Development of an innovative traveling wave thermoacoustic cooler

2008 Fiscal Year Final Research Report

• Project/Area Number: 19860030
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Applied physics, general
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: UEDA Yuki Tokyo University of Agriculture and Technology, 大学院・共生科学技術研究院, 特任准教授 (00447509)
• Project Period (FY): 2007 – 2008
• Keywords: 熱 / 音 / 振動

Research Abstract

本研究では進行波音波を用いた熱音響冷凍機の性能を装置形状の最適化および作動流体の高圧化により向上させた. 得られた性能は最低到達温度-50℃, 比カルノー成績係数0.1 (@-10℃)であった. この時, 用いた作動流体は7気圧窒素であった. さらなる高圧化により, カルノー成績係数の0.3程度まで向上できることが分かった. その他に, 熱音響冷凍機の設計に使用できる計算コードの開発を行った.

Research Products

• [Journal Article] 大気圧空気を使った進行波型共鳴管冷凍機の装置形状最適化 (2009)
  • Author(s): 下川哲, 上田祐樹, 秋澤淳
  • Journal Title: 日本機械学会論文集B Vol.75
  • Peer Reviewed
• [Journal Article] Experimental evaluation of the acoustic properties of stacked screen regenerators (2009)
  • Author(s): Y. Ueda, T. Kato, C. Kato
  • Journal Title: The Journal of the Acoustical Society of America Vol. 125 Pages: 780-785
  • Peer Reviewed
• [Journal Article] Calculation method for the prediction of the performance of a traveling wave thermoacoustic cooler (2008)
  • Author(s): Y. Ueda
  • Journal Title: Journal of Power and Energy Systems Vol.2 Pages: 1276-1282
  • Peer Reviewed
• [Journal Article] Stability analysis of thermally induced spontaneous gas oscillations in straight and looped tubes (2008)
  • Author(s): Y. Ueda, C. Kato
  • Journal Title: The journal of the Acoustical Society of America Vol. 124 Pages: 851-858
  • Peer Reviewed
• [Presentation] Stability analysis of thermoacoustic spontaneous gas oscillations occurring in thermoacoustic engines (2009)
  • Author(s): Y. Ueda
  • Organizer: The international congress of Ultrasonics
  • Place of Presentation: サンチアゴ(チリ)
  • Year and Date: 2009-01-14
• [Presentation] ステンレスメッシュシート積層型蓄熱器の有効流路半径の測定 (2008)
  • Author(s): 辻康平
  • Organizer: スターリングサイクルシンポジウム
  • Place of Presentation: 国士舘大学
  • Year and Date: 2008-11-05
• [Presentation] 温度勾配の急峻さがタコニス振動の発振温度比に与える影響 (2008)
  • Author(s): 上田祐樹
  • Organizer: 流体力学会年会
  • Place of Presentation: 神戸大学
  • Year and Date: 2008-09-07
• [Presentation] Experimental evaluation of the wave number in stacked screen regenerators (2008)
  • Author(s): Y. Ueda
  • Organizer: Acoustics'08
  • Place of Presentation: パリ(フランス)
  • Year and Date: 2008-07-03
• [Presentation] 大気圧空気を使った進行波型熱音響冷凍機の装置形状最適化 (2008)
  • Author(s): 下川哲
  • Organizer: 低温工学・超電導学会
  • Place of Presentation: 明星大学
  • Year and Date: 2008-05-27
• [Presentation] 進行波を用いた熱音響冷凍機の開発 (2007)
  • Author(s): 下川哲
  • Organizer: 日本冷凍空調学会
  • Place of Presentation: 東京農工大学
  • Year and Date: 2007-10-23
• [Presentation] Calculation method for the prediction of the performance of a traveling wave thermoacoustic cooler (2007)
  • Author(s): Y. Ueda
  • Organizer: The 13^<th> International Stirling Engine Conference
  • Place of Presentation: 東京(日本)
  • Year and Date: 2007-09-24