Reticulate porous ceramics employed in high-temperature processes are characterized for heat and mass transfer. The exact 3D digital geometry of their complex porous structure is obtained by computer tomography and used in direct pore-level simulations to numerically calculate their effective transport properties. Two-point correlation functions and mathematical morphology operations are applied for the geometrical characterization that includes the determination of porosity, specific surface area, representative elementary volume edge size, and mean pore size. Finite volume techniques are applied for conductive/convective heat transfer and flow characterization, which includes the determination of the thermal conductivity, interfacial heat transfer coefficient, permeability, Dupuit–Forchheimer coefficient, residence time, tortuosity, and diffusion tensor. Collision-based Monte Carlo method is applied for the radiative heat transfer characterization, which includes the determination of the extinction coefficient and scattering phase function.
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Research Papers
Tomography-Based Heat and Mass Transfer Characterization of Reticulate Porous Ceramics for High-Temperature Processing
Sophia Haussener,
Sophia Haussener
Department of Mechanical and Process Engineering,
ETH Zurich
, 8092 Zurich, Switzerland
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Patrick Coray,
Patrick Coray
Solar Technology Laboratory,
Paul Scherrer Institute
, 5232 Villigen, Switzerland
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Wojciech Lipiński,
Wojciech Lipiński
Department of Mechanical Engineering,
University of Minnesota
, Minneapolis, MN 55455
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Peter Wyss,
Peter Wyss
Department of Electronics/Metrology,
EMPA Material Science and Technology
, Überlandstrasse 129, 8600 Dübendorf, Switzerland
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Aldo Steinfeld
Aldo Steinfeld
Department of Mechanical and Process Engineering,
e-mail: aldo.steinfeld@ethz.ch
ETH Zurich
, 8092 Zurich, Switzerland; and Solar Technology Laboratory, Paul Scherrer Institute
, 5232 Villigen, Switzerland
Search for other works by this author on:
Sophia Haussener
Department of Mechanical and Process Engineering,
ETH Zurich
, 8092 Zurich, Switzerland
Patrick Coray
Solar Technology Laboratory,
Paul Scherrer Institute
, 5232 Villigen, Switzerland
Wojciech Lipiński
Department of Mechanical Engineering,
University of Minnesota
, Minneapolis, MN 55455
Peter Wyss
Department of Electronics/Metrology,
EMPA Material Science and Technology
, Überlandstrasse 129, 8600 Dübendorf, Switzerland
Aldo Steinfeld
Department of Mechanical and Process Engineering,
ETH Zurich
, 8092 Zurich, Switzerland; and Solar Technology Laboratory, Paul Scherrer Institute
, 5232 Villigen, Switzerlande-mail: aldo.steinfeld@ethz.ch
J. Heat Transfer. Feb 2010, 132(2): 023305 (9 pages)
Published Online: December 3, 2009
Article history
Received:
October 31, 2008
Revised:
April 29, 2009
Online:
December 3, 2009
Published:
December 3, 2009
Citation
Haussener, S., Coray, P., Lipiński, W., Wyss, P., and Steinfeld, A. (December 3, 2009). "Tomography-Based Heat and Mass Transfer Characterization of Reticulate Porous Ceramics for High-Temperature Processing." ASME. J. Heat Transfer. February 2010; 132(2): 023305. https://doi.org/10.1115/1.4000226
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