Critical analysis of the thermal conductivity models for CNT based nanofluids

Lamas, Bruno; Abreu, Bruno; Fonseca, A.; Martins, Nélson; Oliveira, Mónica

doi:10.1016/j.ijthermalsci.2013.11.017

Cited by 43 publications

(29 citation statements)

References 70 publications

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“…The topology of the network increases the conductivity by constructing preferential directions for heat conduction. Now, when the structure evolves according to the DMA, the observations are similar to what can be found in [31]. In fact, a homogeneous nanofluid is described as the dispersion of a discontinuous phase in a continuous one.…”

Section: Numerical Resultssupporting

confidence: 73%

Thermal Conductivity of Suspension of Aggregating Nanometric Rods

Ammar

Chinesta

Heyd

2016

Entropy

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Enhancing thermal conductivity of simple fluids is of major interest in numerous applicative systems. One possibility of enhancing thermal properties consists of dispersing small conductive particles inside. However, in general, aggregation effects occur and then one must address systems composed of dispersed clusters composed of particles as well as the ones related to percolated networks. This papers analyzes the conductivity enhancement of different microstructures scaling from clusters dispersed into a simple matrix to the ones related to percolated networks exhibiting a fractal morphology.

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Section: Numerical Resultssupporting

confidence: 73%

Thermal Conductivity of Suspension of Aggregating Nanometric Rods

Ammar

Chinesta

Heyd

2016

Entropy

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“…CNT-based nanofluids exhibit the highest enhancement on effective thermal conductivity under the same experimental conditions [195]. This condition is explained by the high thermal conductivity and geometrical aspect of individual CNTs [192,196].…”

Section: Thermal and Rheological Properties Of Nanofluidsmentioning

confidence: 77%

“…These mechanisms include the Brownian motion of particles, nanolayer structure at the interface nanoparticle medium, and nanoparticle clustering or agglomeration [192]. Keblinski et al [41] proposed to neglect the Brownian motion because the theoretical Brownian diffusion of nanoparticles is slower than thermal diffusion of the base fluid.…”

Section: Thermal and Rheological Properties Of Nanofluidsmentioning

confidence: 99%

“…However, Kapitza resistance at the nanoparticle medium interface could negatively affect possible enhancements from the nanolayer structure. A recent benchmark study suggested that effective thermal conductivity of nanofluids depends on the effective medium theory, which states that spatial distribution of particles in the medium is the key to observed enhancements [192]. The most commonly studied nanoparticles in thermal nanofluid engineering include Cu, CuO, Al 2 O 3 , and CNTs [193,194].…”

Section: Thermal and Rheological Properties Of Nanofluidsmentioning

confidence: 99%

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A comprehensive review of thermo-physical properties and convective heat transfer to nanofluids

Solangi

Kazi

Luhur

et al. 2015

Energy

239

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“…transporting across a common surface. Some researchers have suggested that Kaptiza resistance can play an influential role in the dynamics of thermal flow [80][81][82]. In some studies, the Maxwell model had been reworked with some modifications to account for the effect of interface thermal resistance.…”

Section: Heat Transfer Mechanismmentioning

confidence: 99%

Review on Synthesis, Thermo-Physical Property, and Heat Transfer Mechanism of Nanofluids

Patil

Seo²,

Kang

et al. 2016

Energies

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Nanofluids are suspended nano-sized particles in a base fluid. With increasing demand for more high efficiency thermal systems, nanofluids seem to be a promising option for researchers. As a result, numerous investigations have been undertaken to understand the behaviors of nanofluids. Since their discovery, the thermo-physical properties of nanofluids have been under intense research. Inadequate understanding of the mechanisms involved in the heat transfer of nanofluids has been the major obstacle for the development of sophisticated nanofluids with the desired properties. In this comprehensive review paper, investigations on synthesis, thermo-physical properties, and heat transfer mechanisms of nanofluids have been reviewed and presented. Results show that the thermal conductivity of nanofluids increases with the increase of the operating temperature. This can potentially be used for the efficiency enhancement of thermal systems under higher operating temperatures. In addition, this paper also provides details concerning dependency of the thermo-physical properties as well as synthesis and the heat transfer mechanism of the nanofluids.

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Critical analysis of the thermal conductivity models for CNT based nanofluids

Cited by 43 publications

References 70 publications

Thermal Conductivity of Suspension of Aggregating Nanometric Rods

Thermal Conductivity of Suspension of Aggregating Nanometric Rods

A comprehensive review of thermo-physical properties and convective heat transfer to nanofluids

Review on Synthesis, Thermo-Physical Property, and Heat Transfer Mechanism of Nanofluids

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