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Effect of the angle between gas flow direction and electrode on single-chamber SOFC stacks

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Abstract

Single-chamber solid oxide fuel cell (SC-SOFC) stacks with different angles between the gas flow direction and the electrode were fabricated and tested in a diluted methane-oxygen mixture. The gas tubes with separated gas vents were used for transmission of the reactant gasses. Experimental results showed that the performance of the two-cell stack at a gas flow angle (θ) of 45° was greatly enhanced compared with that at 0 and 90°. At a furnace temperature of 700 °C and a CH4/O2 ratio of 2, the maximum output power of the anode-first configuration was 154 mW at θ = 45°, which was 51% higher than that obtained at θ = 90°. Additionally, the maximum power of the anode-first stack was higher than that of the cathode-first one at θ = 45°, which was contrary to the results obtained at θ = 90°. The stack with an angled configuration of θ = 45° will generate a more attractive power for portable power applications.

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Funding

This work was supported by the National Natural Science Foundation of China (Nos. 51602213, 11604236 and 61575139) and the Youth Foundation of the Taiyuan University of Technology (No. 2015QN071).

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Authors and Affiliations

  1. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, 030024, China

    Yanting Tian, Xiang Guo & Pingping Wu

  2. Department of Physics, Harbin Institute of Technology, Harbin, 150001, China

    Zhe Lü, Zhihong Wang & Bo Wei

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  1. Yanting Tian
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  2. Zhe Lü
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  3. Zhihong Wang
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  5. Xiang Guo
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Correspondence to Yanting Tian or Zhe Lü.

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Tian, Y., Lü, Z., Wang, Z. et al. Effect of the angle between gas flow direction and electrode on single-chamber SOFC stacks. J Solid State Electrochem 23, 1651–1657 (2019). https://doi.org/10.1007/s10008-019-04266-w

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  • DOI: https://doi.org/10.1007/s10008-019-04266-w

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