Critical Parameters and Critical-Region (p, ρ, T) Data of trans-1,1,1,3-Tetrafluorobut-2-ene [HFO-1354mzy(E)]

Takeru Kimura, Yohei Kayukawa, Hiroyuki Miyamoto, Kiyoshi Saito

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    This study presents the experimental measurement of the pρT properties and critical parameters of a low GWP type refrigerant, trans-1,1,1,3-Tetrafluorobut-2-ene (HFO-1354mzy(E)). The sample purity of the substance was 99 area %. pρT property measurements and visual observations of the meniscus of HFO-1354mzy(E) were carried out using a metal-bellows volumometer with an optical cell. The critical temperature was determined by observation of the critical opalescence. The critical pressure and critical density were determined as the inflection point of the isothermal pρT property data at the critical temperature. For more precise clarification of the thermodynamic surface in the vicinity of the critical point, additional pρT property measurements were carried out on three isotherms in the supercritical region. The expanded uncertainties (k= 2) in the temperature, pressure, and density measurements were estimated to be less than 3 mK, 1.2 kPa, and 0.32 kg · m - 3, respectively. The expanded uncertainties of the critical parameters were estimated to be less than 13 mK, 1.4 kPa, and 2.3 kg · m - 3, respectively. These values are the first reported for HFO-1354mzy(E) and are necessary for the development of its equation of state in the near future.

    Original languageEnglish
    Article number122
    JournalInternational Journal of Thermophysics
    Volume38
    Issue number8
    DOIs
    Publication statusPublished - 2017 Aug 1

    Fingerprint

    critical temperature
    opalescence
    bellows
    visual observation
    inflection points
    critical pressure
    refrigerants
    menisci
    pressure measurement
    temperature measurement
    critical point
    isotherms
    purity
    equations of state
    thermodynamics
    cells
    metals

    Keywords

    • Critical opalescence
    • Critical parameter
    • HFO-1354mzy(E)
    • pρT property measurement

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Critical Parameters and Critical-Region (p, ρ, T) Data of trans-1,1,1,3-Tetrafluorobut-2-ene [HFO-1354mzy(E)]. / Kimura, Takeru; Kayukawa, Yohei; Miyamoto, Hiroyuki; Saito, Kiyoshi.

    In: International Journal of Thermophysics, Vol. 38, No. 8, 122, 01.08.2017.

    Research output: Contribution to journalArticle

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