doi: 10.3850/978-981-08-7614-2_IMPRES059


Experimental Analysis of Micro-Tubular SOFC Performance Degradation


Francesco Calise1, Giulio Restuccia1, Nigel Sammes2,a and Kevin Galloway2

1DETEC- University of Naples Federico II, P.le Tecchio 80, 80125, Naples, Italy

2Department of Metallurgical and Materials Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401, USA.

ansammes@mines.edu

ABSTRACT

This paper analyzes the electrochemical dynamic performance of an anode supported micro-tubular Solid Oxide Fuel Cell (SOFC) fed by different types of fuel. The micro-tubular SOFC used is consists of a NiO and Gd0.2Ce0.8O2-x (GDC) cermet anode, thin GDC electrolyte, and a La0.6Sr0.4Co0.2Fe0.8O3-y (LSCF) and GDC cermet cathode. The fabrication of the cells under investigation is briefly summarized, with emphasis on the innovations with respect to traditional techniques. Such micro-tubular cells were tested using a test stand running on H2, CO, CH4 and H2O in different combinations, to determine the cell polarization curves under several load cycles. Long term experimental tests were also performed in order to assess degradation of the electrochemical performance of the cell.

Keywords: SOFC, Modeling, Tubular, Extrusion, Anode, Hydrocarbon fuels.


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