Research of thermodynamics of self rewetting fluids to achieve enhanced boiling heat transfer

• Project/Area Number: 15K17990
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thermal engineering
• Research Institution: Tokyo University of Science
• Principal Investigator: Kaneko Toshihiro 東京理科大学, 理工学部機械工学科, 助教 (00711540)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 表面張力 / 気液界面 / 気液平衡 / 1-ブタノール水溶液 / 自己浸濡性流体 / 分子動力学 / 化学物理 / 熱工学 / 計算物理 / ブタノール水溶液

Outline of Final Research Achievements

The molecular mechanism of surface tension rise with increasing temperature of self rewetting fluids which is candidate working fluid for high performance boiling heat transfer is investigated. Using all-atom molecular dynamics simulations, liquid--vapor equilibrium of 1-butanol aqueous solutions is obtained. 1-butanol aqueous solutions is typical example of self rewetting fluid. By changing temperature at constant concentration, surface tension, surface excess, and the behavior of 1-butanol molecules at the interface are studied and the relation among them is discussed.

Research Products

• [Presentation] 気液平衡状態における1-ブタノール／水混合系の分子動力学シミュレーション (2018)
  • Author(s): 金子敏宏*，坂口裕宜，土屋翼，上野一郎
  • Organizer: 第55回日本伝熱シンポジウム
• [Presentation] Molecular dynamics simulation of liquid-vapor coexistence of dilute 1-butanol aqueous solution (2017)
  • Author(s): Y. Sakaguchi, T. Kaneko*, and I. Ueno
  • Organizer: The Ninth JSME-KSME Thermal and Fluids Engineering Conference (TFEC9)
  • Place of Presentation: Okinawa Convention Center (Okinawa, Japan)
  • Year and Date: 2017-10-27
  • Int'l Joint Research
• [Presentation] Temperature dependence of surface tension of 1-butanol aqueous solution (2017)
  • Author(s): Y. Sakaguchi, T. Kaneko*, and I. Ueno
  • Organizer: 10th Liquid Matter Conference
  • Place of Presentation: Cankarjev dom Cultural and Congress Centre (Ljubljana, Slovenia)
  • Year and Date: 2017-07-17
  • Int'l Joint Research
• [Presentation] 1-ブタノール水溶液の表面張力温度依存性の研究 (2017)
  • Author(s): 坂口裕宜，金子敏宏*，上野一郎
  • Organizer: 第54回日本伝熱シンポジウム
• [Presentation] アルコール水溶液における表面張力温度依存性の解明 (2017)
  • Author(s): 土屋翼*，坂口裕宜，金子敏宏，上野一郎
  • Organizer: 第31回分子シミュレーション討論会
• [Presentation] 水/アルコール2成分系における表面張力温度依存性の解明 (2016)
  • Author(s): 坂口裕宜*，金子敏宏，上野一郎
  • Organizer: 第30回分子シミュレーション討論会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2016-11-30
• [Presentation] 水/アルコール2成分系における表面張力温度依存性の解明 (2015)
  • Author(s): 坂口裕宜*，金子敏宏，上野一郎
  • Organizer: 第29回分子シミュレーション討論会
  • Place of Presentation: 朱鷺メッセ(新潟県新潟市)
  • Year and Date: 2015-11-30
• [Presentation] Predicting thermal properties of fluid based on the intermolecular interactions (2015)
  • Author(s): Toshihiro KANEKO
  • Organizer: 3rd International Workshops on Advances in Computational Mechanics (IWACOM-III)
  • Place of Presentation: KFC Hall & Rooms (Sumida-ku, Tokyo, Japan)
  • Year and Date: 2015-10-12
  • Int'l Joint Research / Invited
• [Remarks] 金子敏宏個人ページ
  • URL: http://toshihiro-kaneko.tonkotsu.jp/
• [Remarks] 東京理科大学教員プロフィール
  • URL: https://www.tus.ac.jp/fac_grad/p/index.php?683d
• [Remarks] 金子敏宏個人ページ
  • URL: http://toshihiro-kaneko.tonkotsu.jp/index.html
• [Remarks] 東京理科大学教員プロフィール
  • URL: http://www.tus.ac.jp/fac_grad/p/index.php?683d