NUMERICAL ANALYSIS OF HEAT/MASS TRANSFER AND ELECTROCHEMICAL REACTION IN AN ANODE-SUPPORTED FLAT-TUBE SOLID OXIDE FUEL CELL

Masayuki Suzuki, Naoki Shikazono, Koji Fukagata, Nobuhide Kasagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Three-dimensional heat and mass transfer and electrochemical reaction in an anode-supported flat-tube solid oxide fuel cell (FT-SOFC) are studied. Transport and reaction phenomena mainly change in the streamwise direction. Exceptionally, hydrogen and water vapor have large concentration gradients also in the cross section perpendicular to the flow direction, because of the insufficient mass diffusion in the porous anode. Based on these results, we develop a simplified one-dimensional cell model. The distributions of temperature, current, and overpotential predicted by this model show good agreement with those obtained by the full three-dimensional simulation. We also investigate the effects of pore size, porosity and configuration of the anode on the cell performance. Extensive parametric studies reveal that, for a fixed three-phase boundary (TPB) length, rough material grains are preferable to obtain higher output voltage. In addition, when the cell has a thin anode with narrow ribs, drastic increase in the volumetric power density can be achieved with small voltage drop.

Original languageEnglish
Title of host publicationASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages595-603
Number of pages9
ISBN (Electronic)0791842479, 9780791842478
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006 - Irvine, United States
Duration: 2006 Jun 192006 Jun 21

Publication series

NameASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006

Conference

ConferenceASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006
Country/TerritoryUnited States
CityIrvine
Period06/6/1906/6/21

Keywords

  • Electrochemical reaction
  • Heat and mass transfer
  • Modeling
  • Simulation
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

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