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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Evaluation of performance and operation viability of non-uniform potential solid oxide fuel cell fueled by reformed methane
AU - Piroonlerkgul, Pakorn
AU - Kiatkittipong, Worapon
AU - Wongsakulphasatch, Suwimol
AU - Aiouache, Farid
AU - Assabumrungrat, Suttichai
PY - 2014/1/15
Y1 - 2014/1/15
N2 - The performance and the operation viability of solid oxide fuel cells (SOFC) fueled by reformed methane using the concept of non-uniform potential operation were evaluated by one-dimensional finite difference analysis. Two thermal constraints including maximum acceptable stack temperature gradient and maximum stack temperature were the criteria for considering the operation viability. The average power density was used as a performance indicator. In addition, two major process parameters: fuel and air inlet temperatures and the operating voltage were examined to determine the suitable values for different viabilities. The results revealed that non-uniform potential SOFC with two stack sections operating at different voltages could not offer a significantly higher average power density compared with the uniform potential SOFC owing to thermal constraint limitations. The installation of coolers between the stacks is important and it could offer 12.8% improvement in average power density.
AB - The performance and the operation viability of solid oxide fuel cells (SOFC) fueled by reformed methane using the concept of non-uniform potential operation were evaluated by one-dimensional finite difference analysis. Two thermal constraints including maximum acceptable stack temperature gradient and maximum stack temperature were the criteria for considering the operation viability. The average power density was used as a performance indicator. In addition, two major process parameters: fuel and air inlet temperatures and the operating voltage were examined to determine the suitable values for different viabilities. The results revealed that non-uniform potential SOFC with two stack sections operating at different voltages could not offer a significantly higher average power density compared with the uniform potential SOFC owing to thermal constraint limitations. The installation of coolers between the stacks is important and it could offer 12.8% improvement in average power density.
KW - Solid oxide fuel cell
KW - Non-uniform potential
KW - Methane
KW - Operation viability
KW - Two-stacks
U2 - 10.1016/j.jpowsour.2013.07.120
DO - 10.1016/j.jpowsour.2013.07.120
M3 - Journal article
VL - 246
SP - 719
EP - 728
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -