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- Title
Computational Fluid Dynamics Modeling of the Resistivity and Power Density in Reverse Electrodialysis: A Parametric Study.
- Authors
Jalili, Zohreh; Burheim, Odne Stokke; Einarsrud, Kristian Etienne
- Abstract
Electrodialysis (ED) and reverse electrodialysis (RED) are enabling technologies which can facilitate renewable energy generation, dynamic energy storage, and hydrogen production from low-grade waste heat. This paper presents a computational fluid dynamics (CFD) study for maximizing the net produced power density of RED by coupling the Navier–Stokes and Nernst–Planck equations, using the OpenFOAM software. The relative influences of several parameters, such as flow velocities, membrane topology (i.e., flat or spacer-filled channels with different surface corrugation geometries), and temperature, on the resistivity, electrical potential, and power density are addressed by applying a factorial design and a parametric study. The results demonstrate that temperature is the most influential parameter on the net produced power density, resulting in a 43% increase in the net peak power density compared to the base case, for cylindrical corrugated channels.
- Subjects
POWER density; ELECTRODIALYSIS; NERNST-Planck equation; NAVIER-Stokes equations; WASTE heat
- Publication
Membranes, 2020, Vol 10, Issue 9, p209
- ISSN
2077-0375
- Publication type
Article
- DOI
10.3390/membranes10090209