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Akasaka Ryo  赤坂 亮

… Alternative Names

AKASAKA Ryo  赤坂 亮

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Researcher Number 60369121
Other IDs
  • ORCIDhttps://orcid.org/0000-0003-2641-6031
Affiliation (Current) 2025: 九州産業大学, 理工学部, 教授
Affiliation (based on the past Project Information) *help 2020 – 2023: 九州産業大学, 理工学部, 教授
2017: 九州産業大学, 理工学部, 教授
2013 – 2016: 九州産業大学, 工学部, 教授
2010 – 2012: 九州産業大学, 工学部, 准教授
2008 – 2009: Kyushu Lutheran College, 人文学部, 教授
2007: Kyushu Lutheran College, 人文学部, 准教授
Review Section/Research Field
Principal Investigator
Thermal engineering / Basic Section 19020:Thermal engineering-related
Keywords
Principal Investigator
状態方程式 / 密度 / 飽和蒸気圧 / 冷媒 / 地球温暖化 / 気液平衡 / 熱物性データベース / 水素結合 / 混合冷媒 / 低GWP … More / HFC / 熱物性 / 超低温 / 熱力学的性質 / 音速 / R134a / R1234ze(E) / R1234yf / R32 / 臨界定数 / CO2 / 熱力学 / 熱工学 / 臨界点 / 炭化水素 / 数値計算 / データベース / HFC冷媒 / 自然冷媒 Less
  • Research Projects

    (6 results)
  • Research Products

    (104 results)
  • Co-Researchers

    (5 People)
  •  An Extended Generalized Hydrogen-bonding Model: Applications to Refrigerants for Refrigeration at Ultra-low temperaturesPrincipal Investigator

    • Principal Investigator
      赤坂 亮
    • Project Period (FY)
      2023 – 2025
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 19020:Thermal engineering-related
    • Research Institution
      Kyushu Sangyo University
  •  Fundamental Equations of State for Strongly Associated Fluids Based on a Generalized Hydrogen-bonding Model: Application to ISO International Standard FormulationsPrincipal Investigator

    • Principal Investigator
      Akasaka Ryo
    • Project Period (FY)
      2020 – 2023
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 19020:Thermal engineering-related
    • Research Institution
      Kyushu Sangyo University
  •  Development of Equations of State for Next-generation Refrigerants Using a Multi-fluid OptimizationPrincipal Investigator

    • Principal Investigator
      Akasaka Ryo
    • Project Period (FY)
      2015 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Thermal engineering
    • Research Institution
      Kyushu Sangyo University
  •  New thermodynamic property models for low-GWP refrigerant mixtures containing R32 as a main constituentPrincipal Investigator

    • Principal Investigator
      AKASAKA RYO
    • Project Period (FY)
      2012 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Thermal engineering
    • Research Institution
      Kyushu Sangyo University
  •  Reliable Equations of State for Mixtures Containing CO2 and Its Application to a Network Database System for Thermophysical Properties DataPrincipal Investigator

    • Principal Investigator
      AKASAKA Ryo
    • Project Period (FY)
      2009 – 2011
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Thermal engineering
    • Research Institution
      Kyushu Sangyo University
      Kyushu Lutheran College
  •  Development of a Thermophysical Property Database for Energy Utilization in the Next GenerationPrincipal Investigator

    • Principal Investigator
      AKASAKA Ryo
    • Project Period (FY)
      2007 – 2008
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Thermal engineering
    • Research Institution
      Kyushu Lutheran College

All 2023 2022 2021 2020 2018 2017 2016 2015 2013 2012 2011 2010 2009 2008 2007 Other

All Journal Article Presentation Book

  • [Book] JSBAE Thermodynamic Table Vol.4 HFO-1234ze(E)2011

    • Author(s)
      R.Akasaka, Y.Kayukawa, K.Tanaka, Y.Higashi
    • Total Pages
      36
    • Publisher
      日本冷凍空調学会
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Book] JSRAE Thermodynamic Table2011

    • Author(s)
      R. Akasaka, Y. Kayukawa, K. Tanaka, Y. Higashi
    • Publisher
      日本冷凍空調学会
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Book] JSRAE Thermodynamic Table2010

    • Author(s)
      R. Akasaka, Y. Kayukawa, K. Tanaka, Y. Higashi
    • Publisher
      日本冷凍空調学会
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Book] JSRAE Thermodynamic Table Vol.3 HFO-1234yf2010

