| 邱 成，鲁聪达 ，文东辉.质子交换膜燃料电池平行流场优化[J].轻工机械,2014,32(3): |
| 质子交换膜燃料电池平行流场优化 |
| Optimization of Straight-Parallel Flow Field for Proton Exchange Membrane Fuel Cells |
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| DOI：IO. 3969/j. issn. 1005 -2895. 2014. 03. 009 |
| 中文关键词: 燃料电池 解析法 平行流场 流动均匀性 |
| 英文关键词:fuel cells analytical method straight-parallel flow field even flow distribution |
| 基金项目:国家自然科学基金资助项目( 51175472)；浙江省杰出青年科学基金(R1111149) |
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| 中文摘要: |
| 质子交换膜燃料电池平行流场因其较小的压降和较多分支流道会使整个流场中的反应气体流动很不均匀，产生
了较差的流动特性，也会使电池的电化学反应不够充分进而严重影响电池的输出功率，所以需要对平行流场的几何结构
进行优化，从而得到较好的流动特性。文章采用一种基于动量和质量守恒的数值解析法对电池流场结构进行数值优化，
并且优化结果用三维计算流体动力学进行模拟并证明优化是有效的，优化后的流场能够最终消除流场的流动不均匀性
并得到流动均匀的流场，使得电池的整体性能得以提高。 |
| 英文摘要: |
| Straight-parallel flow field of proton exchange membrane fuel cells ( PEMFC) causes the poor flow because of
its lowest pressure drop and branch channel between the traditional gas-distributor plane. It gives rise to the problem of
severe flow distribution in the flow field. As a consequence, the mass transfer and electrochemistry reaction for the
PEMFCs flow field in insufficient process significantly influences the output power of fuel cells. and it is necessary to
optimize the geometric construction of parallel flow field to obtain a better flow distribution. So an analytical method
based on mass and momentum conservation was proposed to numerical optimization for the flow field of fuel cells. And
the results released from this solution were validated by computing from the three-dimensional computational fluid
dynamics simulations. CFD. The optimized results can eliminate the misdistribution.and an even flow distribution can be
achieved. And a higher whole performance is improved. |
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