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Energies 2015, 8(11), 13231-13254; doi:10.3390/en81112364

Integrated Planar Solid Oxide Fuel Cell: Steady-State Model of a Bundle and Validation through Single Tube Experimental Data

1
Thermochemical Power Group (TPG)-Department of Civil, Chemical and Environmental Engineering (DICCA), Polytechnic School, University of Genoa, Via Opera Pia 15, Genoa 16145, Italy
2
Rolls-Royce Fuel Cell Systems Limited, SinA-7, PO Box 31, Derby DE24 8BJ, UK
3
Thermochemical Power Group (TPG)–Department of Mechanics, Energetics, Management and Transportation (DIME), Polytechnic School, University of Genoa, Via Montallegro 1, Genoa 16145, Italy
Present address: Carestream Health Italia S.r.l., Palazzina S. Lorenzo, Via al Porto Antico, Genova 16128, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Vladimir Gurau
Received: 3 July 2015 / Revised: 2 November 2015 / Accepted: 6 November 2015 / Published: 20 November 2015
(This article belongs to the Special Issue Reacting Transport Phenomena in Electrochemical Cells)
View Full-Text   |   Download PDF [4050 KB, uploaded 23 November 2015]   |  

Abstract

This work focuses on a steady-state model developed for an integrated planar solid oxide fuel cell (IP-SOFC) bundle. In this geometry, several single IP-SOFCs are deposited on a tube and electrically connected in series through interconnections. Then, several tubes are coupled to one another to form a full-sized bundle. A previously-developed and validated electrochemical model is the basis for the development of the tube model, taking into account in detail the presence of active cells, interconnections and dead areas. Mass and energy balance equations are written for the IP-SOFC tube, in the classical form adopted for chemical reactors. Based on the single tube model, a bundle model is developed. Model validation is presented based on single tube current-voltage (I-V) experimental data obtained in a wide range of experimental conditions, i.e., at different temperatures and for different H2/CO/CO2/CH4/H2O/N2 mixtures as the fuel feedstock. The error of the simulation results versus I-V experimental data is less than 1% in most cases, and it grows to a value of 8% only in one case, which is discussed in detail. Finally, we report model predictions of the current density distribution and temperature distribution in a bundle, the latter being a key aspect in view of the mechanical integrity of the IP-SOFC structure. View Full-Text
Keywords: integrated planar solid oxide fuel cell (IP-SOFC); electrochemical reaction; heat and mass transport; modelling; model validation integrated planar solid oxide fuel cell (IP-SOFC); electrochemical reaction; heat and mass transport; modelling; model validation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Costamagna, P.; Grosso, S.; Travis, R.; Magistri, L. Integrated Planar Solid Oxide Fuel Cell: Steady-State Model of a Bundle and Validation through Single Tube Experimental Data. Energies 2015, 8, 13231-13254.

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