Spatial temperature feedback control has been developed for a simulated integrated non-pressurized simple cycle solid oxide fuel cell (SOFC) system. The fuel cell spatial temperature feedback controller is based on (1) feed-forward set-points that minimize temperature variation in the fuel cell electrode-electrolyte solid temperature profile for the system operating power range, and (2) decentralized proportional-integral based feedback to maintain the fuel cell spatial temperature profile during transients and disturbances. Simulation results indicate the fuel cell spatial temperature variation can be maintained within 15 degrees of nominal to significant load perturbations. Temperature gradients through the fuel cell are needed to remove the heat generated within the cell and cannot be avoided. The goal of the developed spatial temperature control is to minimize temperature variations from a nominal temperature profile in time. Minimal temperature variations in the SOFC electrode-electrolyte solid assembly will result in decreased thermal stresses and thereby decreased degradation and probability-of-failure. Simulation results demonstrating the ability to maintain the SOFC spatial temperature during large load perturbations indicates SOFC could be designed and controlled for rapid load following capability. Such performance can greatly improve SOFC system operating flexibility and thereby open new markets for SOFC systems including load following or spinning reserve services for the utility grid.
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ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology
June 14–16, 2010
Brooklyn, New York, USA
Conference Sponsors:
- Advanced Energy Systems Division
ISBN:
978-0-7918-4405-2
PROCEEDINGS PAPER
Transient Performance of Integrated SOFC System Including Spatial Temperature Control
Fabian Mueller,
Fabian Mueller
University of California, Irvine, Irvine, CA
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Mahshid Fardadi,
Mahshid Fardadi
University of California, Irvine, Irvine, CA
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Brendan Shaffer,
Brendan Shaffer
University of California, Irvine, Irvine, CA
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Jacob Brouwer,
Jacob Brouwer
University of California, Irvine, Irvine, CA
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Faryar Jabbari
Faryar Jabbari
University of California, Irvine, Irvine, CA
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Fabian Mueller
University of California, Irvine, Irvine, CA
Mahshid Fardadi
University of California, Irvine, Irvine, CA
Brendan Shaffer
University of California, Irvine, Irvine, CA
Jacob Brouwer
University of California, Irvine, Irvine, CA
Faryar Jabbari
University of California, Irvine, Irvine, CA
Paper No:
FuelCell2010-33304, pp. 237-247; 11 pages
Published Online:
December 3, 2010
Citation
Mueller, F, Fardadi, M, Shaffer, B, Brouwer, J, & Jabbari, F. "Transient Performance of Integrated SOFC System Including Spatial Temperature Control." Proceedings of the ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 2. Brooklyn, New York, USA. June 14–16, 2010. pp. 237-247. ASME. https://doi.org/10.1115/FuelCell2010-33304
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