Translated title of the contribution: PρTχ Property Measurements of Binary HFO-1234ze(E)+HFC-32 Refrigerant Mixtures

小林 恵三, 田中 勝之, 東 之弘

Research output: Contribution to journalArticle


<tt>An experimental apparatus for measuring </tt><tt><i>PρTx </i></tt><tt>(pressure-density-temperature-composition) properties along isochores was constructed. After the calibration of pressure sensor and the determination of the inner volume of sample vessel, the reproducibility of the experimental apparatus was confirmed by the measurement of isochores for pure HFC-134a (1,1,1,2-tetrafluoroethane). The </tt><tt><i>PρTx </i></tt><tt>properties of the 50 mass% HFO-1234ze(E) (trans-1,3,3,3-tetrafluoropropene) + 50 mass% HFC-32 (difluoromethane) mixtures and those of the 75 mass% HFO-1234ze(E) + 25 mass% HFC-32 mixtures were measured for five isochores including 128 </tt><tt><i>PρTx </i></tt><tt>property data points and for seven isochores including 188 </tt><tt><i>PρTx </i></tt><tt>property data points, respectively. The critical pressures were determined from the present isochores close to the critical density against the critical temperature. The relationship between pressure and temperature at vapor-liquid equilibrium was graphically determined from thepresentisochores</tt><tt>. </tt>
Original languageJapanese
Pages (from-to)415-426
Number of pages12
Issue number4
Publication statusPublished - Dec 31 2011


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