Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6502
Title: 2D thermal modeling of a solid oxide electrolyzer cell (SOEC) for syngas production by H₂O/ CO₂ co-electrolysis
Authors: Ni, M 
Keywords: Solid oxide fuel cell
Heat transfer
Synthetic fuel
Co-electrolysis
Thermo-electrochemical model
Issue Date: Apr-2012
Publisher: Pergamon Press
Source: International journal of hydrogen energy, Apr. 2012, v. 37, no. 8, p. 6389-6399 How to cite?
Journal: International journal of hydrogen energy 
Abstract: Solid oxide fuel cells (SOFCs) can be operated in a reversed mode as electrolyzer cells for electrolysis of H₂O and CO₂. In this paper, a 2D thermal model is developed to study the heat/mass transfer and chemical/electrochemical reactions in a solid oxide electrolyzer cell (SOEC) for H₂O/ CO₂ co-electrolysis. The model is based on 3 sub-models: a computational fluid dynamics (CFD) model describing the fluid flow and heat/mass transfer; an electrochemical model relating the current density and operating potential; and a chemical model describing the reversible water gas shift reaction (WGSR) and reversible methanation reaction. It is found that reversible methanation and reforming reactions are not favored in H₂O/ CO₂ co-electrolysis. For comparison, the reversible WGSR can significantly influence the co-electrolysis behavior. The effects of inlet temperature and inlet gas composition on H₂O/ CO₂ co-electrolysis are simulated and discussed.
URI: http://hdl.handle.net/10397/6502
ISSN: 0360-3199
EISSN: 1879-3487
DOI: 10.1016/j.ijhydene.2012.01.072
Rights: Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Posted with permission of International Association of Hydrogen Energy.
Appears in Collections:Journal/Magazine Article

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