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Study on fundamental heat transfer processes in boiling heat transfer

Research Project

Project/Area Number 21H01265
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 19020:Thermal engineering-related
Research InstitutionKyushu Institute of Technology

Principal Investigator

Yabuki Tomohide  九州工業大学, 大学院工学研究院, 教授 (70734143)

Co-Investigator(Kenkyū-buntansha) Shen Biao  筑波大学, システム情報系, 助教 (80730811)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords沸騰熱伝達 / 高速度赤外線カメラ / 人工発泡点 / ミクロ液膜 / 対流熱伝達 / マクロ液膜 / 界面活性剤 / 熱伝達機構 / 数値計算 / 三相界線 / MEMSセンサ
Outline of Research at the Start

MEMS熱流束センサを用いた固気液三相界線の局所熱流束の直接計測と高速度赤外線カメラを用いた沸騰時の壁面熱輸送場の高速可視化に,沸騰の直接数値計算,深層学習を援用する研究プラットフォームにより,沸騰熱伝達のマルチスケールモデリング,沸騰の大規模直接数値計算の実現に資する知見を獲得する.

Outline of Final Research Achievements

Water saturated pool experiments using a high-speed infrared camera and artificial nucleation sites revealed that convective heat transfer with a large area occupancy dominates wall heat transfer in a wide range of nucleation site density conditions. At least for the surfactant type and concentration tested in this study, the enhancement of heat transfer by surfactant addition was found to be due to an increase in microlayer area, and the increase in microlayer area was attributed to bubble softening (decrease in surface tension), bubble coalescence suppression, and bubble sliding motion. Using a newly developed thin-film stacked heat flux sensor with a spatial resolution of 2 microns, we measured the heat flux near the three-phase contact line in FC-72 boiling. A high local evaporative heat flux exceeding 0.6 MW/m2 was measured as the three-phase contact line passed over the sensor.

Academic Significance and Societal Importance of the Research Achievements

本研究で明らかにした各種伝熱素過程の総熱輸送量への寄与は,電子機器の冷却などに用いられる沸騰伝熱面の開発において有用な知見である.例えば,ミクロ液膜蒸発が極めて高い局所熱伝達率をもつ一方で面積占有率が小さいために総熱輸送量への寄与が小さかったことを踏まえると,表面の微細構造化や濡れの制御等でミクロ液膜蒸発を促進して全体の熱伝達率を向上させるアイデアが生まれる.界面活性剤水溶液に対する試験では,界面活性剤の添加がミクロ液膜面積を増大させ,それが熱伝達促進につながっていることが明らかになった.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (18 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (14 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Int'l Joint Research] ポールシェラー研究所(スイス)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ポール・シェラー研究所(スイス)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Observation of the mechanisms of boiling heat transfer enhancement through the addition of a nonionic surfactant using high-speed infrared thermometry2023

    • Author(s)
      Io Nanako、Tamura Ryota、Tanaka Takanori、Nakamura Jun、Yabuki Tomohide
    • Journal Title

      International Journal of Heat and Mass Transfer

      Volume: 216 Pages: 124589-124589

    • DOI

      10.1016/j.ijheatmasstransfer.2023.124589

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Heat flux partitioning and macrolayer observation in pool boiling of water on a surface with artificial nucleation sites2022

    • Author(s)
      Yajima Shota、Io Nanako、Miyazaki Koji、Yabuki Tomohide
    • Journal Title

      International Journal of Heat and Mass Transfer

      Volume: 194 Pages: 122924-122924

    • DOI

      10.1016/j.ijheatmasstransfer.2022.122924

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] プール核沸騰における壁面熱輸送機構の直接観察2023

    • Author(s)
      矢吹 智英
    • Organizer
      化学工学会 第54回秋季大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 水の飽和プール沸騰の熱伝達メカニズム2023

    • Author(s)
      矢吹 智英
    • Organizer
      混相流シンポジウム2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Observation of heat transfer mechanisms in pool saturated boiling of water and a surfactant solution2023

    • Author(s)
      Tomohide Yabuki
    • Organizer
      NSF Thermal Transport Cafe Seminar
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 数値計算による水のプール沸騰熱伝達メカニズムの研究2023

    • Author(s)
      庄野 竜生, 畑中 健太, Sato Yohei, 矢吹 智英
    • Organizer
      第60回日本伝熱シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] ニューラルネットワークに基づく沸騰現象のサーモグラフィ可視化の高速解析システムの開発2023

    • Author(s)
      塚原健,黒田容保,Shen Biao,金子暁子,畑中健太,矢吹智英
    • Organizer
      第60回日本伝熱シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 機械学習を利用した核沸騰における気泡挙動のサーモグラフィ可視化システムの開発2023

    • Author(s)
      塚原健,黒田容保,Shen Biao,金子暁子,畑中健太,矢吹智英
    • Organizer
      混相流シンポジウム2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] MEMS熱流束センサを用いた三相界線近傍の蒸発熱輸送測定2022

    • Author(s)
      畑中健太,丸山孝二,Bures Lubomir,Yohei Sato,矢吹智英
    • Organizer
      第59回 日本伝熱シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高速度赤外線カメラを用いた界面活性剤添加による沸騰熱伝達促進機構の観察2022

    • Author(s)
      井生奈那子,矢島翔太,田中孝典,柴田修平,宮崎康次,矢吹智英
    • Organizer
      第59回 日本伝熱シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 水のプール沸騰における高熱流束域での熱伝達機構の研究2022

    • Author(s)
      田村亮太,井生奈那子,宮崎康次,矢吹智英
    • Organizer
      熱工学コンファレンス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 非イオン界面活性剤水溶液のプール沸騰熱伝達機構の観察2022

    • Author(s)
      井生奈那子,田村亮太,田中孝典,中村淳,宮崎康次,矢吹智英
    • Organizer
      熱工学コンファレンス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] MEMS sensor measurements of boiling and evaporative heat transfer2022

    • Author(s)
      Tomohide Yabuki, Kenta Hatanaka
    • Organizer
      The 13th Asian Thermophysical Properties Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 人工発泡点を付与した伝熱面上のプール沸騰における熱伝達機構の観察2021

    • Author(s)
      田中 孝典, 井生 奈那子, 森﨑 仁紀, 宮崎 康次, 矢吹 智英
    • Organizer
      第58回日本伝熱シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] CONTRIBUTION OF FUNDAMENTAL HEAT TRANSFER PROCESSES TO WALL HEAT TRANSFER IN SATURATED POOL BOILING OF WATER OBSERVED BY HIGH-SPEED INFRARED THERMOMETRY2021

    • Author(s)
      Tomohide Yabuki, Takanori Tanaka, Nanako Io, Shota Yajima, Koji Miyazaki
    • Organizer
      The Second Asian Conference on Thermal Sciences
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 積層型MEMS熱流束センサを用いた三相界線のマイクロスケール熱輸送計測2021

    • Author(s)
      "丸山孝二, Lubomir Bures, Yohei Sato, 矢吹 智英
    • Organizer
      第12回 マイクロ・ナノ工学シンポジウム
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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