    • Author(s)
      R.Akasaka, Y.Kayukawa, K.Tanaka, Y.Higashi
    • Total Pages
      35
    • Publisher
      日本冷凍空調学会
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Application of Extended Corresponding States (ECS) and Residual Entropy Scaling (RES) Techniques for Modeling Viscosity of cis-1,3,3,3-Tetrafluoropropene (R1234ze(Z)) with Revised Experimental Data2023

    • Author(s)
      Morshed Monjur、Tuhin Atiqur R.、Akasaka Ryo、Miyara Akio
    • Journal Title

      International Journal of Thermophysics

      Volume: 44 Issue: 8

    • DOI

      10.1007/s10765-023-03231-0

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] A Helmholtz Energy Equation of State for cis-1-Chloro-2,3,3,3-tetrafluoro-1-propene [R-1224yd(Z)]2023

    • Author(s)
      Akasaka Ryo、Lemmon Eric W.
    • Journal Title

      International Journal of Thermophysics

      Volume: 44 Issue: 11

    • DOI

      10.1007/s10765-023-03266-3

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Thermodynamic properties of cis-1-chloro-2,3,3,3-tetrafluoro-1-propene [R-1224yd(Z)]: Experimental measurements of the density and speed of sound and modeling with the Patel?Teja equation of state2023

    • Author(s)
      Lago S.、Albo P.A. Giuliano、Akasaka R.、Romeo R.
    • Journal Title

      International Journal of Refrigeration

      Volume: 155 Pages: 154-162

    • DOI

      10.1016/j.ijrefrig.2023.09.008

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] A Helmholtz Energy Equation of State for trans-1,1,1,4,4,4-Hexafluoro-2-butene [R-1336mzz(E)] and an Auxiliary Extended Corresponding States Model for the Transport Properties2023

    • Author(s)
      Akasaka Ryo、Huber Marcia L.、Simoni Luke D.、Lemmon Eric W.
    • Journal Title

      International Journal of Thermophysics

      Volume: 44(4) Issue: 4 Pages: 50-50

    • DOI

      10.1007/s10765-022-03143-5

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] An International Standard Formulation for <i>trans</i>-1-Chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)] Covering Temperatures from the Triple-Point Temperature to 450?K and Pressures up to 100 MPa2022

    • Author(s)
      Akasaka Ryo、Lemmon Eric W.
    • Journal Title

      Journal of Physical and Chemical Reference Data

      Volume: 51(2) Issue: 2 Pages: 023101-023101

    • DOI

      10.1063/5.0083026

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and Propane (R290) Mixtures: (p, ρ, T) Behavior, Saturated Liquid and Vapor Densities, Critical Parameters, and a Mixture Model2022

    • Author(s)
      Ryo Akasaka, Sho Fukuda, Kozue Miyane, Yukihiro Higashi
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 67 Issue: 2 Pages: 346-357

    • DOI

      10.1021/acs.jced.1c00890

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] An International Standard Formulation for 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) Covering Temperatures from the Triple Point Temperature to 410?K and Pressures Up to 100?MPa2022

    • Author(s)
      Lemmon Eric W.、Akasaka Ryo
    • Journal Title

      International Journal of Thermophysics

      Volume: 43(8) Issue: 8 Pages: 119-119

    • DOI

      10.1007/s10765-022-03015-y

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Vapor Pressure, (p, ρ, T) Behavior, Saturated Densities, and Surface Tension of trans-1,2-Dichloroethene [R1130(E)]2022

    • Author(s)
      Tanaka Katsuyuki、Kondou Chieko、Fukuda Sho、Akasaka Ryo
    • Journal Title

      International Journal of Thermophysics

      Volume: 43(3) Issue: 5 Pages: 69-69

    • DOI

      10.1007/s10765-022-02986-2

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Vapor-Phase (p, ρ, T) Behavior of Difluoromethane (R32) + Trifluoroiodomethane (R13I1), Pentafluoroethane (R125) + R13I1, and R32 + R125 + R13I1 Mixtures: Experimental Measurements Based on the Isochoric Method and Verification with a Generalized Virial Equation of State2022

    • Author(s)
      Akasaka Ryo、Kayukawa Yohei、Higashi Yukihiro
    • Journal Title

      International Journal of Thermophysics

      Volume: 43(10) Issue: 10 Pages: 159-159

    • DOI

      10.1007/s10765-022-03080-3

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Universal parameters of the extended corresponding states (ECS) model for hydrofluoroolefin refrigerants2021

