A Methodology for Assessing Fuel Cell Performance Under a Wide Range of Operational Conditions: Results for Single Cells

[+] Author and Article Information
Andrea Baratella, Piero Lunghi

Industrial Engineering Department, University of Perugia, Italy

Roberto Bove

European Commission, Joint Research Centre, Institute for Energy, Petten, The Netherlands

J. Fuel Cell Sci. Technol 3(3), 226-233 (Mar 03, 2006) (8 pages) doi:10.1115/1.2194558 History: Received February 17, 2006; Revised March 03, 2006

Testing the performance of fuel cells is an important key for verifying technology improvements and for demonstrating their potential. However, due to the novelty of this technology, there is not a standardized procedure for testing fuel cell performance. In order to fully investigate fuel cell performance, the behavior must be known under a wide range of operational conditions. Furthermore, in order to compare results coming from different test teams, a set of procedures and parameters to evaluate single cell performance should be defined. The research group of the Fuel Cell Laboratory of the University of Perugia is conducting performance tests on single cells, focusing on defining test procedures to find effective parameters to be used to compare tests performed by different teams. This work demonstrates how the testing parameters developed by the team allow one to perform advanced control on test procedures, to understand test results, and to compare them with tests carried out under different operational conditions. The entire analysis is easily conducted by using a single parameter variation hyperspace approach. The experimental results obtained on single fuel cells are reported.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 1

Voltage varying fuel utilization and current density of a MCFC running on re-formed natural gas (RNG)

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Figure 2

Voltage comparison of ISO-J curves

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Figure 3

Voltage comparison of ISO-Uf curves

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Figure 4

Power density of ISO-Uf curves

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Figure 5

Voltage at constant Uf=0.28, and J=320mA∕cm2 varying Uox: ISO-Uf-J curve

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Figure 6

Voltage at constant Uf=0.5 and J=300mA∕cm2 varying Uox: ISO-Uf-J curve

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Figure 7

Voltage comparison at constant inlet flow rate

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Figure 8

Power density comparison at constant inlet flow rate. ADG: anaerobic digester gas; EBG: entrained bed gasifier; DBG: dual bed Gasifier; NG: reformed natural gas.

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Figure 9

Performance comparison at constant fuel utilization

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Figure 10

Power density at constant fuel utilization

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Figure 11

Voltage comparison at constant current density




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