Forced convection heat transfer of Nano-Encapsulated Phase Change Material (NEPCM) suspension in a mini-channel heatsink

Ho, Ching-Jenq; Liu, Yen Chung; Ghalambaz, Mohammad; Yan, Wei

doi:10.1016/j.ijheatmasstransfer.2020.119858

Cited by 145 publications

(45 citation statements)

References 28 publications

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“…This asymmetric exothermic and endothermic behavior of the peaks is important for the heat-transfer technology. 44 The adsorption/desorption cyclability of four flexible MOFs (MIL-53(Al), ELM-11, SNU-9, and DUT-8(Ni)) was studied at 298 K using nbutane as the test gas. 45 This article presented here has been accepted for publication in CCS Chemistry and is posted at the substances and n-butane as the test gas to compare the thermal response of mesoporous and microporous channels.…”

Section: Molecular Superfluid For Energy Transfermentioning

confidence: 99%

Driving Force of Molecular/Ionic Superfluid Formation

2021

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Ordered-and high-flux flow of molecules and ions in biological channels is considered as quantum-confined superfluid, which is highly important in chemical reaction and bioinformation transmission. However, the driving forces for these ordered arrangements of molecules and ions in the confined space have not been discussed.Here, we demonstrate that the driving force of molecular/ionic superfluid formation is the attraction-repulsion balance of particles under the effect of interfacial confinement, as well as the space-confinement effect enough to reduce the degrees of freedom of the particles and then greatly limit the disorder of their movement. The competition of attractive potential energy (E) with the disorder caused by thermal noise (k B T) results in the phase transition temperature. When |E| > k B T, an ordered structure of the particles can be formed. A superfluid of 4 He atoms is formed below 2.17 K. Molecules or ions can achieve a superfluid at a higher phase transition temperature (near body temperature) under a certain confined distance, e.g., about twice van der Waals equilibrium distance (2d 0 ) for molecules and twice Debye length (2λ D ) for ions and ion-molecules. Owning to the unique characteristic of ultralow resistance for particles transport, molecular/ionic superfluid will have a significant impact in areas such as energy transfer, storage and conversion.

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Section: Molecular Superfluid For Energy Transfermentioning

confidence: 99%

Driving Force of Molecular/Ionic Superfluid Formation

2021

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“…The unique properties in nano‐size make NEPCMs steadily disperse in carrier fluid and ensure its stable application 115 . The force convection heat transfer of NEPCMs‐based PCS in mini‐channel heatsink was experimentally investigated by Ho et al 116 They found that when Reynolds number was low, the heat transfer was improved by 70% in the presence of NEPCMs. On the contrary, the high Reynolds number not only caused the increase of pump power but also reduced the positive effect of NEPCMs on heat transfer.…”

Section: Application Of Mpcmsmentioning

confidence: 99%

Research progress on preparation, characterization, and application of nanoparticle‐based microencapsulated phase change materials

Lin

Zhang

et al. 2021

Int J Energy Res

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Summary As an energy storage material, microencapsulated phase change materials (MPCMs) have become a research hotspot in recent years due to their unique thermophysical properties. However, this material usually has limitations in terms of its performance, such as low encapsulation efficiency, leakage during phase change, poor cycle stability, and high degree of supercooling. To solve these problems, nanoparticle as‐modified material to improve the performance of MPCMs has attracted the attention of both domestic and overseas scholars. This paper aims to review the research progress of MPCMs modified by nanoparticle from three aspects: preparation, performance, and application. In this paper, the preparation method and principle of nanoparticles used for the modification of MPCMs are first introduced. Then, based on different properties (mechanical properties, thermal conductivity, thermal stability, and supercooling), the research works of nanoparticle‐modified MPCMs in recent years are reviewed. Finally, the practical applications of nanocomposite MPCM in the field of slurry, building, asphalt pavement, and battery thermal management are reported.

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“…29 The heat transfer analysis of Williamson blood flow model for a stenotic tube was mathematically interpreted by Akbar et al 30 The heat transfer details combined with dissipation effects and Joule heating for an electro-kinetically developed flow was studied by Sadeghi and Saidi. 31 Moreover, some further recent researches that evaluate blood flow as well as heat transfer are referred by Yan et al, 23 Li et al, 32 Ho et al, 33,34 and Chien et al, 35 The review of literature has shown that the electro-osmotic flow of blood across a multiple stenosed artery is not mathematically considered yet. We have analyzed the electro-kinetic flow of blood across an artery with multiple stenosis.…”

Section: Introductionmentioning

confidence: 99%

Mechanics of non-Newtonian blood flow in an artery having multiple stenosis and electroosmotic effects

et al. 2021

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The electro-osmotically modulated hemodynamic across an artery with multiple stenosis is mathematically evaluated. The non-Newtonian behaviour of blood flow is tackled by utilizing Casson fluid model for this flow problem. The blood flow is confined in such arteries due to the presence of stenosis and this theoretical analysis provides the electro-osmotic effects for blood flow through such arteries. The mathematical equations that govern this flow problem are converted into their dimensionless form by using appropriate transformations and then exact mathematical computations are performed by utilizing Mathematica software. The range of the considered parameters is given as [Formula: see text]. The graphical results involve combine study of symmetric and non-symmetric structure for multiple stenosis. Joule heating effects are also incorporated in energy equation together with viscous effects. Streamlines are plotted for electro-kinetic parameter [Formula: see text] and flow rate [Formula: see text]. The trapping declines in size with incrementing [Formula: see text], for symmetric shape of stenosis. But the size of trapping increases for the non-symmetric case.

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Forced convection heat transfer of Nano-Encapsulated Phase Change Material (NEPCM) suspension in a mini-channel heatsink

Cited by 145 publications

References 28 publications

Driving Force of Molecular/Ionic Superfluid Formation

Driving Force of Molecular/Ionic Superfluid Formation

Research progress on preparation, characterization, and application of nanoparticle‐based microencapsulated phase change materials

Mechanics of non-Newtonian blood flow in an artery having multiple stenosis and electroosmotic effects

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