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Analytical Geometrical Model of Open Cell Foams with Detailed Description of Strut‐Node Intersection
Author(s) -
Ambrosetti Matteo,
Bracconi Mauro,
Groppi Gianpiero,
Tronconi Enrico
Publication year - 2017
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201600173
Subject(s) - mass transfer , intersection (aeronautics) , range (aeronautics) , materials science , surface (topology) , mechanics , heat transfer , composite material , geometry , mathematics , physics , engineering , aerospace engineering
Abstract Open cell foams are regarded as potential enhanced catalyst carriers due to their high specific surface areas, low pressure drops, and good heat and mass transfer rates. However, it is difficult to evaluate their surface area. An analytical model is proposed, which is derived entirely from geometrical hypotheses and can be applied using different easily accessible input parameters. It can accurately estimate the specific surface and other features of foams for a wide range of porosities. The application of the new model to the reevaluation of published gas/solid mass transfer data is demonstrated.