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Improvement of the Performance of Direct-Generation Type Polymer Electrolyte Fuel Cells and Their Systemization

Research Project

Project/Area Number 15560188
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionOsaka City University

Principal Investigator

WAKISAKA Tomoyuki  Osaka City University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (10089112)

Co-Investigator(Kenkyū-buntansha) TAKADA Yogo  Osaka City University, Graduate School of Engineering, Lecturer, 大学院・工学研究科, 講師 (70295682)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2004: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2003: ¥2,700,000 (Direct Cost: ¥2,700,000)
KeywordsPolymer Electrolyte Fuel Cell / Direct-Generation Type / Ethanol / Electro-Chemical Reaction / Computational Fluid Dynamics / Hybrid System / Time-Splitting Method / Power Control / マイクロチャンネル
Research Abstract

In this research project, the direct-generation type PEFC (Polymer Electrolyte Fuel Cell) without a reformer was taken as an object of investigation among various types of PEFCs, and it was attempted to use ethanol as innocuous liquid fuel. In this case, the power generation of the PEFC was low, and therefore measures to improve the performance were examined. The power generation performance of a self-made PEEC with MEAs (Membrane Electrode Assemblies) prepared by means of the Cast Method (original making method of MEA) was measured by supplying the ethanol aqueous solution directly. As a result, an increase of about two times in output power was attained in comparison with MEAs prepared by other conventional making methods. When porous metal foam plates made of nickel were used as diffusion layers, the PEFC output power became 1.8 times larger even in the case of passive-type PEFC without any auxiliary equipment. Reaction products in the anode-side flow passage of the PEFC were analyz … More ed. C0_2 was detected but CO was not detected by gas chromatograph. Acetic acid and acetaldehyde as by-products were detected by liquid chromatograph. These results mean that ethanol is oxidized to acetic acid and acetaldehyde, and partly to C0_2. For investigating the behavior of those by-products, a three-dimensional numerical analysis model for the PEFC was composed on the basis of the original GTT method, and the flow in the PEFC was numerically analyzed. Furthermore, the flow visualization and the flow analysis by the PIV (Particle Image Velocimetry) method were carried out. As a result, it has been found that a serpentine flow passage is effective in discharging such by-products.
As a hydrogen-fuelled small-size and light-weight PEFC, an original passive-type small cylindrical PEFC (named "Power Tube") which can generate a specific power of 13OmW/g has been contrived. In the case of hydrogen-fuelled PEFCs, output energy density is high but output power density is low for the power source of an electric vehicle. Therefore, it is necessary to apply a hybrid system composed of PEFCs and electricity storage devices. In this research project, a hybrid system composed of passive-type PEFCs and electric double layer capacitors was constructed for a light-weight electric vehicle. For controlling this hybrid system, an original Time-Splitting Method (TSM) which can control the power supply ratio to the motor according to running states has been contrived. As power supply modes to the motor, series and parallel modes were tested, and it has been shown that TSM can easily control the motor power in both modes. Less

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (22 results)

All 2005 2004 2003 Other

All Journal Article (18 results) Publications (4 results)

  • [Journal Article] 自立型固体高分子燃料電池と電気二重層キャパシタを用いたハイブリッドシステムの電動軽車両への応用(時分割によるパワー制御)2005

    • Author(s)
      今西啓之, 中村拓司, 高田洋吾, 脇坂知行
    • Journal Title

      日本機械学会論文集(B編) Vol.71,No.702

      Pages: 674-681

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Investigation on the Effects of the Making Process and Structure of a Membrane Electrode Assembly on the Performance of Polymer Electrolyte Fuel Cells2005

    • Author(s)
      T.Wakisaka, G.Koike, K.Nishioka, Y.Takada
    • Journal Title

      The Sixth KSME-JSME Thermal and Fluids Engineering Conference (CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 自立型固体高分子燃料電池の性能向上と小型・軽量化2005

    • Author(s)
      石井利長, 谷中悟史, 高田洋吾, 脇坂知行
    • Journal Title

      日本機械学会関西支部第80期定時総会講演会講演論文集 No.054-1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] エタノール直接発電型固体高分子燃料電池のアノード側流路内の流動解析2005

    • Author(s)
      谷中悟史, 石井利長, 高田洋吾, 脇坂知行
    • Journal Title

      日本機械学会関西支部第80期定時総会講演会講演論文集 No.054-1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Application of a Hybrid System with Passive-type Polymer Electrolyte Fuel Cells and Capacitors to a Lightweight Electric Vehicle (Power Control by Time-Splitting Method)2005

    • Author(s)
      Hiroyuki Imanishi, Takuji Nakamura, Yogo Takada, tomoyuki Wakisaka
    • Journal Title

      Transactions of JSME, Ser.B Vol.71,No.702

      Pages: 674-681

    • NAID

      110005051452

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Investigation on the Effects of the Making Process and Structure of a Membrane Electrode Assembly on the Performance of Polymer Electrolyte Fuel Cells2005

    • Author(s)
      Tomoyuki Wakisaka, George Koike, Kojiro Nishioka, Yogo Takada
    • Journal Title

      Proceedings of the Sixth KSME-JSME Thermal and Fluids Engineering Conference JJ08(CD-ROM)

