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A Dynamic Bulk SOFC Model Used in a Hybrid Turbine Controls Test Facility

[+] Author Affiliations
Eric A. Liese, Randall S. Gemmen

National Energy Technology Laboratory, Morgantown, WV

Thomas P. Smith, Comas L. Haynes

Georgia Institute of Technology, Atlanta, GA

Paper No. GT2006-90383, pp. 117-126; 10 pages
doi:10.1115/GT2006-90383
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4239-8
  • Copyright © 2006 by ASME

abstract

The paper will describe the dynamic model of a pressurized Solid Oxide Fuel Cell (SOFC). The model is required to run on a digital controller in real-time so that its predicted thermal output may be used to control the fuel valve of an experimental hybrid system that is being used to investigate control methods for fuel cell / gas turbine hybrid systems. The model presented is a bulk model in order to best guarantee real-time operation. The equations and parameters used in the model are presented. The effects of pressure are partially considered and a V-I and P-I curve are plotted in order to show the general fuel cell model behavior. Also presented are dynamic comparisons to a 1-D model. The integration of the model with the experimental system is shown as well.

Copyright © 2006 by ASME

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