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Pression de vapeur et chaleur massique de LiBr-H2O à haute température.

Vapour pressure and specific heat of LiBr-H2O at high temperature.

Auteurs : LANGELIERS J., SARKISIAN P., ROCKENFELLER U.

Résumé

The vapour pressure and specific heat of LiBr-H2O solutions were measured at temperatures up to 250 °C and concentrations up to 66% LiBr by weight. The vapour-pressure measurements were performed using a 1000 ml stainless steel pressure bomb fitted with a borosilicate glass liner and housed in a gas chromatograph oven, modified to automatically cycle the temperature. The estimated accuracy of the vapour pressure measurements, expressed as a variation in dew-point temperature, is 0.5 °C. Specific heat was measured with a Calvet calorimeter running in differential scanning calorimetry mode with high-pressure closed cells. Estimated accuracy for the specific heat measurements is 2% up to 200 °C and 3% above 200 °C.

Détails

  • Titre original : Vapour pressure and specific heat of LiBr-H2O at high temperature.
  • Identifiant de la fiche : 2005-1224
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2003 Winter Meeting, Chicago, Illinois. Volume 109, part 1 + CD-ROM.
  • Date d'édition : 2003

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