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Design and evaluation of a novel heat utilization system with thermal energy storage and transport expanding the area of waste heat recovery

Research Project

Project/Area Number 20K23360
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 1101:Environmental analyses and evaluation, environmental conservation measure and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Fujii Shoma  東京大学, 未来ビジョン研究センター, 特任助教 (80881200)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords熱融通 / 排熱回収 / バイオマス / 蓄熱輸送 / 蓄熱 / 排熱 / 再生可能エネルギー / 木質バイオマス / 排熱利用
Outline of Research at the Start

出力安定性が高いバイオマス発電の導入促進が期待されている.しかしバイオマス発電所の発電効率は低水準であり,排熱利用の実現が普及への鍵となる.欧州と比較して地域熱供給が普及していない我が国では,従来の熱導管による熱供給では限界がある.そこで,本研究では排熱を蓄熱輸送によって近隣産業で有効利用し,排熱回生量を面的に拡充する熱電併給システムの構築を目指す.木質バイオマス発電所に蓄熱技術を組み込む設計を施し,経済的に熱を輸送可能な「熱可搬距離」を算出する.木質バイオマス発電所と熱需要の統計データ,熱可搬距離により排熱回生量を定量化し,感度解析によりさらなる開発が必要な要素技術へフィードバックする.

Outline of Final Research Achievements

By comparing the balance between heat input and waste heat and the temperature range of waste heat from the developed process flow diagram of the biomass power plant, the amount of waste heat relative to heat input and the temperature range are reasonable for power plants using biomass as well as for other general industries. A database of industries using biomass was created to estimate the amount of biomass-derived waste heat and its temperature range, and the amount of heat demand and its temperature range in basic municipalities were estimated as well. The waste heat recovery potential was successfully calculated based on the design results of numerical analysis of thermochemical energy storage and transport system using a water vapor adsorption/desorption cycle of zeolite.

Academic Significance and Societal Importance of the Research Achievements

地域の熱の脱炭素に貢献する,バイオマスの未利用熱を回生する熱融通システムのポテンシャルをトップダウン手法とボトムアップ手法の組み合わせにより定量化した.
国や都道府県単位では解像度が粗かった熱の検討を,基礎自治体単位で評価することで,熱融通技術の適用可能性が高い基礎自治体を示すことができ,実装に向けた検討をスピードアップすることが可能となる.

Report

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

    (7 results)

All 2022 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Effect of bagasse drying on thermal energy storage utilizing zeolite water vapor ad/desorption at a sugar mill2022

    • Author(s)
      Fujii Shoma、Kanematsu Yuichiro、Kikuchi Yasunori、Nakagaki Takao
    • Journal Title

      Journal of Energy Storage

      Volume: 51 Pages: 104495-104495

    • DOI

      10.1016/j.est.2022.104495

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bench-Scale Demonstration Test and Design of a Moving Bed Counter-Flow Heat Charger for Unused Energy from a Sugar Mill2021

    • Author(s)
      Fujii Shoma、Miyagawa Taiga、Nakagaki Takao、Kanematsu Yuichiro、Kikuchi Yasunori、Hamada Yosuke
    • Journal Title

      KAGAKU KOGAKU RONBUNSHU

      Volume: 47 Issue: 6 Pages: 191-199

    • DOI

      10.1252/kakoronbunshu.47.191

    • NAID

      130008118911

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 基礎自治体レベルのエネルギーフローを用いた脱炭素に向けた熱融通の役割の検討2022

    • Author(s)
      藤井祥万, 中垣隆雄, 兼松祐一郎, 尾下優子, 菊池康紀
    • Organizer
      第26回動力エネルギー技術シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Polygeneration from sugarcane industries enhanced by functionalizing novel cultivars and excess thermal energy2022

    • Author(s)
      Fujii Shoma、Kanematsu Yuichiro、Kikuchi Yasunori
    • Organizer
      THE 32nd European Symposium on Computer Aided Process Engineering (ESCAPE32)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Integration of experimental study and computer-aided design: A case study in thermal energy storage2022

    • Author(s)
      Fujii Shoma、Kanematsu Yuichiro、Kikuchi Yasunori
    • Organizer
      the 14th International Symposium on Process Systems Engineering PSE 2021+
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 製糖工場の未利用熱蓄熱輸送システムのライフサイクルGHG排出量評価2021

    • Author(s)
      〇藤井 祥万,兼松 祐一郎,中垣 隆雄,菊池 康紀
    • Organizer
      化学工学会第86年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Techno-economic and environmental aspects of thermochemical energy storage system to utilize unused energy of sugarcane: A case study at sugar mill2021

    • Author(s)
      〇Fujii,S., Kanematsu,Y., Nakagaki,T and Kikuchi,Y.
    • Organizer
      The 14th Biennial International Conference on EcoBalance
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-09-29   Modified: 2023-01-30  

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