Study on isochoric specific heat capacity of liquid R-410A and HFE-347pcf2

A. Matsuguchi, N. Kagawa, S. Koyama

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    7 Citations (Scopus)


    The isochoric heat capacity (c ν) of R-410A [a mixture of 49.81 mass% difluoromethane (HFC-32) + 50.19 mass% pentafluoroethane (HFC-125)] and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethylether (HFE-347pcf2) was measured at temperatures from 277 K to 400 K and at pressures up to 30 MPa. The reported density measurements for R-410A and HFE-347pcf2 are in the single-phase region and cover a density range above 0.92 g·cm -3 and 1.33 g·cm -3, respectively. The measured data of R-410A are compared with data reported by other researchers. Also, the measured data of R-410A are examined with an available equation of state. As a result, it is found that the present c ν data for R-410A agree well with those by other researchers and the calculated values with the equation of state in the measurement range except near the critical isochore.

    Original languageEnglish
    Pages (from-to)727-739
    Number of pages13
    JournalInternational Journal of Thermophysics
    Issue number4-5
    Publication statusPublished - May 2010

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics


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