[1]靳遵龙,杨友晨,宫本希,等.瓦楞式固体氧化物燃料电池的数值研究[J].郑州大学学报(工学版),2021,42(06):43-49.[doi:10.13705/j.issn.1671-6833.2021.04.018]
　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]

点击复制

瓦楞式固体氧化物燃料电池的数值研究()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

42

期数:

2021年06期

页码:

43-49

栏目:

出版日期:

2021-11-10

文章信息/Info

Title:

Numerical Study of Mono-block-layer-built-type Solid Oxide Fuel Cell

作者:

靳遵龙; 杨友晨; 宫本希; 原磊; 杨鹏辉; 王定标

郑州大学机械与动力工程学院;中国核电工程有限公司郑州分公司;

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

关键词:

瓦楞式固体氧化物燃料电池; 流道夹角; 组分分布; 温度; 电性能

Keywords:

MOLB-type SOFC;  flow channel angle;  species distribution;  temperature;  electrical performance

DOI:

10.13705/j.issn.1671-6833.2021.04.018

文献标志码:

A

摘要:

在控制反应面积、电极和电解液层厚度相同的前提下，建立了105º、120º、135º和150º四种不同流道角的瓦楞式固体氧化物燃料电池的三维数学模型。模拟了不同流道夹角对电池内部组分分布、最大温差和电性能的影响。模拟结果表明，流道夹角的增大对燃料流道上方阳极内部的气体传输和“拐角效应”有积极影响，但对与连接体接触的阳极内部气体扩散有抑制作用。当流道夹角从105°增加到135°时，流道夹角每增加15°，电池最大温差可降低6.18%，而电性能变化不大。流道夹角为150º的瓦楞式SOFC在拐角线处的氢气摩尔分数比105º平均高出1 1.31%。此外，还比较讨论了不同燃料和空气的入口速度对瓦楞式固体氧化物燃料电池温度分布和燃料利用率的影响。燃料入口速度的增加在不同电池长度处对反应面中心线的温度分布产生不同的影响，空气入口速度的增大会降低反应面的温度，两者均会降低燃料利用率。

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°.

常用功能