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Conceptual Design of Microplastic Collection Device from Seawater with Magneto-Archimedes Effect

Research Project

Project/Area Number 20K20989
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 21:Electrical and electronic engineering and related fields
Research InstitutionHokkaido University

Principal Investigator

Noguchi So  北海道大学, 情報科学研究院, 准教授 (30314735)

Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
KeywordsUltrahigh magnetic field / Superconducting magnet / Microplastic collection / 磁気分離 / 超高磁場応用 / マイクロプラスチック / マイクロプラスティック / 超高磁場 / 高磁場応用
Outline of Research at the Start

海中のマイクロプラスティックを効果的に回収する装置の検討を実施する。近年、30テスラを超えるコンパクトな高磁場マグネットが開発できるようになってきたことから、磁気アルキメデス法と呼ばれる大きな磁場勾配を利用した磁気分離方法を利用して、海中マイクロプラスティック回収装置の実現性を検討する。1時間あたりの回収量など、実用化のための性能検討をシミュレーションを通して実施する。

Outline of Final Research Achievements

Based on the magneto-Archimedes theory, a new microplastic collector which utilizes a strong magnetic force by a high magnetic field gradient was conceptually designed. Therefore, a simulation tool has been developed to obtain the phenomenon of microplastics in seawater. As a result, it was clarified to need a high magnetic field gradient (12.5 T/m) and a strong magnetic field beyond 10 T over 1.5-m length. Next, a high field magnet was designed satisfying such field conditions. The present magnet-manufacturing technique is inadequate to withstand a high magnetic stress working to the designed magnet. In the future, a new magnet technology to overcome a high stress must be developed.

Academic Significance and Societal Importance of the Research Achievements

海中のマイクロプラスチックの個数は年々増加しており、生態系への影響が懸念されている。東アジア海域のマイクロプラスチック個数は、他の海域に比べて特に多く、マイクロプラスチックの回収装置の開発が強く望まれている。近年、20テスラを超えるマグネットが開発されてきており、同技術を用いて、マイクロプラスチックを回収する装置の実現可能性について検討した。その結果、電磁応力に耐えうるマグネットを開発できれば、90%近いマイクロプラスチックが回収可能であることが示された。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (7 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Electromagnetic and thermal characteristics of supplementary-conductor-based no-insulation REBCO pancake coils with comparison to conventional-based ones2023

    • Author(s)
      Mato Takanobu、Noguchi So
    • Journal Title

      Cryogenics

      Volume: 131 Pages: 103669-103669

    • DOI

      10.1016/j.cryogenics.2023.103669

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stress and Deformation Analysis of REBCO Pancake Coils With Individual Turn Movement2023

    • Author(s)
      Kodaka Kazuma、Noguchi So
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 33 Issue: 5 Pages: 1-5

    • DOI

      10.1109/tasc.2023.3237122

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microplastic Collection With Ultra-High Magnetic Field Magnet by Magnetic Separation2022

    • Author(s)
      Mato Takanobu、Noguchi So
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 32 Issue: 4 Pages: 1-5

    • DOI

      10.1109/tasc.2021.3135796

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Plastic Deformation Simulation of REBCO Tapes Using Particle Methods2022

    • Author(s)
      Mato Takanobu、Noguchi So
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 32 Issue: 6 Pages: 1-5

    • DOI

      10.1109/tasc.2022.3185568

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An Optimal Configuration Method of Superconducting Magnet With Iron Shield Using Model Order Reduction2022

    • Author(s)
      Noguchi So、Ueda Hiroshi、Watanabe Tomonori、Nagaya Shigeo、Ishiyama Atsushi、Fukuda Mitsuhiro
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 32 Issue: 6 Pages: 1-5

    • DOI

      10.1109/tasc.2022.3175454

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sudden Discharging and Overcurrent Simulations of REBCO Coils Coated With Conductive Epoxy Resin2021

    • Author(s)
      Takanobu Mato, So Noguchi
    • Journal Title

      IEEE Transactions on applied Superconductivity

      Volume: 31 Issue: 5 Pages: 1-5

    • DOI

      10.1109/tasc.2021.3057839

    • NAID

      120007039235

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Current and Hoop Stress Analysis of NI REBCO Pancake Coils with Local Contact Resistance Variation2022

    • Author(s)
      Kazuma Kodaka, So Noguchi
    • Organizer
      Applied Superconductivity Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Conceptual Design for Microplastic Collection Device from Seawater with High Field HTS Magnet2022

    • Author(s)
      Takanobu Mato, So Noguchi
    • Organizer
      2022 Joint MMM-INTERMAG Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Microplastic Separation Simulation from Seawater by Strong Magnetic Force Based on Magnetic and Fluid Analysis2022

    • Author(s)
      Takanobu Mato, So Noguchi
    • Organizer
      23rd Conference on the Computation of Electromagnetic Fields
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ultra-high magnetic field magnet design for microplastic collection by magnetic separation2021

    • Author(s)
      Takanobu Mato, So Noguchi, Atsushi Ishiyama
    • Organizer
      The 15th European Conference on Applied Superconductivity
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Progress of no-insulation HTS magnet dvelopment towards ultra-high magnetic field generation2021

    • Author(s)
      Takanobu Mato, Syumpei Mori, So Noguchi
    • Organizer
      First International Conference ETIMA
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanical stress simulation of REBCO tapes using particle methods2021

    • Author(s)
      Takanobu Mato, Yusuke Nakai, So Noguchi
    • Organizer
      27th International Conference on Magnet Technology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sability Analysis for REBCO Pancake Coils with Current Bypass to Escape from Local Normal Zone2020

    • Author(s)
      Takanobu Mato, So Noguchi
    • Organizer
      33rd International Symposium on Superconductivity
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-08-03   Modified: 2024-01-30  

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