The emergence of fuel cell systems and hybrid fuel cell systems requires the evolution of analysis strategies for evaluating thermodynamic performance and directing design and development. A description and application of the recently developed tool for analyzing tubular SOFC based systems is presented. The capabilities of this tool include an analytical model for the tubular SOFC derived from first principles and the secondary equipment required to analyze hybrid power plants. Examples of such secondary equipment are gas turbine, reformer, partial oxidation reactor, shift reactor, humidifier, steam turbines, compressor, gas expander, heat exchanger, and pump. A “controller” is included which is essential for modeling systems to automatically iterate in order to meet the desired process or system design criteria. Another important capability that is included is to be able to arrange the various components or modules as defined by the user in order to configure different hybrid systems. Analysis of the hybrid cycle as originally proposed by Westinghouse (SureCell TM) indicates that the thermal efficiency of the cycle is quite insensitive to the pressure ratio, increasing from 65.5 percent to 66.6 percent on a lower calorific value of the fuel as the pressure ratio decreases from 15 to 6.5.
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July 2002
Technical Papers
Analysis Strategies for Tubular Solid Oxide Fuel Cell Based Hybrid Systems
A. D. Rao,
A. D. Rao
National Fuel Cell Research Center, University of California, Irvine, CA 92697
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G. S. Samuelsen
G. S. Samuelsen
National Fuel Cell Research Center, University of California, Irvine, CA 92697
Search for other works by this author on:
A. D. Rao
National Fuel Cell Research Center, University of California, Irvine, CA 92697
G. S. Samuelsen
National Fuel Cell Research Center, University of California, Irvine, CA 92697
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Munich, Germany, May 8–11, 2000; Paper 00-GT-553. Manuscript received by IGTI, Nov. 1999; final revision received by ASME Headquarters, Feb. 2000. Associate Editor: D. Wisler.
J. Eng. Gas Turbines Power. Jul 2002, 124(3): 503-509 (7 pages)
Published Online: June 19, 2002
Article history
Received:
November 1, 1999
Revised:
February 1, 2000
Online:
June 19, 2002
Citation
Rao , A. D., and Samuelsen , G. S. (June 19, 2002). "Analysis Strategies for Tubular Solid Oxide Fuel Cell Based Hybrid Systems ." ASME. J. Eng. Gas Turbines Power. July 2002; 124(3): 503–509. https://doi.org/10.1115/1.1413462
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