Electrical Performance and Carbon Deposition Differences between the Bi-Layer Interconnector and Conventional Straight Interconnector Solid Oxide Fuel Cell

Min Yan, Pei Fu, Qiuyang Chen, Qiuwang Wang, Min Zeng and Jaideep Pandit
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Min Yan: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
Pei Fu: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
Qiuyang Chen: Nuclear Safety Technology Research Center, Suzhou Nuclear Power Institute, Xihuan Road 1788#, Suzhou 215004, Jiangsu, China
Qiuwang Wang: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
Min Zeng: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
Jaideep Pandit: Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24060, USA

Energies, 2014, vol. 7, issue 7, 1-13

Abstract: Carbon deposition considered in a solid oxide fuel cell (SOFC) model may be influenced by the operating voltage, inlet water/methane ratio, working temperature and pressure, inlet molar fraction of fuel and so on. The effects of these parameters in a planar SOFC implementing a novel bi-layer interconnector are not well understood. This paper is focused on the numerical study of carbon deposition and electrical performance of a bi-layer interconnector planar SOFC. The results illustrate that the electrical performance of the bi-layer interconnector SOFC is 11% higher than that of the conventional straight interconnector SOFC with initial state. After 120 days of operation, the electrical performance of the bi-layer interconnector SOFC has a slight decrease and more carbon deposit because of the increased electrochemical reaction rate. However, these differences minimize if higher operating voltages are involved.

Keywords: planar SOFC; bi-layer interconnector; electrical performance; carbon deposition; conventional SOFC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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