Development of a Thermophysical Property Database for Energy Utilization in the Next Generation

• Project/Area Number: 19560218
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu Lutheran College
• Principal Investigator: AKASAKA Ryo Kyushu Lutheran College, 人文学部, 教授 (60369121)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
• Keywords: 熱物性 / 自然冷媒 / HFC冷媒 / データベース / 数値計算 / 熱物性データベース / HFC / 炭化水素 / 臨界点 / 気液平衡 / 熱工学 / 熱力学

Research Abstract

熱力学的特性に優れ,オゾン層破壊や地球温暖化に与える影響が皆無である(もしくは極めて小さい)ことから,次世代における冷凍機やヒートポンプの作動媒体として期待されている物質を対象とし,公表されている状態方程式の収集・評価・コード化を行った.対象とした物質は以下の通りである:アンモニア,ノルマルブタン,イソブタン,プロパン,二酸化炭素,n-水素,p-水素,メタノール,エタノール,ジメチルエーテル,HFC 系冷媒(R-125,R-134a, R-143a,R-152a,R-23,R-32,R-41). さらに,開発したコードを再利用可能な計算ライブラリ形式にまとめ,「熱物性プログラム・パッケージPROPATH 第13.1 版」として一般公開した.2009 年4 月現在,PROPATH 第13.1 版は,九州大学情報基盤センターを通して無償で入手することができる.

