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Influences of Diversion and Suppression Surfaces of Blocking Block on Output Performance of PEMFC
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Qiang LIU, Tiancai CHENG, Guangjun JIANG, Qi ZHAO, Dongming MU, Pengkai WANG
Journal of Power Supply | 2026, 24(2) : 127 - 135
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Journal of Power Supply | 2026, 24(2): 127-135
• Renewable Energy Generation and Energy Storage •
Influences of Diversion and Suppression Surfaces of Blocking Block on Output Performance of PEMFC
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Qiang LIU, Tiancai CHENG, Guangjun JIANG, Qi ZHAO, Dongming MU, Pengkai WANG
Affiliations
  • School of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Published: 2026-02-28 doi: 10.13234/j.issn.2095-2805.2026.2.127
Outline
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Aimed at the problem that the performance of a proton-exchange membrane fuel cell (PEMFC) is affected by fuel delivery and water management, based on a single-channel PEMFC, a three-dimensional numerical analysis method is used to compare and study the effects of three types of blocking blocks on the performance of PEMFC due to the diversion or suppression effect on the windward and leeward surfaces. Results show that the output performance of the channel with added blocking blocks is improved compared with those of traditional channels, with a fan shaped section block having the best effect. For a flow channel with the fan shaped section block, when the output voltage is 0.5 V, the current density increases by 6.52% compared with the traditional flow channels. Moreover, when the blocking block acts as a guide on the windward side and suppresses the gas flow on the leeward side, it can maximize the output performance of PEMFC. When both the windward and leeward sides of the blocking block serve as a guide, the performance improvement is the least significant. This research provides a novel standard for the selection of blocking blocks and has certain guiding significance for improving the net power density of PEMFC.

Proton-exchange membrane fuel cell (PEMFC)  /  water management  /  optimal design  /  numerical simulation
刘强, 程天才, 姜广君, 赵亓, 穆东明, 王鹏凯. 阻块导流面与抑制面对PEMFC输出性能的影响. 电源学报, 2026 , 24 (2) : 127 -135 . DOI: 10.13234/j.issn.2095-2805.2026.2.127
Qiang LIU, Tiancai CHENG, Guangjun JIANG, Qi ZHAO, Dongming MU, Pengkai WANG. Influences of Diversion and Suppression Surfaces of Blocking Block on Output Performance of PEMFC[J]. Journal of Power Supply, 2026 , 24 (2) : 127 -135 . DOI: 10.13234/j.issn.2095-2805.2026.2.127
Funding
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  • Scientific Research Project of Colleges and Universities in Inner Mongolia Autonomous Region(NJZZ23075)
  • Basic Scientific Research Business Fee Project of Universities Directly under the Autonomous Region(JY20220267)
Appendix
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Year 2026 volume 24 Issue 2
22
2
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.2.127
  • Receive Date：2023-06-29
  • Online Date：2026-10-29
  • Published：2026-02-28
Article Data
Affiliations
History
  • Received：2023-06-29
  • Revised：2023-10-10
  • Accepted：2023-11-04
Funding
Scientific Research Project of Colleges and Universities in Inner Mongolia Autonomous Region(NJZZ23075)
Basic Scientific Research Business Fee Project of Universities Directly under the Autonomous Region(JY20220267)
Affiliations
    School of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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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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