The effect of pore size and porosity on thermal management performance of phase change material infiltrated microcellular metal foams

Sundarram, Sriharsha Srinivas; Li, Wei

doi:10.1016/j.applthermaleng.2013.11.072

Cited by 189 publications

(37 citation statements)

References 27 publications

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“…[24], which are summarized below as: It should be mentioned that Eqs. (16)- (18) have been verified against pore-scale simulation results based on a body-centeredcubic (BCC) model [25], which is similar to the present sphere-centered tetrakaidecahedron model for open-cell metal foam.…”

Section: Volume-averaged Numerical Simulationmentioning

confidence: 94%

“…In contrast to the macroscopic approach, few studies [17][18][19] performed pore-scale simulation on phase change heat transfer in metal foams. Hu and Patnalk [17] modeled PCM in a micro-foam using pore-scale numerical simulation with natural convection of the liquid PCM ignored.…”

Section: Introductionmentioning

confidence: 97%

“…Hu and Patnalk [17] modeled PCM in a micro-foam using pore-scale numerical simulation with natural convection of the liquid PCM ignored. Using pore-scale simulation, Sundarram and Li [18] investigated the effects of pore size and porosity of microcellular metal foam on phase change heat transfer. Their results indicated that the velocity of PCM movement during melting is insignificantly small (on the order of 10 À8 m/s).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam

Feng

Shi

et al. 2015

International Journal of Heat and Mass Transfer

151

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Section: Volume-averaged Numerical Simulationmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam

Feng

Shi

et al. 2015

International Journal of Heat and Mass Transfer

151

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“…Since the thermal conductivity of the metal foam is usually two or three orders of magnitude higher than that of the PCM, the thermal non-equilibrium effects between the PCM and metal foam may play a significant role. Therefore, the local thermal non-equilibrium (LTNE) model (also called the two-temperature model) has been widely employed for numerical studies [14][15][16][17][18][19][20][21][22][23]. However, most of the previous numerical studies [13][14][15][16][17][18][19][20] for solid-liquid phase change heat transfer in metal foams were carried out using conventional numerical methods [mainly finite-volume method (FVM)] based on the discretization of the macroscopic continuum equations.…”

Section: Introductionmentioning

confidence: 99%

Enthalpy-based multiple-relaxation-time lattice Boltzmann method for solid-liquid phase-change heat transfer in metal foams

Liu¹,

He²,

Li³

2017

Phys. Rev. E

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In this paper, an enthalpy-based multiple-relaxation-time (MRT) lattice Boltzmann (LB) method is developed for solid-liquid phase-change heat transfer in metal foams under the local thermal nonequilibrium (LTNE) condition. The enthalpy-based MRT-LB method consists of three different MRT-LB models: one for flow field based on the generalized non-Darcy model, and the other two for phase-change material (PCM) and metal-foam temperature fields described by the LTNE model. The moving solid-liquid phase interface is implicitly tracked through the liquid fraction, which is simultaneously obtained when the energy equations of PCM and metal foam are solved. The present method has several distinctive features. First, as compared with previous studies, the present method avoids the iteration procedure; thus it retains the inherent merits of the standard LB method and is superior to the iteration method in terms of accuracy and computational efficiency. Second, a volumetric LB scheme instead of the bounce-back scheme is employed to realize the no-slip velocity condition in the interface and solid phase regions, which is consistent with the actual situation. Last but not least, the MRT collision model is employed, and with additional degrees of freedom, it has the ability to reduce the numerical diffusion across the phase interface induced by solid-liquid phase change. Numerical tests demonstrate that the present method can serve as an accurate and efficient numerical tool for studying metal-foam enhanced solid-liquid phase-change heat transfer in latent heat storage. Finally, comparisons and discussions are made to offer useful information for practical applications of the present method.

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“…The results showed that the influence of pore size was less obvious than that of porosity. Sundarram et al [13] used numerical method to analyze metal foam/PCM composite thermal management system, and the results presented that at a fixed porosity, a smaller pore size of the metal foam led to a longer time period, that the temperature of the heat source remained nearly constant. Zhou et al [14] compared composite of copper foam/paraffin and expanded graphite/paraffin through experimental method, and found that the former had better heat-transfer performance.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Studies on the Heat Transfer Performance of Copper Foam Filled with Paraffin

Zheng

Wang

2017

Energies

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Abstract:The pore-scale numerical works on the effective thermal conductivity and melting process of copper foam filled with paraffin, and a phase-change material (PCM) with low thermal conductivity, were conducted by utilizing the two-dimensional (2D) hexahedron Calmidi-Mahajan (C-M) model and the three-dimensional (3D) dodecahedron Boomsma-Poulikakos (B-P) model. The unidirectional heat transfer experiment was established to investigate the effective thermal conductivity of the composite. The simulation results of the effective thermal conductivity of the composite in 2D C-M model were 6.93, 5.41, 4.22 and 2.75 W/(m·K), for porosity of 93%, 95%, 96% and 98% respectively, while the effective thermal conductivity of the composite in 3D B-P model were 7.07, 5.24, 3.07 and 1.22 W/(m·K). The simulated results were in agreement with the experimental data obtained for the composite. It was found that the copper foam can effectively enhance the thermal conductivity of the paraffin, i.e., the smaller the porosity of copper foam, the higher the effective thermal conductivity of the composite. In addition, the Fluent Solidification/Melting model was applied to numerically investigate the melting process of the paraffin in the pore. Lastly, the solid-liquid interface development, completely melted time and temperature field distribution of paraffin in the pore of copper foam were also discussed.

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The effect of pore size and porosity on thermal management performance of phase change material infiltrated microcellular metal foams

Cited by 189 publications

References 27 publications

Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam

Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam

Enthalpy-based multiple-relaxation-time lattice Boltzmann method for solid-liquid phase-change heat transfer in metal foams

Numerical and Experimental Studies on the Heat Transfer Performance of Copper Foam Filled with Paraffin

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