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Efficiency of poly-generating high temperature fuel cells

  • Author(s): Margalef, P
  • Brown, T
  • Brouwer, J
  • Samuelsen, S
  • et al.
Abstract

High temperature fuel cells can be designed and operated to poly-generate electricity, heat, and useful chemicals (e.g., hydrogen) in a variety of configurations. The highly integrated and synergistic nature of poly-generating high temperature fuel cells, however, precludes a simple definition of efficiency for analysis and comparison of performance to traditional methods. There is a need to develop and define a methodology to calculate each of the co-product efficiencies that is useful for comparative analyses. Methodologies for calculating poly-generation efficiencies are defined and discussed. The methodologies are applied to analysis of a Hydrogen Energy Station (H 2ES) showing that high conversion efficiency can be achieved for poly-generation of electricity and hydrogen. © 2010 Elsevier B.V.

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