      Pages: 1-4

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improvement of the Performance of Passive-type Polymer Electrolyte Fuel Cells and an Attempt to Make Small-size and Light-weight Fuel Cells2005

    • Author(s)
      Toshinaga Ishii, Satoshi Taninaka, Yogo Takada, Tomoyuki Wakisaka
    • Journal Title

      Proceedings of the 80th Annual Meeting of JSME Kansai Branchi No.054-1

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Analysis of Liquid Flow in the Anode-side Passage of a Direct Ethanol Polymer Electrolyte Fuel Cell2005

    • Author(s)
      Satoshi Taninaka, Toshinaga Ishii, Yogo Takada, Tomoyuki Wakisaka
    • Journal Title

      Proceedings of the 80th Annual Meeting of JSME Kansai Branchi No.054-1

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 自立型固体高分子燃料電池と電気二重層キャパシタを用いたハイブリッドシステムの電動軽車両への応用(時分割によるパワー制御)2005

    • Author(s)
      今西啓之, 中村拓司, 高田洋吾, 脇坂知行
    • Journal Title

      日本機械学会論文集(B編) Vol.71, No.702

      Pages: 674-681

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Investigation on the Effects of the Making Process and Structure of a Membrane Electrode Assembly on the Performance of Polymer Electrolyte Fuel Cells2005

    • Author(s)
      T.Wakisaka, G.Koike, K.Nishioka, Y.Takada
    • Journal Title

      The Sixth KSME-JSME Thermal and Fluids Engineering Conference CD-ROM(JJ08)

      Pages: 1-4

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 時分割方式パワー制御による自立型固体高分子燃料電池の高効率化2005

    • Author(s)
      今西啓之, 高田洋吾, 脇坂知行
    • Journal Title

      講演論文集(日本機械学会関西支部第80期定時総会講演会) No.054-1

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 自立型固体高分子燃料電池の性能向上と小型・軽量化2005

    • Author(s)
      石井利長, 谷中悟史, 高田洋吾, 脇坂知行
    • Journal Title

      講演論文集(日本機械学会関西支部第80期定時総会講演会) No.054-1

    • Related Report
      2004 Annual Research Report
  • [Journal Article] エタノール直接発電型固体高分子燃料電池のアノード側流路内の流動解析2005

    • Author(s)
      谷中悟史, 石井利長, 高田洋吾, 脇坂知行
    • Journal Title

      講演論文集(日本機械学会関西支部第80期定時総会講演会) No.054-1

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 固体高分子型燃料電池における物質移動・電気化学反応解析のためのモデリング2004

    • Author(s)
      小池穣二, 谷中悟史, 高田洋吾, 脇坂知行
    • Journal Title

      日本機械学会関西支部第79期定時総会講演会講演論文集 No.044-1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of a Polymer Electrolyte Fuel Cell for Analyzing Substance Transfer and Electro-Chemical Reaction2004

    • Author(s)
      George Koike, Satoshi Taninaka, Yogo Takada, Tomoyuki Wakisaka
    • Journal Title

      Proceedings of the 79th Annual Meeting of JSME Kansai Branchi No.044-1

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 自立型固体高分子燃料電池を用いた電動軽車両用ハイブリッドシステムのモデリング2004

    • Author(s)
      高田洋吾, 脇坂知行, 今西啓之, 吉井大智, 中村拓司
    • Journal Title

      日本機械学会2004年度年次大会講演論文集(5) No.04-1

      Pages: 213-214

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Fundamental Study on a Hybrid Power System of Passive-type Polymer Electrolyte Fuel Cells and Capacitors2003

    • Author(s)
      H.Imanish, T.Nakamura, Y.Takada, T.Wakisaka
    • Journal Title

      Journal of Asian Electric Vehicles vol.1,No.2

      Pages: 463-470

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Fundamental Study on a Hybrid Power System of Passive-type Polymer Electrolyte Fuel Cells and Capacitors2003

    • Author(s)
      Hiroyuki Imanishi, Takuji Nakamura, Yogo Takada, Tomoyuki Wakisaka
    • Journal Title

      Journal of Asian Electric Vehicles Vol.1,No,2

      Pages: 463-470

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] 脇坂知行, 西岡宏二郎, 小池穣二, 長原耕平, 高田洋吾: "エタノール直接発電型固体高分子燃料電池の作動特性"日本機械学会関西支部第79期定時総会講演会講演論文集. No.044-1. 2-37-2-38 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 中村拓司, 今西啓之, 吉井大智, 高田洋吾, 脇坂知行: "自立型固体高分子燃料電池とキャパシタを用いたハイブリッド電動軽車両の自分割方式によるパワー制御"日本機械学会関西支部第79期定時総会講演会講演論文集. No.044-1. 2-49-2-50 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高田洋吾, 古市紀之, 八賀正司, 瀧山武, 脇坂知行: "マイクロチャンネル内流れの数値解析とラインLDVによる計測"日本機械学会関西支部第79期定時総会講演会講演論文集. No.044-1. 2-53-2-54 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 小池穣二, 谷中悟史, 高田洋吾, 脇坂知行: "固体高分子型燃料電池における物質移動・電気化学反応解析のためのモデリング"日本機械学会関西支部第79期定時総会講演会講演論文集. No.044-1. 2-57-2-58 (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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