Accession Number:

AD0684530

Title:

EXPERIMENTAL DETERMINATION OF GAS PROPERTIES AT HIGH TEMPERATURES AND/OR PRESSURES

Descriptive Note:

Final rept. Sep 1967-Oct 1968

Corporate Author:

PANAMETRICS INC WALTHAM MA

Report Date:

1969-03-01

Pagination or Media Count:

62.0

Abstract:

The problem of extending transport property measurements to conditions of high pressure p 10000 atm and temperature T 20,000K beyond the range of conventional techniques is summarized. The advantages of unconventional techniques over conventional transport property measurement techniques in regions where they overlap are presented for application at extreme pressure-temperature conditions. The application of ultrasonic absorption and sound speed to the determination of thermodynamic and transport properties at high pressures is discussed. Measurements are presented at 300K and pressures up to 100 atm in the argon-nitrogen and helium-argon systems. The schlieren differential interferometer is applied to thermal conductivity measurements at high pressures andor temperatures. Some thermal conductivity measurements in nitrogen and air are reported at temperatures between 2000 and 5000K.

Subject Categories:

  • Physical Chemistry
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE