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Numerical Study of Mono-block-layer-built-type Solid Oxide Fuel Cell
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[1]JIN Zunlong,YANG Youchen,GONG Benxi,et al.Numerical Study of Mono-block-layer-built-type Solid Oxide Fuel Cell[J].Journal of Zhengzhou University (Engineering Science),2021,42(06):43-49.[doi:10.13705/j.issn.1671-6833.2021.04.018]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 42 Number of periods: 2021 06 Page number: 43-49 Column: Public date: 2021-11-10
Title:
Numerical Study of Mono-block-layer-built-type Solid Oxide Fuel Cell
Author(s):
JIN Zunlong1;  YANG Youchen1;  GONG Benxi2;  YUAN Lei1;  YANG Penghui1;  WANG Dingbiao1
1.School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China; 2.China Nuclear Power Enginearing CO., Ltd. Zhengzhou Branch, Zhengzhou 450052, China
Keywords:
MOLB-type SOFC;  flow channel angle;  species distribution;  temperature;  electrical performance
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2021.04.018
Abstract:
Four mono-block-layer-built-type (MOLB-type) SOFCs with different flow channel angles of 105°, 120°, 135° and 150° were modeled on the premise of the same reaction area, the same thickness of electrodes and same electrolyte layer. The effects on flow distribution, maximum temperature difference and electrical performance of these models by the various flow channel angles were simulated. The simulation results showed that the increase of flow channel angle had a positive effect on the gas transfer and corner effect in the anode above fuel flow channel but an inhibitory effect in the anode that was in contact with the interconnect. When the flow channel angle increased from 105° to 135°, the maximum temperature difference could be reduced by 6.18% for per 15° increase with rarely changing the electrical performance. The hydrogen mole fraction of MOLB-type SOFC with the flow channel angle of 150° was 11.3% higher than that of 105° on average at the corner line. Through comprehensive comparison, it was better for the flow channel angle of MOLB-type SOFC to be 135°.
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Last Update: 2021-12-17
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