Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter

Yohei Kayukawa, Takeru Kimura, Yuya Kano, Yoshitaka Fujita, Kiyoshi Saito

    研究成果: Conference contribution

    2 引用 (Scopus)

    抄録

    Thermodynamic cycles involving a phase transition at high temperatures such as organic Rankine cycle (ORC) or high-temperature heat pump is a key technology to realize more effective use of wasted heats. In order to achieve these technologies, a new working fluids which fit an elevated temperature range are demanded. Among a number of candidate, some hydrofluoroolefins (HFOs) were chosen and studied in the present work. A newly developed PVT property measurement system was used to measure PVT properties and vapor pressures of the test fluids. A commercially available magnetic levitation densimeter by Rubotherm GmbH was employed as a density measurement device. Wide temperature and pressure range (up to 423 K and 20 MPa) was achieved by installing originally designed cryostat system. To keep good measurement performance even under hightemperatures or high-pressures, a silicon single crystal sinker was prepared. The density and the mass of the sinker was calibrated by a state-of-the-art calibration equipment. Density measurement uncertainty is not greater than (0.009 to 0.013) %, whereas temperature and pressure measurement uncertainties are 0.018 K and 2.6 kPa, respectively.

    元の言語English
    ホスト出版物のタイトル24th IIR International Congress of Refrigeration, ICR 2015
    出版者International Institute of Refrigeration
    ページ491-496
    ページ数6
    ISBN(電子版)9782362150128
    DOI
    出版物ステータスPublished - 2015
    イベント24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
    継続期間: 2015 8 162015 8 22

    Other

    Other24th IIR International Congress of Refrigeration, ICR 2015
    Japan
    Yokohama
    期間15/8/1615/8/22

    Fingerprint

    Magnetic levitation
    densimeters
    levitation
    Thermodynamic properties
    thermodynamic properties
    Rankine cycle
    thermodynamic cycles
    heat pumps
    working fluids
    cryostats
    pressure measurement
    vapor pressure
    installing
    temperature measurement
    heat
    Temperature
    Cryostats
    Fluids
    temperature
    fluids

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Condensed Matter Physics

    これを引用

    Kayukawa, Y., Kimura, T., Kano, Y., Fujita, Y., & Saito, K. (2015). Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter. : 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 491-496). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0752

    Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter. / Kayukawa, Yohei; Kimura, Takeru; Kano, Yuya; Fujita, Yoshitaka; Saito, Kiyoshi.

    24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. p. 491-496.

    研究成果: Conference contribution

    Kayukawa, Y, Kimura, T, Kano, Y, Fujita, Y & Saito, K 2015, Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter. : 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, pp. 491-496, 24th IIR International Congress of Refrigeration, ICR 2015, Yokohama, Japan, 15/8/16. https://doi.org/10.18462/iir.icr.2015.0752
    Kayukawa Y, Kimura T, Kano Y, Fujita Y, Saito K. Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter. : 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration. 2015. p. 491-496 https://doi.org/10.18462/iir.icr.2015.0752
    Kayukawa, Yohei ; Kimura, Takeru ; Kano, Yuya ; Fujita, Yoshitaka ; Saito, Kiyoshi. / Thermodynamic property measurements for hydrofluorobutenes by a magnetic levitation densimeter. 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. pp. 491-496
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