Measurements of the speed of sound in gaseous cis-1,3,3,3-tetrafluoroprop-1-ene, (R1234ze(Z)), are pre- sented. The measurements were performed using a quasi-spherical acoustic resonator at temperatures between 307 K and 420 K and pressures up to 1.8 MPa. Ideal-gas heat capacities and acoustic virial coeffi- cients over the same temperature range were directly calculated from the results. The relative accuracy of our determinations of the speed of sound w ( p,T ) of R1234ze(Z) was approximately ±0.02%. The accuracy of the determination of the ideal gas heat capacity ratio γ0 ( T ) was approximately ±0.25%. These data were found to be mostly consistent with the predictions of a fundamental equation of state of R1234ze(Z).

Speed of sound in gaseous cis-1,3,3,3-tetrafluoropropene (R1234ze(Z)) between 307 K and 420 K / Lozano-Martín, D.; Ripa, D. Madonna; Gavioso, R. M.. - In: INTERNATIONAL JOURNAL OF REFRIGERATION. - ISSN 0140-7007. - 100:(2019), pp. 37-47. [10.1016/j.ijrefrig.2019.01.021]

Speed of sound in gaseous cis-1,3,3,3-tetrafluoropropene (R1234ze(Z)) between 307 K and 420 K

Ripa, D. Madonna;Gavioso, R. M.
2019

Abstract

Measurements of the speed of sound in gaseous cis-1,3,3,3-tetrafluoroprop-1-ene, (R1234ze(Z)), are pre- sented. The measurements were performed using a quasi-spherical acoustic resonator at temperatures between 307 K and 420 K and pressures up to 1.8 MPa. Ideal-gas heat capacities and acoustic virial coeffi- cients over the same temperature range were directly calculated from the results. The relative accuracy of our determinations of the speed of sound w ( p,T ) of R1234ze(Z) was approximately ±0.02%. The accuracy of the determination of the ideal gas heat capacity ratio γ0 ( T ) was approximately ±0.25%. These data were found to be mostly consistent with the predictions of a fundamental equation of state of R1234ze(Z).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/60121
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