Academic Journals Database
Disseminating quality controlled scientific knowledge

Effective Heat and Mass Transport Properties of Anisotropic Porous Ceria for Solar Thermochemical Fuel Generation

ADD TO MY LIST
 
Author(s): Sophia Haussener | Aldo Steinfeld

Journal: Materials
ISSN 1996-1944

Volume: 5;
Issue: 1;
Start page: 192;
Date: 2012;
Original page

Keywords: porous media | morphology | transport | radiation | conduction | convection | fluid flow | anisotropy | solar | ceria

ABSTRACT
High-resolution X-ray computed tomography is employed to obtain the exact 3D geometrical configuration of porous anisotropic ceria applied in solar-driven thermochemical cycles for splitting H2O and CO2. The tomography data are, in turn, used in direct pore-level numerical simulations for determining the morphological and effective heat/mass transport properties of porous ceria, namely: porosity, specific surface area, pore size distribution, extinction coefficient, thermal conductivity, convective heat transfer coefficient, permeability, Dupuit-Forchheimer coefficient, and tortuosity and residence time distributions. Tailored foam designs for enhanced transport properties are examined by means of adjusting morphologies of artificial ceria samples composed of bimodal distributed overlapping transparent spheres in an opaque medium.
Save time & money - Smart Internet Solutions     

Tango Jona
Tangokurs Rapperswil-Jona