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Capacités thermiques isochoriques des mélanges d'éthanol-eau à des températures s'élevant de 280 à 420 K et à des pressions allant jusqu'à 30 MPa.

Isochoric heat capacities of ethanol-water mixtures at temperatures from 280 to 420 K and pressures to 30 MPa.

Auteurs : KITAJIMA H., KAGAWA N., ENDO H., et al.

Résumé

Isochoric heat capacities of ethanol-water mixtures were measured with a twin-cell type adiabatic calorimeter. Temperatures were measured with a platinum resistance thermometer on the bottom of each cell and were reported on the ITS-90. Sample pressure measurements were made with a quartz crystal transducer. Densities were calculated from the volume of the calorimeter cell and sample mass. The experimental expanded uncertainty (with a coverage factor k= 2) of temperature measurements is plus or minus 13 mK, and that of pressure measurement is plus or minus 8 kPa. The expanded relative uncertainty for isochoric heat capacity is estimated to be plus or minus 2% for liquid phase measurements, and for density it is plus or minus 0.16%.

Détails

  • Titre original : Isochoric heat capacities of ethanol-water mixtures at temperatures from 280 to 420 K and pressures to 30 MPa.
  • Identifiant de la fiche : 2006-1124
  • Langues : Anglais
  • Source : Green breeze from Asia: frontiers of refrigerants, heat transfer and system.. ACRA-2002. Proceedings of the Asian conference on refrigeration and air conditioning.
  • Date d'édition : 04/12/2002

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