    • Author(s)
      Ryoma Teraishi, Yohei Kayukawa, Ryo Akasaka, Kiyoshi Saito
    • Journal Title

      International Journal of Refrigeration

      Volume: 131 Pages: 33-40

    • DOI

      10.1016/j.ijrefrig.2021.08.013

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Experimental determination of the critical parameters for trans-1-chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)] and cis-1-chloro-2,3,3,3-tetrafluoroprop-1-ene [R1224yd(Z)]2021

    • Author(s)
      Katsuyuki Tanaka, Ryo Akasaka
    • Journal Title

      International Journal of Refrigeration

      Volume: 131 Pages: 61-67

    • DOI

      10.1016/j.ijrefrig.2021.07.010

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Journal Article] Measurements of PvT Properties, Vapor Pressures, Saturated Densities and Critical Parameters for trans-1,1,1,4,4,4-Hexafluoro-2-butene (R1336mzz(E))2021

    • Author(s)
      Naoya Sakoda, Yukihiro Higashi, Ryo Akasaka
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 66 Issue: 1 Pages: 734-739

    • DOI

      10.1021/acs.jced.0c00848

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K04338, KAKENHI-PROJECT-18K03982
  • [Journal Article] Thermodynamic Properties of Trifluoroethene (R1123): (p, ρ, T) Behavior and Fundamental Equation of State2020

    • Author(s)
      Ryo Akasaka, Yukihiro Higashi, Naoya Sakoda, Sho. Fukuda, Eric W. Lemmon
    • Journal Title

      International Journal of Refrigeration

      Volume: 119 Pages: 457-467

    • DOI

      10.1016/j.ijrefrig.2020.07.011

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338, KAKENHI-PROJECT-18K03982
  • [Journal Article] Measurements of Saturation Pressures for Trifluoroethene (R1123) and 3,3,3-trifluoropropene (R1243zf)2018

    • Author(s)
      Y. Higashi, N. Sakoda, Md. Amirul Islam, Y. Takata, S. Koyama, R. Akasaka
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 63(2) Issue: 2 Pages: 417-421

    • DOI

      10.1021/acs.jced.7b00818

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849, KAKENHI-PROJECT-18K03982
  • [Journal Article] The precise measurement of vapor-liquid equilibrium properties of the CO2/isopentane binary mixture, and fitted parameters for a Helmholtz energy mixture model2017

    • Author(s)
      H. Miyamoto, Y. Shoji, R. Akasaka, E. W. Lemmon
    • Journal Title

      International Journal of Thermophysics

      Volume: 38 Issue: 10 Pages: 157-166

    • DOI

      10.1007/s10765-017-2283-x

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05837, KAKENHI-PROJECT-15K05849
  • [Journal Article] Measurements of the Critical Parameters for Cis-1,1,1,4,4,4-hexafluoro-butene (HFO-1336mzz(Z))2017

    • Author(s)
      K. Tanaka, R. Akasaka, E. Sakaue, J. Ishikawa, K. Kontomaris
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 62(3) Issue: 3 Pages: 1135-1138

    • DOI

      10.1021/acs.jced.6b00990

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Journal Article] Thermodynamic Properties of Cis-1,1,1,4,4,4-hexafluoro-butene (HFO-1336mzz(Z)): Measurements of the pρT Property and Determinations of Vapor Pressures, Saturated Liquid and Vapor Densities, and Critical Parameters2016

    • Author(s)
      K. Tanaka, R. Akasaka, E. Sakaue, J. Ishikawa, K. Kontomaris
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 61(7) Issue: 7 Pages: 2467-2473

    • DOI

      10.1021/acs.jced.6b00169

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Journal Article] Recent Trends in the Development of Helmholtz Energy Equations of State and Their Application to 3,3,3-Trifluoroprop-1-ene (R-1243zf)2016

    • Author(s)
      R. Akasaka
    • Journal Title

      Science and Technology for the Built Environment

      Volume: 22(8) Issue: 8 Pages: 1136-1144

    • DOI

      10.1080/23744731.2016.1208000

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Journal Article] 2成分系混合作動流体R245fa+R134a系の熱力学的性質の測定 -第2報:PρTx性質および臨界圧力の測定-2016

    • Author(s)
      東之弘,赤坂亮
    • Journal Title

      日本冷凍空調学会論文集

      Volume: 33(1) Pages: 81-91

    • NAID

      130005519721

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Journal Article] Measurements of PρT Properties, Vapor Pressures, Saturated Densities and Critical Parameters for R 1234ze(Z) and R 245fa2015

