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科技导报
|研究论文
2009
, 27
(0920) :
97
-101
阳极流场结构对直接甲醇燃料电池性能影响研究
全屏
李苗苗1，刘 冲1，2，梁军生1，孙焕丽1，王 蕾1
作者信息
1. 大连理工大学机械工程学院；微纳米技术及系统辽宁省重点实验室，辽宁大连 1160232. 大连理工大学机械工程学院；精密与特种加工技术教育部重点实验室，辽宁大连 116023
通讯作者:
李苗苗
Influence of Anode Flow Field on the Performance of Micro Direct Methanol Fuel Cell
Affiliations
出版时间: 2009-10-28
文章导航
直接甲醇燃料电池（DMFC）以其能量密度高、环境友好、结构简单和储存携带方便等优点在便携式产品领域得到广泛关注。流场结构设计是否合理是影响燃料电池输出性能的关键因素之一。本文采用非均衡流场的设计思路，对比了非均衡蛇形流场和均衡蛇形流场的DMFC输出性能。实验结果表明，非均衡蛇形流场结构能够提高DMFC的输出性能，当DMFC水平放置时，非均衡蛇形流场的DMFC峰值功率比均衡蛇形流场的DMFC提高33%左右；均衡蛇形流场的DMFC竖直方式放置时，其输出性能比水平放置时有明显提高，而非均衡蛇形流场的DMFC竖直方式放置时，其输出性能与水平放置时相差不多。
Recently, the direct methanol fuel cell (DMFC) has been drawing an increasing attention of researchers to the power applications of advanced portable electronics, because of its advantages such as high theoretical power density, good efficiency, relatively simple system features and convenience in use. The design of its flow field is one of key factors for DMFC performance. In this paper, a non-equipotent flow field, with the channel width being gradually changed along the channel length, is designed. Transparent DMFCs with different flow fields are designed and fabricated. The performance of DMFC with a non-equipotent serpentine flow field is compared to that with the equipotent serpentine flow field. And the performance of DMFCs placed in the horizontal and vertical directions is compared. Results show that the power difference between the DMFC with the non-equipotent serpentine flow field and that with the equipotent serpentine flow field is enlarged with the increase of the fuel cell current. The absolute peak power of the DMFC with the non-equipotent serpentine flow field, placed in the horizontal direction, is about 33% higher than that with the equipotent serpentine flow field. It is also found that the performance of the DMFC with the equipotent serpentine flow field is improved significantly while being placed in the horizontal direction as compared to that in the vertical direction. But the performances of the DMFC with the non-equipotent serpentine flow field are almost the same when it is placed in either directions.
direct methanol fuel cell
/
flow field design
/
performance
李苗苗;刘 冲;梁军生;孙焕丽;王 蕾.
阳极流场结构对直接甲醇燃料电池性能影响研究.
科技导报,
2009
, 27
(0920)
: 97
-101
.
.
Influence of Anode Flow Field on the Performance of Micro Direct Methanol Fuel Cell[J].
Science & Technology Review ,
2009
, 27
(0920)
: 97
-101
.
2009年第27卷第0920期
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文章信息
接收时间：2009-09-10
首发时间：2009-10-28
出版时间：2009-10-28
收稿日期：2009-09-10
修回日期：2009-10-12
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242117626902679804
引用本文
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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