Apparatus for the measurement of the speed of sound of ammonia up to high temperatures and pressures.

Autor: Dubberke, Frithjof H., Rasche, David B., Baumhögger, Elmar, Vrabeca, Jadran
Předmět:
Zdroj: Review of Scientific Instruments; 2014, Vol. 85 Issue 8, p1-6, 6p
Abstrakt: An apparatus for the measurement of the speed of sound based on the pulse-echo technique is presented. It operates up to a temperature of 480 K and a pressure of 125 MPa. After referencing and validating the apparatus with water, it is applied to liquid ammonia between 230 and 410 K up to a pressure of 124 MPa. Speed of sound data are presented with an uncertainty between 0.02% and 0.1%. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index