Heat transfer in the packing of cellular pellets: microstructure and apparent thermal conductivity

Quénard, Daniel; Giraud, Daniel; Menneteau, François-Dominique; Sallée, Hébert

doi:10.1068/htec276

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“…Many previous studies have attempted to determine the heat transfer of solid conduction [2][3][4][5], gaseous conduction [5] and thermal radiation [6][7][8][9][10][11][12][13][14][15][16][17][18] in porous medium. Most of the studies assumed all closed-cell or all open-cell structures in their analyses.…”

Section: Introductionmentioning

confidence: 99%

The effects of PE additive on the performance of polystyrene vacuum insulation panels

Tseng

Chu

2009

International Journal of Heat and Mass Transfer

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Section: Introductionmentioning

confidence: 99%

The effects of PE additive on the performance of polystyrene vacuum insulation panels

Tseng

Chu

2009

International Journal of Heat and Mass Transfer

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An experimental study of the heat transfer in PS foam insulation

Tseng

Chu

2008

Heat Mass Transfer

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Modeling of Heat Transfer in Low-Density EPS Foams

Coquard

Baillis

2005

Journal of Heat Transfer

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Expanded polystyrene (EPS) foams are one of the most widely used thermal insulators in the building industry. Owing to their very low density, both conductive and radiative heat transfers are significant. However, only few studies have already been conducted in the modeling of heat transfer in this kind of medium. This is due to their complex porous structure characterized by a double-scale porosity which has always been ignored by the previous works. In this study, we present a model of one-dimensional steady state heat transfer in these foams based on a numerical resolution of the radiation-conduction coupling. The modeling of the conductive and radiative properties of the foams takes into account their structural characteristics such as foam density or cell diameter and permits us to study the evolution of their equivalent thermal conductivity with these characteristics. The theoretical results have been compared to equivalent thermal conductivity measurements made on several EPS foams using a flux-meter apparatus and show a good agreement.

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Heat transfer in the packing of cellular pellets: microstructure and apparent thermal conductivity

Cited by 3 publications

References 0 publications

The effects of PE additive on the performance of polystyrene vacuum insulation panels

The effects of PE additive on the performance of polystyrene vacuum insulation panels

An experimental study of the heat transfer in PS foam insulation

Modeling of Heat Transfer in Low-Density EPS Foams

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