Research Products

• [Journal Article] Measurements of the Vapor-Liquid Equilibrium for the CO2 + R290 Mixture (2009)
  • Author(s): K. Tanaka, Y. Higashi, R. Akasaka, Y.Kayukawa, and K. Fujii
  • Journal Title: Journal of Chemical andEngineering Data 54(3) Pages: 1029-1033
  • Peer Reviewed
• [Journal Article] HFC 冷媒および自然冷媒に対するHelmholtz 型状態方程式と熱力学的性質の計算方法 (2009)
  • Author(s): 赤坂亮
  • Journal Title: 日本冷凍空調学会論文集 26(1) Pages: 1-15
  • NAID: 10024962485
  • Peer Reviewed
• [Journal Article] R. Akasaka, A Rigorous Calculation of the Critical Point from the Fundamental Equation of State for the Water + Ammonia Mixture (2009)
  • Author(s): R. Akasaka
  • Journal Title: International Journal of Refrigeration 32 Pages: 95-101
  • Peer Reviewed
• [Journal Article] A Rigorous Calculation of the Critical Point from the Fundamental Equation of State for the Water + Ammonia Mixture (2009)
  • Author(s): Ryo Akasaka
  • Journal Title: International Journal of Refrigeration 32 Pages: 95-101
  • Peer Reviewed
• [Journal Article] HFC冷媒および自然冷媒に対するHelmholtz型状態方程式と熱力学的性質の計算方法 (2009)
  • Author(s): 赤坂亮
  • Journal Title: 日本冷凍空調学会論文集 26 Pages: 1-15
  • NAID: 10024962485
  • Peer Reviewed
• [Journal Article] An Assessment of Thermodynamic Models for HFC Refrigerant Mixtures through the Critical Point Calculation (2008)
  • Author(s): R. Akasaka
  • Journal Title: International Journal of Thermophysics 29(4) Pages: 1328-1341
  • Peer Reviewed
• [Journal Article] A Reliable and Useful Method to Determine the Saturation State from Helmholtz Energy Equations of State (2008)
  • Author(s): R. Akasaka
  • Journal Title: Journal of Thermal Science and Technology 3(3) Pages: 442-451
  • NAID: 130000098816
  • Peer Reviewed
• [Journal Article] An Assessment of Thermodynamic Models for HFC Refrigerant Mixtures Through the Critical Point Calculation (2008)
  • Author(s): Ryo Akasaka
  • Journal Title: International Journal of Thermophysics 29 Pages: 1328-1341
  • Peer Reviewed
• [Journal Article] A Reliable and Useful Method to Determine the Saturation State from Helmholtz Energy Equations of State (2008)
  • Author(s): Ryo Akasaka
  • Journal Title: Journal of Thermal Science and Technology 3 Pages: 442-451
  • NAID: 130000098816
  • Peer Reviewed
• [Journal Article] Calculation of the critical point for mixtures using mixture models based on Helmholtz energye equations of state (2008)
  • Author(s): Ryo Akasaka
  • Journal Title: Fluid Phase Equilibria 263 Pages: 102-108
  • Peer Reviewed
• [Journal Article] Calculation of the Critical Point for Mixtures using Mixture Models based on Helmholtz Energy Equations of State (2007)
  • Author(s): R. Akasaka
  • Journal Title: Fluid Phase Equilibria 263 Pages: 102-108
  • Peer Reviewed
• [Journal Article] Vapor-liquid Equilibrium Measurements and Correlations for the Binary Mixture of Difluoromethane + Isobutane and the Ternary Mixture of Propane + Isobutane + Difluoromethane (2007)
  • Author(s): R. Akasaka,Y. Higashi, K. Tanaka, Y. Kayukawa, and K. Fujii
  • Journal Title: Fluid Phase Equilibria 261 Pages: 286-291
  • Peer Reviewed
• [Journal Article] Vapor-liquid equilibrium measurements and correlations for the binary mixture of difluoromethane+isobutane and the ternary mixture of propane+isobutane+difluoromethane (2007)
  • Author(s): Ryo Akasaka
  • Journal Title: Fluid Phase Equilibria 261 Pages: 286-291
  • Peer Reviewed
• [Presentation] 3成分混合冷媒の臨界点計算によるHelmholtz型混合モデルの評価 (2008)
  • Author(s): 赤坂亮
  • Organizer: 第29回日本熱物性シンポジウム
  • Place of Presentation: 日本女子大学(東京)
  • Year and Date: 2008-10-08
• [Presentation] PROPATH-A Program Package for Thermophysical Properties of Fluids (2008)
  • Author(s): Ryo Akasaka
  • Organizer: 8th IIR Gustav Lorentzen Conference on Natural Working Fluids
  • Place of Presentation: コペンハーゲン(デンマーク)
  • Year and Date: 2008-09-10
• [Presentation] Modeling of the Vapor-Liquid Equilibrium of the Carbon Dioxide + Dimethyl Ether Mixture by Three Different Approaches (2008)
  • Author(s): R. Akasaka
  • Organizer: AIChE Annual Meeting
  • Place of Presentation: Philadelphia, PA, USA
• [Presentation] Helmholtz 型状態式を用いたCO2+DME 混合物の気液平衡モデル (2008)
  • Author(s): 赤坂亮
  • Organizer: 2008 年度日本冷凍空調学会年次大会
  • Place of Presentation: 大阪
• [Presentation] PROPATH -A Program Package for Thermophysical Properties of Fluids (2008)
  • Author(s): R. Akasaka, S. Momoki, T. Yamaguchi, and Y. Takata
  • Organizer: 8th IIR Gustav Lorentzen Conference on Natural Working Fluids
  • Place of Presentation: Copenhagen, Denmark
• [Presentation] 3 成分混合冷媒の臨界点計算によるHelmholtz 型混合モデルの評価 (2008)
  • Author(s): 赤坂亮
  • Organizer: 第29 回日本熱物性シンポジウム
  • Place of Presentation: 東京
• [Presentation] Helmholtz 型状態式を用いた混合冷媒の臨界点の計算 (2007)
  • Author(s): 赤坂亮
  • Organizer: 2007年度日本冷凍空調学会年次大会
  • Place of Presentation: 東京
• [Presentation] Program Package for Thermophysical Properties of Fluids: PROPATH -A New Implementation of the VTPR Equation of State - (2007)
  • Author(s): T.Yamaguchi, S. Momoki, R.Akasaka, T. Honda, Y. Takata, and T. Ito
  • Organizer: The 8th Asian Thermophysical Properties Conference
  • Place of Presentation: Fukuoka, Japan
• [Presentation] Helmholtz型状態式を用いた混合冷媒の臨界点の計算 (2007)
  • Author(s): 赤坂 亮
  • Organizer: 平成19年度日本冷凍空調学会年次大会
  • Place of Presentation: 東京農工大学
• [Presentation] Vapor-liquid equilibrium measurements for the CO2+R290 mixture (2007)
  • Author(s): Yukihiro Higashi
  • Organizer: The 22nd IIR International Congress of Refrigeration
  • Place of Presentation: Beijing,China
• [Presentation] Program Package for Thermophysical Properties of Fluids:PROPATH-A new implementation of the VTPR equation of state (2007)
  • Author(s): Tomohiko Yamaguchi
  • Organizer: The 8th Asian Thermophysical Properties Conference
  • Place of Presentation: Fukuoka,Japan
• [Presentation] Vapor-liquid equilibrium measurements and correlations for binary and ternary mixtures of R290,R600a,and R32 in the temperature range from 260K to 330K (2007)
  • Author(s): Ryo Akasaka
  • Organizer: The 11th International Conference on Properties and Phase Equilibria for Product and Process Design(PPEPPD 2007)
  • Place of Presentation: Crete,Greece
• [Remarks] 流体の熱物性値プログラム・パッケージPROPATH 第13.1 版,(2008).
  • URL: http://www.cc.kyushu-u.ac.jp/scp/system/library/PROPATH/PROPATH.html