    • Author(s)
      Yukihiro Higashi, Shugo Hayasaka, Chihiro Shirai, and Ryo Akasaka
    • Journal Title

      International Journal of Refrigeration

      Volume: 52 Pages: 100-108

    • DOI

      10.1016/j.ijrefrig.2014.12.007

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24560240, KAKENHI-PROJECT-24560243
  • [Journal Article] Measurements of Saturated Densities and Critical Parameters for the Binary Mixture of 2,3,3,3-Tetrafluoropropene (R-1234yf) + Difluoromethane (R-32)2013

    • Author(s)
      R. Akasaka, K. Tanaka, Y. Higashi
    • Journal Title

      International Journal of Refrigeration

      Volume: 36 Pages: 1341-1346

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Journal Article] Thermodynamic Property Models for the Difluoromethane (R-32) + Trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and Difluoromethane + 2,3,3,3-Tetrafluoropropene (R-1234yf) Mixtures2013

    • Author(s)
      R. Akasaka
    • Journal Title

      Fluid Phase Equilibria

      Volume: 358 Pages: 98-104

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Journal Article] New Fundamental Equations of State with a Common Functional Form for 2,3,3,3-Tetrafluoropropene (R-1234yf) and Trans-1,3,3,3-Tetrafluoropr opene (R-1234ze(E))2011

    • Author(s)
      R.Akasaka
    • Journal Title

      International Journal of Thermophysics

      Volume: 32(6) Issue: 6 Pages: 1125-1147

    • DOI

      10.1007/s10765-011-0992-0

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Vapor-Liquid Equilibrium Modeling for Mixtures of HFC-32+Isobutane and HFC-32+HFO-1234ze(E)2011

    • Author(s)
      R. Akasaka
    • Journal Title

      International Journal of Air-Conditioning and Refrigeration

      Volume: 19(2) Pages: 93-97

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] New Fundamental Equationsof State with a Common Functional Form for 2, 3, 3, 3-Tetrafluoropropene(R-1234yf) and Trans-1, 3, 3, 3-Tetrafluoropropene(R-1234ze(E))2011

    • Author(s)
      R. Akasaka
    • Journal Title

      International Journal of Thermophysics

      Volume: 32(6) Pages: 1125-1147

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] HFO-1234ze(E)+HFC-32混合冷媒の密度および定圧比熱の測定2011

    • Author(s)
      田中勝之, 赤坂亮, 東之弘
    • Journal Title

      日本冷凍空調学会論文集

      Volume: 28(4) Pages: 427-434

    • NAID

      10030466271

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] An Application of the Extended Corresponding States Model to Thermodynamic Property Calculations for Trans-1, 3, 3, 3-Tetrafluoropropene(HFO-1234ze(E))2010

    • Author(s)
      R. Akasaka
    • Journal Title

      International Journal of Refrigeration

      Volume: 33(5) Pages: 907-914

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Measurements of the Isobaric Specific Heat Capacity and Density for HFO-1234yf in the Liquid State2010

    • Author(s)
      K. Tanaka, Y. Higashi, R. Akasaka
    • Journal Title

      Journal of Chemical Engineering Data

      Volume: 55(2) Pages: 901-903

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] An Application of the Extended Corresponding States Model to Thermodynamic Property Calculations for Trans-1,3,3,3-Tetrafluoropropene (HFO-1234ze(E))2010

    • Author(s)
      R.Akasaka
    • Journal Title

      International Journal of Refrigeration

      Volume: 33(5) Pages: 907-914

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Viscosity Correlation for 2, 3, 3, 3-Tetrafluoropropene(HFO-1234yf) Based on the Extended Corresponding States Model2010

    • Author(s)
      R. Akasaka
    • Journal Title

      Journal of Thermal Science and Technology

      Volume: 5(2) Pages: 200-205

    • NAID

      130000340329

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Thermodynamic Property Modeling for 2, 3, 3, 3-Tetrafluoropropene(HFO-1234yf)2010

    • Author(s)
      R. Akasaka, K. Tanaka, Y. Higashi
    • Journal Title

      International Journal of Refrigeration

      Volume: 33(1) Pages: 52-60

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Viscosity Correlation for 2,3,3,3-Tetrafluoropropene (HFO-1234yf) Based on the Extended Corresponding States Model2010

    • Author(s)
      R.Akasaka
    • Journal Title

      Journal of Thermal Science and Technology

      Volume: 5(2) Pages: 200-205

    • NAID

      130000340329

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Measurements of the Isobaric Specific Heat Capacity and Density for HFO-1234yf in the Liquid State2010

