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: Chapter in Book/Report/Conference proceedingConference contribution

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)
Title of host publicationHeat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages423-430
Number of pages8
ISBN (Print)079183638X, 9780791836385
DOIs
StatePublished - Jan 1 2002
Externally publishedYes

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume7

ASJC Scopus subject areas

  • Mechanical Engineering

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    Li, P. W., Schaefer, L., Wang, Q. M., & Chyu, M. K. (2002). Computation of the conjugating heat transfer of fuel and oxidant separated by a heat-generating cell tube in a solid oxide fuel cell. In Heat Transfer (pp. 423-430). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 7). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-32564