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Nouveaux générateurs à sorption de petite taille pour les applications des pompes à chaleur.

Novel compact sorption generators for heat pump applications.

Auteurs : METCALF S. J., TAMAINOT-TELTO Z., CRITOPH R. E.

Résumé

A new type of liquid-solid heat exchanger-reactor (carbon-ammonia) has been developed for use in adsorption cycles. It has the requirement to be of low thermal mass and also to have good heat transfer. The design solution chosen is a novel plate heat exchanger. It uses nickel brazed shims and spacers to create adsorbent layers only 4 mm thick between pairs of liquid flow channels of very low thermal mass. Prototype sorption generators have been manufactured and are being evaluated. The design is being used in a gas-fired heat pump, intended to replace a combi-boiler in the UK or similar climate. The heat pump uses two generators operating out of phase in a regenerative cycle. The system is described. Initial heat and mass transfer experiments on the generator are presented together with predictions of performance in the chosen application.

Détails

  • Titre original : Novel compact sorption generators for heat pump applications.
  • Identifiant de la fiche : 2009-0603
  • Langues : Anglais
  • Source : 9th IEA Heat Pump Conference 2008: advances and prospects in technology, applications and markets. Conference proceedings [CD-ROM + abstracts].
  • Date d'édition : 20/05/2008

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