    • Author(s)
      K.Tanaka, Y.Higashi, R.Akasaka
    • Journal Title

      Journal of Chemical and Engineering Data

      Volume: 55(2) Pages: 901-903

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] Thermodynamic Property Modeling for 2,3,3,3-Tetrafluoropropene (HFO-1234yf)2010

    • Author(s)
      Ryo Akasaka, Katsuyuki Tanaka, Yukihiro Higashi
    • Journal Title

      International Journal of Refrigeration 33

      Pages: 52-60

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [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

      Volume: 26(1) Pages: 1-15

    • NAID

      10024962485

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Measurements of the Vapor-Liquid Equilibrium for the CO2 + R290 Mixture2009

    • 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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] R. Akasaka, A Rigorous Calculation of the Critical Point from the Fundamental Equation of State for the Water + Ammonia Mixture2009

    • Author(s)
      R. Akasaka
    • Journal Title

      International Journal of Refrigeration 32

      Pages: 95-101

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Applications of the Simple Multi-fluid Model to Correlations of the Vapor-Liquid Equilibrium of Refrigerant Mixtures Containing Carbon Dioxide2009

    • Author(s)
      Ryo Akasaka
    • Journal Title

      Journal of Thermal Science and Technology 4

      Pages: 159-168

    • NAID

      130000134259

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Applications of the Simple Multi-fluid Model to Correlations of the Vapor-Liquid Equilibrium of Refrigerant Mixtures Containing Carbon Dioxide2009

    • Author(s)
      R. Akasaka
    • Journal Title

      Journal of Thermal Science and Technology

      Volume: 4(1) Pages: 159-168

    • NAID

      130000134259

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Journal Article] A Rigorous Calculation of the Critical Point from the Fundamental Equation of State for the Water + Ammonia Mixture2009

    • Author(s)
      Ryo Akasaka
    • Journal Title

      International Journal of Refrigeration 32

      Pages: 95-101

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] A Reliable and Useful Method to Determine the Saturation State from Helmholtz Energy Equations of State2008

    • Author(s)
      Ryo Akasaka
    • Journal Title

      Journal of Thermal Science and Technology 3

      Pages: 442-451

    • NAID

      130000098816

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] A Reliable and Useful Method to Determine the Saturation State from Helmholtz Energy Equations of State2008

    • Author(s)
      R. Akasaka
    • Journal Title

      Journal of Thermal Science and Technology 3(3)

      Pages: 442-451

    • NAID

      130000098816

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] An Assessment of Thermodynamic Models for HFC Refrigerant Mixtures Through the Critical Point Calculation2008

    • Author(s)
      Ryo Akasaka
    • Journal Title

      International Journal of Thermophysics 29

      Pages: 1328-1341

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] An Assessment of Thermodynamic Models for HFC Refrigerant Mixtures through the Critical Point Calculation2008

    • Author(s)
      R. Akasaka
    • Journal Title

      International Journal of Thermophysics 29(4)

      Pages: 1328-1341

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Calculation of the critical point for mixtures using mixture models based on Helmholtz energye equations of state2008

    • Author(s)
      Ryo Akasaka
    • Journal Title

      Fluid Phase Equilibria 263

      Pages: 102-108

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Vapor-liquid Equilibrium Measurements and Correlations for the Binary Mixture of Difluoromethane + Isobutane and the Ternary Mixture of Propane + Isobutane + Difluoromethane2007

    • Author(s)
      R. Akasaka,Y. Higashi, K. Tanaka, Y. Kayukawa, and K. Fujii
    • Journal Title

      Fluid Phase Equilibria 261

      Pages: 286-291

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Calculation of the Critical Point for Mixtures using Mixture Models based on Helmholtz Energy Equations of State2007

    • Author(s)
      R. Akasaka
    • Journal Title

      Fluid Phase Equilibria 263

      Pages: 102-108

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Journal Article] Vapor-liquid equilibrium measurements and correlations for the binary mixture of difluoromethane+isobutane and the ternary mixture of propane+isobutane+difluoromethane2007

    • Author(s)
      Ryo Akasaka
    • Journal Title

      Fluid Phase Equilibria 261

      Pages: 286-291

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Presentation] 超低温・低GWP冷媒R-469Aの熱物性評価結果と適用事例の紹介2023

