Partager

Document IIF

Absorption de l'eau par déshydratation dans des systèmes utilisant de l'ammoniac, du dioxyde de carbone et des hydrocarbures.

Desiccant water adsorption in ammonia, carbon dioxide and hydrocarbon systems.

Auteurs : BROESBY OLSEN F.

Résumé

In refrigeration systems water is responsible for chemical reaction problems. In several corrosion types and many refrigerant and oil decomposition phenomena water is the active ingredient. Traditionally water in refrigeration systems is removed by desiccant filter driers. With non polar CFCs the drying job is easy for the filter drier to do. No strong forces between refrigerant and water attempts to counteract the water uptake in simple desiccants. With polar refrigerants like most of the new HFCs, the kinetic forces between water and refrigerant molecules are giving desiccants a much harder job to do. Here the molecular sieve desiccants are very effective. But with ammonia being nearly as polar as water and with molecules almost equal in size, desiccant drying problems are heavy. These problems will be discussed and outlined in the presentation together with the situation in the natural working fluids hydrocarbons and carbon dioxide.

Documents disponibles

Format PDF

Pages : 1998-4

Document à numériser, disponible sous dix jours

  • 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 : Desiccant water adsorption in ammonia, carbon dioxide and hydrocarbon systems.
  • Identifiant de la fiche : 1999-2789
  • Langues : Anglais
  • Source : Natural Refrigerants, Energy Efficiency, Cost and Safety. Natural Working Fluids '98. IIR-Gustav Lorentzen Conference.
  • Date d'édition : 02/06/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres communications du même compte rendu (65)
Voir le compte rendu de la conférence

Indexation