ASA 130th Meeting - St. Louis, MO - 1995 Nov 27 .. Dec 01

4pPA7. Thermodynamic properties of helium--xenon mixtures for thermoacoustic refrigerators.

John J. Hurly

Steven J. Boyes

James W. Schmidt

Natl. Inst. of Standards and Technol., Thermophys. Div., Gaithersburg, MD 20899

The equation of state and the speed of sound have been measured for helium, xenon, and three helium--xenon mixtures in the temperature and pressure ranges of interest for designing thermoacoustic refrigerators. The results have been correlated with a virial equation of state and can be used to optimize the refrigerator designs. [Work supported by the Office of Naval Research.]