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| Title: | Modeling and parametric simulations of solid oxide fuel cells with methane carbon dioxide reforming | Authors: | Ni, M | Issue Date: | 2013 | Source: | Energy conversion and management, 2013, v. 70, p. 116-129 | Abstract: | A two-dimensional model is developed to simulate the performance of solid oxide fuel cells (SOFCs) fed with CO2 and CH4 mixture. The electrochemical oxidations of both CO and H2 are included. Important chemical reactions are considered in the model, including methane carbon dioxide reforming (MCDR), reversible water gas shift reaction (WGSR), and methane steam reforming (MSR). It's found that at a CH4/CO 2 molar ratio of 50/50, MCDR and reversible WGSR significantly influence the cell performance while MSR is negligibly small. The performance of SOFC fed with CO2/CH4 mixture is comparable to SOFC running on CH4/H2O mixtures. The electric output of SOFC can be enhanced by operating the cell at a low operating potential or at a high temperature. In addition, the development of anode catalyst with high activity towards CO electrochemical oxidation is important for SOFC performance enhancement. The model can serve as a useful tool for optimization of the SOFC system running on CH4/CO2 mixtures. | Keywords: | Electrochemistry Heat and mass transfer Hydrocarbon fuels Methane carbon dioxide reforming Porous media Solid oxide fuel cell |
Publisher: | Pergamon Press | Journal: | Energy conversion and management | ISSN: | 0196-8904 | EISSN: | 1879-2227 | DOI: | 10.1016/j.enconman.2013.02.008 | Rights: | NOTICE: this is the author’s version of a work that was accepted for publication in Energy Conversion and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Energy Conversion and Management, vol. 70, p. 116-129 (Jun 2013), DOI: 10.1016/j.enconman.2013.02.008 |
| Appears in Collections: | Journal/Magazine Article |
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|---|---|---|---|---|
| SOFC_CO2_CH4_Ni_Clear_Version.pdf | Pre-published version | 1.74 MB | Adobe PDF | View/Open |
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