    • Author(s)
      下坂幸, 楠本遼太, 赤坂亮
    • Organizer
      2023年度日本冷凍空調学会年次大会
    • Data Source
      KAKENHI-PROJECT-23K03722
  • [Presentation] A Thermodynamic Property Model for R1234yf and Propane Mixtures2023

    • Author(s)
      Ryo Akasaka
    • Organizer
      The 26th IIR International Congress of Refrigeration
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] 地球温暖化防止に向けた次世代冷媒への期待と基盤技術開発2023

    • Author(s)
      赤坂亮
    • Organizer
      日本技術士会経営管理チーム講演会
    • Invited
    • Data Source
      KAKENHI-PROJECT-23K03722
  • [Presentation] A Fundamental Equation of State for trans-1,1,1,4,4,4-Hexafluoro-2-butene [R1336mzz(E)]2022

    • Author(s)
      Ryo Akasaka, Luke D. Simoni, Eric. W. Lemmon
    • Organizer
      19th International Refrigeration and Air Conditioning Conference at Purdue
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] Current Status on the Development of Fundamental Equations of State for Low GWP Refrigerants2022

    • Author(s)
      Ryo Akasaka
    • Organizer
      Asian Conference on Refrigeration and Air-conditioning 2022
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] Application of the Universal ECS model to Property Calculations for trans-1,2-Dichloroethene [R1130(E)]2022

    • Author(s)
      Sho Fukuda, Chieko Kondou, Ryo Akasaka, Katsuyuki Tanaka
    • Organizer
      The 13th Asian Thermophysical Properties Conference
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] 冷媒熱物性に関するISO改定について2021

    • Author(s)
      赤坂亮
    • Organizer
      第54回空気調和・冷凍連合講演会
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] A New Fundamental Equation of State for cis-1-Chloro-2,3,3,3-tetrafluoropropene [R1224yd(Z)]2021

    • Author(s)
      Ryo Akasaka, Eric W. Lemmon
    • Organizer
      21th Symposium on Thermophysical Properties
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] A New ISO 17584 Standard Equation of State for 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and its Modification for trans-1,2-Difluoroethene [R1132(E)]2021

    • Author(s)
      Ryo Akasaka, Eric W. Lemmon
    • Organizer
      2nd IIR Conference on HFOs and Low GWP blends
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] A New Fundamental Equation of State for R1123 and its Applications to Mixture Models for Mixtures with R32 and R1234yf2021

    • Author(s)
      Ryo Akasaka, Eric W. Lemmon
    • Organizer
      The 6th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] New ISO 17584 Standard Formulations for cis-1,1,1,4,4,4-Hexafluorobutene [R1336mzz(Z)] and trans-1-Chloro-3,3,3-trifluoropropene [R1233zd(E)]2020

    • Author(s)
      Ryo Akasaka, Eric W. Lemmon
    • Organizer
      IIR Rankine 2020 Conference - Advances in Cooling, Heating and Power Generation
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] REFPROPはこうして作られる2020

    • Author(s)
      赤坂亮
    • Organizer
      2020年度日本冷凍空調学会年次大会
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K04338
  • [Presentation] A Helmholtz Energy Equation of State for Cis-1-chloro-2,3,3,3-tetrafluoropropene (R-1224yd(Z))2017

    • Author(s)
      R. Akasaka, M. Fukushima, E. W. Lemmon
    • Organizer
      21th European Conference on Thermophysical Properties
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] R-1234ze(Z)の新しいHelmholtz 型状態方程式2017

    • Author(s)
      赤坂亮
    • Organizer
      2017年度日本冷凍空調学会年次大会
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] A Thermodynamic Property Model for Difluoromethane (R-32) and Trifluoroethylene (R-1123) Mixtures2016

    • Author(s)
      R. Akasaka
    • Organizer
      11th Asian Thermophysical Properties Conference
    • Place of Presentation
      Yokohama
    • Year and Date
      2016-10-02
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] A Helmholtz Energy Equation of State for Trifluoroethylene (R-1123)2016

    • Author(s)
      R. Akasaka, M. Fukushima, E. W. Lemmon
    • Organizer
      16th International Refrigeration and Air Conditioning Conference at Purdue
    • Place of Presentation
      West Lafayette
    • Year and Date
      2016-07-11
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] A Helmholtz Energy Equation of State for Cis-1,1,1,4,4,4-hexafluoro-2-butene (R-1336mzz(Z))2016

    • Author(s)
      R. Akasaka, E. W. Lemmon
    • Organizer
      8th Asian Conference on Refrigeration and Air Conditioning
    • Place of Presentation
      Taipei
    • Year and Date
      2016-05-15
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] A Preliminary Equation of State for 3,3,3-Trifluoroprop-1-ene (R-1243zf)2015

