A mathematical model to analyze solid oxide electrolyzer cells (SOECs) for hydrogen production

Menon, V and Janardhanan, V and Deutschmann, O (2014) A mathematical model to analyze solid oxide electrolyzer cells (SOECs) for hydrogen production. Chemical Engineering Science, 110. pp. 83-93. ISSN 0009-2509

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Abstract

In this analysis, we report an in-house model to describe the complex fundamental and functional interactions between various internal physico-chemical phenomena of a SOEC. Electrochemistry at the three-phase boundary is modeled using a modified Butler-Volmer approach that considers H2 as the electrochemically active species. Also, a multi-step elementary heterogeneous reaction mechanism for the thermo-catalytic H2 electrode chemistry, dusty-gas model to account for multi-component diffusion through porous media, and plug flow model for flow through the channels are used. Results pertaining to detailed chemical processes within the cathode, electrochemical behavior and irreversible losses during SOEC operation are demonstrated. Furthermore, efficiency analysis is performed and limiting current behavior of the SOEC system is investigated

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IITH Creators:

IITH Creators	ORCiD
Janardhanan, V	http://orcid.org/0000-0002-3458-4169

Item Type:

Article

Additional Information:

We deeply value all the fruitful discussions with Prof. R.J. Kee and Dr. H. Zhu (Colorado School of Mines). Financial support by the Helmholtz Research School Energy-Related Catalysis is gratefully acknowledged

Uncontrolled Keywords:

Hydrogen production; Numerical modeling; Reaction kinetics; Solid oxide electrolyzer cell (SOEC)

Subjects:

Chemical Engineering > Biochemical Engineering

Divisions:

Department of Chemical Engineering

Depositing User:

Team Library

Date Deposited:

19 Dec 2014 11:44

Last Modified:

28 Feb 2019 04:52