ARAKI Takuto

Affiliation

Faculty of Engineering, Division of Systems Research

Job Title

Professor

Date of Birth

1975



Graduating School 【 display / non-display

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    1998

    Kyoto University   Faculty of Engineering   Department of Engineering Science  

Graduate School 【 display / non-display

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    2003

    Kyoto University  Graduate School, Division of Engineering  Department of Mechanical Engineering  Doctor Course  Completed

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    2000

    Kyoto University  Graduate School, Division of Engineering  Department of Mechanical Engineering  Master Course  Completed

Degree 【 display / non-display

  • Doctor of Engineering -  Kyoto University

Campus Career 【 display / non-display

  • 2020.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Systems Research   Professor  

  • 2007.04
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    2020.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Systems Research   Associate Professor  

  • 2021.04
    -
    Now

    Concurrently   Yokohama National UniversityInterfaculty Graduate School of Innovative and Practical Studies   Professor  

  • 2020.04
    -
    Now

    Concurrently   Yokohama National UniversityGraduate School of Engineering   Department of Systems Integration   Professor  

  • 2020.04
    -
    Now

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Mechanical Engineering and Materials Science   Professor  

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External Career 【 display / non-display

  • 2004.01
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    2007.03

    Toyohashi University of Technology   Department of Electrical and Electronic Engineering   Research Assistant  

  • 2003.07
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    2003.12

    JSPS Postdoc, University of California Los Angels   Research Fellowship for Young Scientists of the Japan Society for the Promotion of Science  

  • 2002.04
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    2003.06

    JSPS Postdoc, Kyoto University, Fuclty of Engineering, Department of Mechanical Engineering  

Academic Society Affiliations 【 display / non-display

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    The Heat Transfer Society of Japan

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    The Japan Society of Mechanical Engineers

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    The Electrochemical Society of Japan

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    The Institute of Electrical Engineers of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Fluid engineering

  • Thermal engineering

 

Books 【 display / non-display

  • Fuel Cells and Hydrogen: From Fundamentals to Applied Research

    Viktor Hacker, Shigenori Mitsushima et al. (Part: Single Work )

    Elsevier  2018.08 ISBN: 0128114592

    Amazon

  • Advanved Studies of Polymer Electrolyte Fuel Cells

    Shigenori Mitsushima, Takuto Araki, Ken-ichiro Ota, Viktor Hacker, Matthuasus Siebenhofer (Part: Joint Work )

    TU Graz  2015.11

     View Summary

    固体高分子形燃料電池に関して,電気化学的な基礎,熱物質輸送,モデリング,設計,評価手法,社会実装など包括的に解説した. 特に燃料電池内の熱流体・物質輸送現象について,基礎となる方程式から解説し,実際の測定手法についても詳述した.さらに,それらを組み合わせた数値解析手法とその結果について説明した.

Papers 【 display / non-display

  • Effect of water distribution in gas diffusion layer on proton exchange membrane fuel cell performance

    Like Yue, Shixue Wang, Takuto Araki, Yoshio Utakaa, Yulin Wang

    International Journal of Hydrogen Energy ( Elsevier )  46 ( 3 )   2969 - 2977   2021.01  [Refereed]

    Joint Work

    DOI

  • Investigating the vapour transport phenomena inside the cathode gas diffusion layer media by controlling local temperature gradient inside an operating proton exchange membrane fuel cell

    Shigemasa Kaito, Sato Hayate, Otsuki Yota, Kurosu Masato, Araki Takuto

    ELECTROCHIMICA ACTA ( Elsevier )  365   137383-1 - 137383-8   2021.01  [Refereed]

    Joint Work

    Web of Science DOI

  • Numerical analysis of current efficiency distributions in a protonic ceramic fuel cell using Nernst-Planck-Poisson model

    Li Kunpeng, Araki Takuto, Kawamura Toshiki, Ota Atsuhito, Okuyama Yuji

    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY ( Elsevier )  45 ( 58 )   34139 - 34149   2020.11  [Refereed]

    Joint Work

    Web of Science DOI

  • Measurement of temperature difference on catalyst layer surface under rib and channel in PEFC using micro sensors

    Yota Otsuki, Kaito Shigemasa, Takuto Araki

    International journal of heat and mass transfer ( Elsevier )  160   120169-1 - 120169-8   2020.10  [Refereed]

    Joint Work

    DOI

  • Influence of the Diffusion Media Structure for the Bubble Distribution in Direct Formic Acid Fuel Cells

    Watanabe Konosuke, Araki Takuto, Tsujiguchi Takuya, Inoue Gen

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   167 ( 13 )   134502-1 - 134502-7   2020.09  [Refereed]

    Joint Work

    Web of Science DOI

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Presentations 【 display / non-display

  • Behavior observation of oxygen bubbles generated in PEM water electrolysis using a visible light camera

    NAKAYAMA Takeshi, WATANABE Konosuke, ARAKI Takuto

    The Proceedings of the National Symposium on Power and Energy Systems  2019   The Japan Society of Mechanical Engineers

     View Summary

    In order to construct a hydrogen energy system, water electrolysis technology for converting renewable energy into hydrogen has recently attracted attention. In particular, a proton exchange membrane (PEM) water electrolysis can be operated at high current density and can produce high purity hydrogen compared to other water electrolysis techniques. However, increasing th0e efficiency is indispensable for putting PEM water electrolysis into practical use in the future. One of the serious problems is that the staying of generated oxygen bubbles in the reaction site inhibits the water supply and significantly reduces the reaction efficiency. However, the mechanism of generation, growth and detachment of oxygen bubbles on the reaction site in the PEM electrolyzer has not been clarified. Therefore, in this research, in order to understand the two-phase flow phenomenon of this oxygen bubble, the behavior of the bubbles was observed using a visible light high-speed camera and a visualized electrolysis cell.

    DOI CiNii

  • Liquid-state electrical components using photoresponsive ionic liquid

    Kozaki Takashi, Maruo Shoji, Watanabe Masayoshi, Ueno Kazuhide, Ota Hiroki, Saito Satoshi, Otsuki Yota, Matsuda Ryosuke, Isoda Yutaka, Endo Takuma, Nakamura Fumika, Araki Takuto, Furukawa Taichi

    The Proceedings of the Symposium on Micro-Nano Science and Technology  2019   The Japan Society of Mechanical Engineers

     View Summary

    <p>Liquid-state electronics utilizing functional liquids confined in soft templates as the sensing and actuating component present the ideal platform for enabling conformal coverage of electronic systems on curved and soft surfaces. However, to date, optoelectronic devices based on functional liquid materials as represented by photodetectors and optical memories still have not been proposed; this advancement is crucial to scaling up current liquid-state devices to a system level. Here, this study proposes optoelectronic devices based on liquid metal and photo-switchable ionic liquid with liquid-liquid heterojunction technology. The sensing and memory schemes we present are generic for different liquid-state devices, enabling different functionality to be added to the liquid-state electronics. As a proof of concept, we demonstrate a light sensor composed of the ionic liquid, and an optical memory using a composite of the ionic liquid and polypropylene glycol. These devices are important advancements towards the realization of liquid-state electronic systems.</p>

    DOI CiNii

  • Influence of oxygen concentration in feed gas on SOEC co-electrolysis system efficiency

    2018.12.18