Partager

Document IIF

Calorimètre pour la mesure de la chaleur massique de divers frigorigènes naturels.

Calorimeter for measuring the isobaric specific heat capacity of natural refrigerants.

Auteurs : TANAKA K., TAKAHASHI G., KITAYAMA A., et al.

Résumé

The calorimeter for measuring the isobaric specific heat capacity of natural refrigerant was constructed. The calorimeter is batch type with the metal-bellows and based on the thermal relaxation method. The apparatus constants were calibrated by using water, methanol and R134a (1,1,1,2-tetrafluoroethane). The experimental uncertainty of the isobaric specific heat capacity is estimated to be 5.2% as a coverage factor k = 2. The isobaric specific heat capacities of R290 (propane) and R600a (isobutane) as natural refrigerants were measured in the temperature range from 310 to 360 K at the pressure of 5 MPa. The present data was correlated as a function of temperature, and its maximum deviations were 1.3% for R290 and 0.4% for R600a, respectively. The relative deviations of the present data from REFPROP ver.8.0 exist within the experimental uncertainty.

Documents disponibles

Format PDF

Pages : 2008-2

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Calorimeter for measuring the isobaric specific heat capacity of natural refrigerants.
  • Identifiant de la fiche : 2009-1927
  • Langues : Anglais
  • Source : 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
  • Date d'édition : 07/09/2008

Liens


Voir d'autres communications du même compte rendu (132)
Voir le compte rendu de la conférence

Indexation