linear stability theory under one-fluid model, a characteristic dimensionless parameter was newly obtained. From the instability analysis with given conditions, it is found that the convective motion in nanofluids sets in easily as the Soret and Dufour effects and the initial concentration of nanoparticles increase.

KW - Absorption system

KW - Colloidal suspension

KW - Diffusion

KW - Heat transfer

KW - Nanofluid

KW - Particle

KW - Refrigeration

KW - Thermal conductivity

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DO - 10.1016/j.ijrefrig.2006.04.005

M3 - Article

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SN - 0140-7007

VL - 30

SP - 323

EP - 328

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

IS - 2

ER -

Soret and Dufour effects on convective instabilities in binary nanofluids for absorption application

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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