Simulation of the chemical/electrochemical reactions and heat/mass transfer for a tubular SOFC in a stack

Peiwen Li, Minking K. Chyu

Research output: Contribution to journalArticle

163 Citations (Scopus)

Abstract

The heat and species transport processes in a tubular type solid oxide fuel cell (SOFC) that works in a cell stack were analyzed and modeled. Since most of the single tubular SOFCs working in a cell stack share the same/similar chemical/electrochemical and heat/mass transfer conditions, it is plausible to assume that heat and species are not exchanged between one cell and its neighboring cells. Therefore, a surrounding fuel flow space was outlined controllable by a specific single cell, for which zero flux was assumed at its boundary in neighborhood with other cells. The numerical model subjects such a cell and its controllable fuel flow space to a two-dimensional analysis for the flow, heat/mass transfer and chemical/electrochemical performance. Computations were performed for three different tubular SOFCs having practical operating results available from publications by different researchers. The numerical results of the terminal voltages for those different SOFCs showed very good agreement with the published experimental data. It is expectable that the proposed numerical model be used to significantly help the design and operation of a SOFC stack in practical applications.

Original languageEnglish (US)
Pages (from-to)487-498
Number of pages12
JournalJournal of Power Sources
Volume124
Issue number2
DOIs
StatePublished - Nov 24 2003
Externally publishedYes

Fingerprint

solid oxide fuel cells
Solid oxide fuel cells (SOFC)
mass transfer
Mass transfer
heat
cells
fuel flow
simulation
Numerical models
dimensional analysis
Hot Temperature
heat transmission
Fluxes
Heat transfer
Electric potential
electric potential

Keywords

  • Chemical/electrochemical reactions
  • Heat/mass transfer
  • Simulation
  • Tubular SOFC

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

Simulation of the chemical/electrochemical reactions and heat/mass transfer for a tubular SOFC in a stack. / Li, Peiwen; Chyu, Minking K.

In: Journal of Power Sources, Vol. 124, No. 2, 24.11.2003, p. 487-498.

Research output: Contribution to journalArticle

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N2 - The heat and species transport processes in a tubular type solid oxide fuel cell (SOFC) that works in a cell stack were analyzed and modeled. Since most of the single tubular SOFCs working in a cell stack share the same/similar chemical/electrochemical and heat/mass transfer conditions, it is plausible to assume that heat and species are not exchanged between one cell and its neighboring cells. Therefore, a surrounding fuel flow space was outlined controllable by a specific single cell, for which zero flux was assumed at its boundary in neighborhood with other cells. The numerical model subjects such a cell and its controllable fuel flow space to a two-dimensional analysis for the flow, heat/mass transfer and chemical/electrochemical performance. Computations were performed for three different tubular SOFCs having practical operating results available from publications by different researchers. The numerical results of the terminal voltages for those different SOFCs showed very good agreement with the published experimental data. It is expectable that the proposed numerical model be used to significantly help the design and operation of a SOFC stack in practical applications.

AB - The heat and species transport processes in a tubular type solid oxide fuel cell (SOFC) that works in a cell stack were analyzed and modeled. Since most of the single tubular SOFCs working in a cell stack share the same/similar chemical/electrochemical and heat/mass transfer conditions, it is plausible to assume that heat and species are not exchanged between one cell and its neighboring cells. Therefore, a surrounding fuel flow space was outlined controllable by a specific single cell, for which zero flux was assumed at its boundary in neighborhood with other cells. The numerical model subjects such a cell and its controllable fuel flow space to a two-dimensional analysis for the flow, heat/mass transfer and chemical/electrochemical performance. Computations were performed for three different tubular SOFCs having practical operating results available from publications by different researchers. The numerical results of the terminal voltages for those different SOFCs showed very good agreement with the published experimental data. It is expectable that the proposed numerical model be used to significantly help the design and operation of a SOFC stack in practical applications.

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