SPEED OF SOUND IN LIQUID R134A

被引：20

作者：

GUEDES, HJR

ZOLLWEG, JA

机构：

[1] School of Chemical Engineering, Cornell University, Ithacha

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1992年 / 15卷 / 06期

关键词：

R134A; SPEED OF SOUND; PULSE-ECHO-OVERLAP TECHNIQUE;

D O I：

10.1016/0140-7007(92)90022-M

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The speed of sound for liquid R134a (1,1,1,2-tetrafluoroethane) has been measured along isotherms at temperatures from close to the triple point to above the critical temperature (180-380 K) at pressures from near saturation to 70 MPa. The measurements were made by using a pulse-echo-overlap technique at 3 MHz. A rational approximant fits the data with a standard deviation of 0.45 m s-1. Because the speed of sound depends on the molar volume and the adiabatic compressibility, these data may be used with density and heat capacity data to construct accurate thermodynamic property tables.

引用

页码：381 / 385

页数：5

共 15 条

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