Publication: Effective transport properties
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Identifiers
ISSN: 2195-1284
ISSN: 2195-1292 (online)
ISBN: 978-3-030-92177-4
ISBN: 978-3-030-92178-1 (online)
UXXI: CO/0000011551
Publication date
2022-05-07
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Publisher
Springer Nature Switzerland AG.
Abstract
Porous media are an integral part of electrochemical energy conversion and storage devices, including fuel cells, electrolyzers, redox flow batteries and lithium-ion batteries, among others. The calculation of effective transport properties is required for designing more efficient components and for closing the formulation of macroscopic continuum models at the cell/stack level. In this chapter, OpenFOAM is used to determine the effective transport properties of virtually-generated fibrous gas diffusion layers. The analysis focuses on effective properties that rely on the fluid phase, diffusivity and permeability, which are determined by solving Laplace and Navier-Stokes equations at the pore scale, respectively. The model implementation (geometry generation, meshing, solver settings and postprocessing) is described, accompanied by a discussion of the main results. The dependence of orthotropic effective transport properties on porosity is examined and compared with traditional correlations.
Description
Keywords
Electrochemical energy conversion, Storage, Transport properties, OpenFOAM
Bibliographic citation
Garcia Salaberri, Pablo Angel (2022). Effective transport properties. Electrochemical cell calculations with OpenFOAM. Lecture notes in energy, vol. 42. Cham: Springer Nature Switzerland AG Pp. 151-168