Heat Transfer in Porous Media: A Mini Review

Badruddin, Irfan Anjum; Azeem,; Baig, Maughal Ahmed Ali

doi:10.1016/j.matpr.2020.04.447

Cited by 25 publications

(5 citation statements)

References 23 publications

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“…Metallic porous media are of interest in a wide range of engineering fields, as chemical [1], biomedical [2], and heat transfer [3,4]. Many fabrication techniques are used for this type of media, including solgel, polymer porosifier method, foaming method, and additive manufacturing (AM) [5].…”

Section: Introductionmentioning

confidence: 99%

Permeability measurement of a 3D-printed AlSi10Mg porous medium: comparisons between first results with different experimental and numerical techniques

Vitali,

Brambati,

Caruana

et al. 2024

J. Phys.: Conf. Ser.

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In this work, the permeability of a 3D-printed, AlSi10Mg porous medium, with porosity ε = 0.3 and an effective pore radius of 48 μm, developed to operate as wick in a sinter-like heat pipe, has been investigated by means of two different experimental approaches, and of two different numerical methods. The two experimental methods are the capillary rise tests, from which permeability was estimated by fitting the theoretical capillary rise curve to the experimental data, and the direct measurement of the the mass flow rate across the porous sample at an imposed pressure difference. The numerical simulations were performed too using two different approaches and software tools, namely, Lattice-Boltzmann with Palabos, and Finite-Volumes with OpenFOAM. In both cases, the simulation domain was reconstructed from a micro-computer aided tomographic scan of a porous medium sample. Preliminary simulations were run on a simple configuration, both to check simulation setup and validate results, and mesh independence was assessed. Then, pressure-driven and velocity-driven simulations of an incompressible fluid flow across the domain were performed, from which the permeability was estimated using Darcy and Darcy-Forchheimer equations. The results show that the methods, while not in complete agreement, provide a useful estimate. The numerical methods also complement the information given by the experimental techniques by highlighting the flow paths, and allow to analyze scenarios of increased and decreased porosity.

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Section: Introductionmentioning

confidence: 99%

Permeability measurement of a 3D-printed AlSi10Mg porous medium: comparisons between first results with different experimental and numerical techniques

Vitali,

Brambati,

Caruana

et al. 2024

J. Phys.: Conf. Ser.

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“…Porous materials are mostly solid materials that contain pores and voids on the surface and in the interior . Until now, a wide variety of porous materials with various pore sizes, porosities, and pore morphologies have been discovered and fabricated . Based on their unique properties, such as porous and framework structures, high specific surface areas, and low densities, porous materials have been widely used as adsorption and separation materials in many fields, such as membrane separation, molecule storage materials, catalytic substrate materials, sensors, and scaffolds. − In particular, the treatment of water pollution is an extremely urgent issue worldwide.…”

Section: Introductionmentioning

confidence: 99%

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Yin,

Wei,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Traditional poly(ether sulfone) (PES) membranes and spheres exhibit asymmetrical and non-interconnected porous structures, which results in relatively low mass transfer efficiency and thus limits their applications in separation and adsorption to some extent. In this work, PES-based monolithic materials are fabricated by a simple method termed freezing-induced phase separation (FIPS). The as-prepared monoliths show a uniform and interconnected porous structure, high porosity (73.11−83.32%), and good mechanical properties (Young's modulus higher than 3.70 MPa). A hydrophilic copolymer (poly(2-aminoethyl methacrylate)�PAMA) of acrylic acid (AA) and methyl methacrylate (MMA) is introduced into the monolith, which improved the hydrophilicity and endowed the modified PES-based monolith with a negatively charged surface. The pseudo-ternary PES/PAMA, EtOH, and N,N-dimethylformamide (DMF) systems are studied. The monoliths show a denser and more uniform porous structure when a relatively high PES concentration and PAMA amount are used. The adsorption capacity of monoliths for methylene blue (MB) increases with increasing PAMA content, from 10.26 to 64.38 mg/g. Meanwhile, the adsorption capacity can be further improved by hot water post-treatment, from 64.38 to 108.33 mg/g. Batch adsorption tests indicate that the adsorption behavior of the MB monoliths fit the pseudo-second-order kinetic and Langmuir isotherm models. The dynamic adsorption results indicate that the monoliths could remove MB rapidly and effectively. In addition, the modified PES-based monolith selectively adsorb the cationic dyes in a mixed dye solution and has good recyclability.

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“…The study made by Khaled and Vafai (2003) showed the importance of porous media in modeling flow and heat transfer. Many authors have contributed to the study of porous media [Rees and Pop (2000); Badruddin et al (2020); Pai et al (2021)].…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Analysis of MHD Casson Fluid Flow Between Two Porous Plates With Different Permeability

Pai¹,

Kumar²,

Devaki³

2023

Front. Heat Mass Transf.

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In the present study, we consider Casson fluid flow between two porous plates with permeability criteria in the presence of heat transfer and magnetic effect. A proper set of similarity transformations simplify the Navier-Stokes equations to non-linear ODEs with boundary conditions. The homotopy perturbation method is an efficient and stable method which is used to get solutions. Further, the results obtained are compared with the solution computed through an effective and efficient finite difference approach. The purpose of this analysis is to study the four different cases arise viz: suction, injection, mixed suction and mixed injection in this problem, along with magnetic effect and heat transfer characteristics. The results obtained are used to analyse the fluid velocity and temperature profiles, and the skin friction at the upper and lower plate by using both methods are displayed in the form of figures and tables. The semi-analytical solution obtained is in good agreement with the numerical solution.

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Heat Transfer in Porous Media: A Mini Review

Cited by 25 publications

References 23 publications

Permeability measurement of a 3D-printed AlSi10Mg porous medium: comparisons between first results with different experimental and numerical techniques

Permeability measurement of a 3D-printed AlSi10Mg porous medium: comparisons between first results with different experimental and numerical techniques

Poly(acrylic acid-co-methyl methacrylate)-Modified Poly(ether sulfone) Porous Monolith Fabricated Using a Freezing-Induced Phase Separation Method

Heat Transfer Analysis of MHD Casson Fluid Flow Between Two Porous Plates With Different Permeability

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