A new prediction model for the effective thermal conductivity of high porosity open-cell metal foams

Yao, Yuanpeng; Wu, Huiying; Liu, Zhenyu

doi:10.1016/j.ijthermalsci.2015.06.008

Cited by 83 publications

(41 citation statements)

References 36 publications

(79 reference statements)

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“…(26)) through taking into account the concavity and orientation of the tri-prism ligaments and for four pyramids nodes. In addition to including no empirical parameters, this model has outperformed, in terms of accuracy, what were reported earlier in the literature [62].…”

Section: Effective Thermal Conductivity Models For High-porosity Metamentioning

confidence: 50%

“…However, this model is limited to highly conducting foams, where heat conduction is assumed to occur only along the tortuous ligaments ignoring the heat conduction through the fluid phase. More recently, the 3D tetrakaidecahedron unit cell was considered by Yao et al [62] to establish a more realistic formulation for effective thermal conductivity (Eq. (26)) through taking into account the concavity and orientation of the tri-prism ligaments and for four pyramids nodes.…”

Section: Effective Thermal Conductivity Models For High-porosity Metamentioning

confidence: 99%

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High-Porosity Metal Foams: Potentials, Applications, and Formulations

Alhusseny

Nasser

Al-zurfi

2018

Porosity - Process, Technologies and Applications

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This chapter is aimed as a concise review, but well-focused on the potentials of what is known as "High-porosity metal foams," and hence, the practical applications where such promising media have been/can be employed successfully, particularly in the field of managing, recovering, dissipating, or enhancing heat transfer. Furthermore, an extensive comparison is conducted between the formulations presented so far for the geometrical and thermal characteristics concerning the heat and fluid flow in opencell metal foams.

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Section: Effective Thermal Conductivity Models For High-porosity Metamentioning

confidence: 50%

Section: Effective Thermal Conductivity Models For High-porosity Metamentioning

confidence: 99%

High-Porosity Metal Foams: Potentials, Applications, and Formulations

Alhusseny

Nasser

Al-zurfi

2018

Porosity - Process, Technologies and Applications

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“…There are mainly three methods to simplify the metal foam. Those are the prism model [22,23], the face-centered cubic (FCC) model [24], and the body-centered cubic (BCC) model [25,26]. The prism model, shown in Figure 2a, is the simplest model and has good versatility.…”

Section: Rebuilding the Structure Of A Metal Foammentioning

confidence: 99%

An Efficient Numerical Method for Pressure Loss Investigation in an Oil/Air Separator with Metal Foam in an Aero-Engine

Zhang

Liu

2020

Energies

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An efficient method of simulating pressure loss in a separator with metal foam is reported. In this method, a metal foam is modeled as a porous media having homogenized permeability and inertial resistance coefficients. The permeability and inertial resistance coefficients were obtained by a numerical method that was validated by experimental data from a literature. Then the pressure drop in the separator with metal foam replaced by porous media was efficiently simulated under different working conditions, and the results were analyzed. It was found that the porous media had a great effect on the pressure drop in the separator. As pores per inch (PPI) and rotating speed increase and porosity decreases, the pressure drop of the separator increases. The results indicate that replacing metal foam by porous media is effective and simulating the pressure drop is feasible and effective in a separator with metal foam.

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“…The following three principles are important in the use of interconnected pore metals in heat exchangers: i) high conductivity struts (cell borders) that are highly conductive, preferably metals such as copper or aluminum, ii) a turbulent flow to facilitate local transference of the solid surface heat to the fluid [17] and, iii) low pressure between the input and output, forcing the fluid out of the medium with a moderate strength pumping system [18]- [21]. There is a growing demand for compact, strong and lightweight systems for heat transfer removal devices that are focused on open porosity metal foams as the ideal candidates [22]- [24]. In thermal transference, there are other interesting applications, such as heat sinks for electronic systems, radiators with high efficiency receptors of solar energy and multilayer heat exchangers [25]- [28].…”

Section: Introductionmentioning

confidence: 99%

Thermal and permeability properties of metal aluminum foams for functional applications

Fernández‐Morales

Cano-Montoya

Pérez-Mesa

et al. 2016

I&U:EfD

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This article is derived from a research project called "Ecofibras for use in acoustic applications", funded by CIDI-UPB, code 310B-10 / 14-18.. 2 Artículo de investigación científica y tecnológica. Fecha de recepción: 30 de junio de 2016. Fecha de aceptación: 21 de noviembre de 2016. Este artículo se deriva de un proyecto de investigación denominado Ecofibras para uso en aplicaciones acústicas, financiado por el CIDI-UPB, Radicado 310B-10/14-18. Desarrollado por el grupo de investigación GINUMA de la

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A new prediction model for the effective thermal conductivity of high porosity open-cell metal foams

Cited by 83 publications

References 36 publications

High-Porosity Metal Foams: Potentials, Applications, and Formulations

High-Porosity Metal Foams: Potentials, Applications, and Formulations

An Efficient Numerical Method for Pressure Loss Investigation in an Oil/Air Separator with Metal Foam in an Aero-Engine

Thermal and permeability properties of metal aluminum foams for functional applications

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