Burnett method with absolute pressure transducer and measurements for PVT properties of nitrogen and hydrogen up to 473 K and 100MPa

Naoya Sakoda, K. Shindo, K. Motomura, K. Shinzato, Masamichi Kohno, Yasuyuki Takata, M. Fujii

Research output: Contribution to journalArticle

7 Citations (Scopus)


Ameasurement method for PVT properties of high-temperature and highpressure gases was developed by simplifying the Burnett method and revising the data acquisition procedure. Instead of a differential pressure transducer, which is traditionally used, an absolute pressure transducer is used in the present method, and the measurement of pressure becomes easier. However, the absolute pressure transducer is placed outside the constant temperature bath because of the difficulty of its use in high-temperature surroundings, and some parts with different temperatures from the sample vessels exist as dead space. The present method takes into account the effect of the dead space in the data acquisition procedure. Nitrogen was measured in the temperature range from 353K to 473K and at pressures up to 100MPa to determine the apparatus constants, and then, hydrogenwasmeasured at 473Kand up to 100MPa. The determined densities are in agreement within uncertainties of 0.07% to 0.24% (k = 2), both with the latest equation of state and existing measured data.

Original languageEnglish
Pages (from-to)6-21
Number of pages16
JournalInternational Journal of Thermophysics
Issue number1
Publication statusPublished - Jan 1 2012


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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