    • Author(s)
      R. Akasaka, Y. Higashi, A. Miyara, J. S. Brown, S. Koyama
    • Organizer
      19th Symposium on Thermophysical Properties
    • Place of Presentation
      ボルダー(米国)
    • Year and Date
      2015-06-21
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] R-1243zf の熱力学的性質 -低 GWP 冷媒の状態方程式開発における国際協調-2015

    • Author(s)
      赤坂亮
    • Organizer
      2015年度日本冷凍空調学会年次大会
    • Place of Presentation
      早稲田大学(東京都)
    • Year and Date
      2015-10-20
    • Data Source
      KAKENHI-PROJECT-15K05849
  • [Presentation] R-32/1234ze(E)混合冷媒の熱力学モデル2013

    • Author(s)
      赤坂亮
    • Organizer
      2013年度日本冷凍空調学会年次大会
    • Place of Presentation
      東京
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Presentation] 臨界定数の再現性を考慮した低GWP混合冷媒の熱力学モデル2013

    • Author(s)
      赤坂亮
    • Organizer
      熱工学コンファレンス2013
    • Place of Presentation
      弘前
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Presentation] R32成分を含む2 成分系低環境負荷混合冷媒に関する気液平衡性質の測定2012

    • Author(s)
      粥川洋平, 赤坂亮
    • Organizer
      第33回日本熱物性シンポジウム
    • Place of Presentation
      大阪
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Presentation] A Predictive Model for the Thermodynamic Properties of Mixtures2012

    • Author(s)
      R. Akasaka, Y. Higashi
    • Organizer
      18th Symposium on Thermophysical Properties
    • Place of Presentation
      Boulder, CO, USA
    • Data Source
      KAKENHI-PROJECT-24560243
  • [Presentation] Fundamental Equations of State with an Identical Functional Form for HFO-1234yf and HFO-1234ze(E)2011

    • Author(s)
      R.Akasaka
    • Organizer
      The 23rd IIR International Congress of Refrigeration
    • Place of Presentation
      プラハ(チェコ)
    • Year and Date
      2011-08-24
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] HFE-143mのHelmholtz型状態方程式2011

    • Author(s)
      赤坂亮, 粥川洋平
    • Organizer
      2011年度日本冷凍空調学会年次大会
    • Place of Presentation
      東京
    • Year and Date
      2011-09-14
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Fundamental Equations ofState with an Identical Functional Form for HFO-1234yf and HFO-1234ze(E)2011

    • Author(s)
      R. Akasaka
    • Organizer
      The 23rd IIR International Congress of Refrigeration
    • Place of Presentation
      Prague, Czech
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] フッ化オレフィン系冷媒の熱物性に関する研究動向2011

    • Author(s)
      赤坂亮
    • Organizer
      日本冷凍空調学会西日本地区事業推進委員会第12回西日本地区技術交流会
    • Place of Presentation
      福岡(招待講演)
    • Year and Date
      2011-10-07
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Fundamental Equation of Statefor 2, 3, 3, 3-Tetrafluoropropene(HFO-1234yf)2010

    • Author(s)
      R. Akasaka, Y. Kayukawa, Y. Kano, K. Fujii
    • Organizer
      2010 International Symposium on Next-generation Air Conditioning and Refrigeration Technology
    • Place of Presentation
      Tokyo, Japan
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] An Application of the Extended Corresponding States Model to Thermodynamic Property Calculations for Trans-1, 3, 3, 3-tetrafluoropropen(HFO-1234ze(E))2010

    • Author(s)
      R. Akasaka, T. Tanaka, Y. Higashi
    • Organizer
      Sustainable Refrigeration and Heat Pump Technology Conference
    • Place of Presentation
      Stockholm, Sweden
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] An Application of the Extended Corresponding States Model to Thermo dynamic Property Calculations for Trans-1,3,3,3-tetrafluoropropen (HFO - 1234ze(E))2010

    • Author(s)
      R.Akasaka, T.Tanaka, Y.Higashi
    • Organizer
      Sustainable Refrigeration and Heat Pump Technology Conference
    • Place of Presentation
      ストックホルム(スウェーデン)
    • Year and Date
      2010-06-14
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Thermodynamic Property Model for the Mixtures of Difluoromethane (HFC-32) + Isobutane and Difluoromethane + Trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E))2010

    • Author(s)
      R.Akasaka
    • Organizer
      International Refrigeration and Air Conditioning Conference at Purdue
    • Place of Presentation
      ウエストラファイエット(アメリカ)
    • Year and Date
      2010-07-13
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Thermodynamic Property Model for the Mixtures of Difluoromethane(HFC-32)+Isobutane and Difluoromethane+Trans-1, 3, 3, 3-tetrafluoropropene(HFO-1234ze(E))2010

    • Author(s)
      R. Akasaka
    • Organizer
      International Refrigeration and Air Conditioning Conference at Purdue
    • Place of Presentation
      West Lafayette, IN, USA
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Thermodynamic Property Measurements for HFO 1234yf and Its Binary Mixtures2010

    • Author(s)
      Y. Kayukawa, K. Fujii, R. Akasaka
    • Organizer
      2010 International Symposium on Next-generation Air Conditioning and Refrigeration Technology
    • Place of Presentation
      Tokyo, Japan
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Simple Multi-fluid Model for Correlations of the Vapor-Liquid Equilibrium of Refrigerant Mixtures Containing Carbon Dioxide2009

    • Author(s)
      R. Akasaka
    • Organizer
      Thermodynamics 2009
    • Place of Presentation
      London, UK
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Thermodynamic Properties for Low GWPRefrigerant HFO-1234yf2009

    • Author(s)
      K. Tanaka, Y. Higashi, R. Akasaka
    • Organizer
      InternationalWorkshop on Environment andEngineering 2009(IWEE 2009)
    • Place of Presentation
      Yokohama, Japan
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Vapor-Liquid EquilibriumModeling for Carbon Dioxide+Difluoromethane(R-32) and CarbonDioxide+Pentafluoroethane(R-125) Mixtures Using Helmholtz EnergyEquations of State2009

    • Author(s)
      R. Akasaka
    • Organizer
      AIChE AnnualMeeting 2009
    • Place of Presentation
      Nashville, TN, USA
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] CO2系混合冷媒の気液平衡の相関-Helmholtz型状態方程式に基づいた多流体モデルの適用-2009

    • Author(s)
      赤坂亮
    • Organizer
      第30回 日本熱物性シンポジウム
    • Place of Presentation
      米沢
    • Year and Date
      2009-10-29
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] A Practical Equation of State for 2, 3, 3, 3-Tetrafluoropropene(HFO-1234yf) to Calculate Saturation Properties2009

    • Author(s)
      R. Akasaka, K. Tanaka, Y. Higashi
    • Organizer
      3rd IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
    • Place of Presentation
      Boulder, CO, USA
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] Vapor-Liquid Equilibrium Modeling for Carbon Dioxide + Difluoromethane (R-32) and Carbon Dioxide + Pentafluoroethane (R-125) Mixtures Using Helmholtz Energy Equations of State2009

    • Author(s)
      Ryo Akasaka
    • Organizer
      AIChE Annual Meeting 2009
    • Place of Presentation
      Nashville, TN
    • Year and Date
      2009-11-09
    • Data Source
      KAKENHI-PROJECT-21560229
  • [Presentation] PROPATH -A Program Package for Thermophysical Properties of Fluids2008

    • 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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Presentation] PROPATH-A Program Package for Thermophysical Properties of Fluids2008

    • 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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Presentation] Modeling of the Vapor-Liquid Equilibrium of the Carbon Dioxide + Dimethyl Ether Mixture by Three Different Approaches2008

    • Author(s)
      R. Akasaka
    • Organizer
      AIChE Annual Meeting
    • Place of Presentation
      Philadelphia, PA, USA
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Presentation] Vapor-liquid equilibrium measurements and correlations for binary and ternary mixtures of R290,R600a,and R32 in the temperature range from 260K to 330K2007

    • 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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [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
    • Data Source
      KAKENHI-PROJECT-19560218
  • [Presentation] A Thermodynamic Property Model for the R-134a/245fa Mixtures

    • Author(s)
      R. Akasaka, Y. Higashi
    • Organizer
      15th International Refrigeration and Air Conditioning Conference at Purdue
    • Place of Presentation
      West Lafayette, IN, USA
    • Year and Date
      2014-07-14 – 2014-07-17
    • Data Source
      KAKENHI-PROJECT-24560243
  • 1.  KAYUKAWA Yohei (50371034)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 3 results
  • 2.  東 之弘 (90183095)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 8 results
  • 3.  McLinden Mark O.
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 4.  Lemmon Eric W.
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 5.  宮本 泰行
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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