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Document IIF

Étude d'un système frigorifique à éjection bi-étagé.

Investigation on a two-stage ejection refrigeration system.

Numéro : pap. ID156

Auteurs : HE Y., CHEN Z., TANG L., et al.

Résumé

To effectively utilize low grade heat, and to make ejection refrigeration system more stable and efficient under high condensing temperatures, a two stage ejection refrigeration system is presented and investigated in this study. The performance of the system is investigated under generating temperatures of from 130 - 150°C , condensing temperatures of 45 - 54°C and evaporating temperatures from 6 - 30°C . The experiment results show that the presented two stage ejection refrigeration system can operate normally under condensing temperature of 54°C , which is much higher than the normal condensing temperature of a single stage ejection refrigeration system. However, the extra power input to drive the 2nd ejector make this system less efficient under condensing temperatures below 50°C . Under this circumstances, through adjustment, this system can use one or two ejectors under different condensing temperatures, which expands the application range of ejection refrigeration systems.

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Format PDF

Pages : 9 p.

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Investigation on a two-stage ejection refrigeration system.
  • Identifiant de la fiche : 30012403
  • Langues : Anglais
  • Source : 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Date d'édition : 02/08/2014

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