Computation of the Conjugating Heat Transfer of Fuel and Oxidant Separated by a Heat-generating Cell Tube in a Solid Oxide Fuel Cell

Pei Wen Li, Laura Schaefer, Qing Ming Wang, Minking K. Chyu

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

A numerical model is presented in this work to compute the inter-dependent fields of flow, temperature and the concentrations of multiple gases in a single tubular solid oxide fuel cell (SOFC) system. It was supposed that the fuel gas supplied to the fuel cell is from a pre-reformer and thus contains hydrogen and proportions of carbon monoxide, carbon dioxide, steam, and methane. The model takes mixture gas properties of the fuel and oxidant as functions of the numerically obtained local temperature, pressure and species concentrations, which are inter-dependent and intimately related to the electrochemical reaction in the SOFC. In the iterative computation steps, local electrochemical parameters were simultaneously calculated based on the local parameters of pressure, temperature, and concentration of the species available at each step. Upon the convergence of the computation, both local details and the overall performance of the fuel cell could be obtained. The numerical results obtained are helpful for better understanding of the operation of SOFCs.

Original languageEnglish (US)
Pages (from-to)423-430
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume372
Issue number7
DOIs
StatePublished - Dec 1 2002
Externally publishedYes
Event2002 ASME International Mechanical Engineering Congress and Exposition - New Orleans, LA, United States
Duration: Nov 17 2002Nov 22 2002

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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