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- Title
螺旋流场设计对PEM 电解槽性能影响的模拟研究.
- Authors
穆 瑞; 马晓锋; 翁武斌; 何 勇; 王智化
- Abstract
In order to improve the performance of proton exchange membrane (PEM) electrolysis cell, a PEM anode spiral flow field based on avoiding corner design considerations was designed and simulated by Comsol Multiphysics software under certain assumptions. The effects of different configurations of flow fields (parallel flow field and serpentine flow field) on the electrolysis voltage, average temperature of membrane electrode, and average oxygen mass fraction of porous transport layer (PTL) when achieving stable operation were compared. The sizes of the new flow field were also optimized. The results indicated that the new spiral flow field has the best performance. Compared with the parallel flow field, the electrolysis voltage of the electrolytic cell decreased by about 0.05 V, the average temperature of the membrane electrode assembly decreased by about 5.6 K, and the average oxygen mass fraction in the PTL decreased by about 13.9%, with a decrease of up to 60%. At the same time, the influence of the width and height of the flow channel in the spiral flow field on the effects of PEM electrolysis cell was explored. The new spiral flow field reduces the contents of oxygen bubbles blocking the gaps in the diffusion layer and electrolytic voltage, and improves the stability of the electrolytic cell operation.
- Subjects
ELECTROLYTIC cells; CHANNEL flow; INDUCTIVE effect; ELECTROLYSIS; MICROBIAL fuel cells; SERPENTINE
- Publication
Advances in New & Renewable Energy, 2023, Vol 11, Issue 4, p295
- ISSN
2095-560X
- Publication type
Article
- DOI
10.3969/j.issn.2095-560X.2023.04.001