アノードガス再循環によるPEFC無加湿運転時の発電性能に及ぼすガス拡散層の影響(熱工学,内燃機関,動力など)

• 北原 辰巳

  九州大学大学院工学研究院

• 許斐 敏明

  九州大学大学院工学研究院

• 中島 裕典

  九州大学大学院工学研究院

• 瀬口 雄士

  九州大学大学院工学府

書誌事項

タイトル別名

• Influence of Gas Diffusion Layers on PEFC Performance under No-Humidification Using Anode Gas Recirculation(Thermal Engineering)
• アノードガス再循環によるPEFC無加湿運転時の発電性能に及ぼすガス拡散層の影響
• アノードガス サイジュンカン ニ ヨル PEFC ムカシツウンテンジ ノ ハツデン セイノウ ニ オヨボス ガス カクサンソウ ノ エイキョウ

抄録

Polymer electrolyte fuel cells (PEFCs) generally have external humidifiers to supply humidified hydrogen and oxidant gases. If a PEFC could be operated under no-humidification, humidifiers may be removed, resulting in a simplified PEFC system with increased total efficiency and reduced cost. The present study was carried out to clarify the influence of gas diffusion layers (GDLs) on PEFC performance under no-humidification using anode gas recirculation. For the anode GDL, it is important to increase water transport between the anode gas and the membrane electrode assembly (MEA). The anode GDL without a microporous layer (MPL) is effective for enhancing PEFC performance. For the cathode GDL, it is important to maintain humidity and prevent drying-up of the MEA. A double hydrophobic MPL coated on both sides of the GDL is effective for reducing gas permeability, thereby preventing removing the water in the MEA through the GDL via dry air at the cathode. The hydrophilic layer coated on the double MPL enhances the ability of the GDL to prevent drying-up. Appropriate hydrophilic layer thickness of 40μm is effective for enhancing PEFC performance. Reducing the pore diameter of the hydrophobic intermediate layer between the hydrophilic layer and the substrate is also effective for enhancing PEFC performance.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 76 (771), 1956-1963, 2010

  一般社団法人 日本機械学会

キーワード

• Polymer Electrolyte Fuel Cell
• No-Humidification
• Water Management
• Drying-Up
• Gas Diffusion Layer
• Microporous Layer
• Hydrophobicity
• Hydrophilicity

詳細情報

• CRID: 1390001206294345088
• NII論文ID: 110007989270
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.76.771_1956
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 10916668
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10916668
• Web Site: https://www.jstage.jst.go.jp/article/kikaib1979/76/771/76_KJ00006772869/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可