Anisotropic 3D Nanofibrous Porous Material Fabrication by a Liquid Film-Assisted Gas Templating Strategy for Thermal Insulation

Well-Defined Hierarchical Templates for Multimodal Porous Material Fabrication

Chemistry of Materials ◽

10.1021/cm101146n ◽

2010 ◽

Vol 22 (14) ◽

pp. 4312-4319 ◽

Cited By ~ 82

Author(s):

Bo Zhao ◽

Maryanne M. Collinson

Keyword(s):

Porous Material ◽

Material Fabrication

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Porous Material Fabrication using Ice Particles as a Pore Forming Agent

Ceramic Transactions Series - Advances in Synthesis, Processing, and Applications of Nanostructures ◽

10.1002/9781118511428.ch13 ◽

2012 ◽

pp. 121-127

Author(s):

Samantha Smith ◽

Gary Pickrell

Keyword(s):

Porous Material ◽

Ice Particles ◽

Material Fabrication

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Natural Convection Reduction in a Composite Air/Porous Annular Region With Horizontal Orientation

Journal of Heat Transfer ◽

10.1115/1.2993544 ◽

2008 ◽

Vol 131 (2) ◽

Cited By ~ 2

Author(s):

M. Ait saada ◽

S. Chikh ◽

A. Campo

Keyword(s):

Heat Transfer ◽

Natural Convection ◽

Porous Material ◽

Thermal Insulation ◽

Control Volume ◽

Outer Cylinder ◽

Convection Heat Transfer ◽

Flow In Porous Media ◽

Temperature Fields ◽

Annular Region

This paper deals with a numerical investigation on natural convection heat transfer in a long horizontal annular region formed with a heated inner cylinder and a cooled outer cylinder. Identifying the annular region geometrically by its radius ratio, it is divided into two subregions: a thicker outer subregion is filled with a porous material saturated by air, whereas a thinner inner subregion is clear. Based on the general Darcy–Brinkman–Forchheimer model for flow in porous media, numerical calculations with the control volume method produce the velocity and temperature fields of the air motion in the two subregions. The baseline case corresponds to an annular region of same dimensions, but filled completely with a porous material saturated by air. Upon articulating the physical properties of a porous material with the clear gap size, the analyst will be able to tune those conditions that are conducive to heat transfer reduction across the concentric two-cylinder configuration. The outcome of this paper is equivalent to the determination of superior thermal insulation performance using lesser porous material. In other words, this paper boils down to beneficial energy conservation together with money savings in the purchase of the thermal insulation.

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