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Conception d’un prototype de lyophilisateur domestique équipé d’un système frigorifique alimenté par fluide actif naturel et d’un système de chauffage par micro-ondes.

Prototype design of domestic‐scale freeze‐dryer with natural working fluid‐based refrigeration system and microwave heating system.

Numéro : 0651

Auteurs : PIECHNIK E., TOLSTOREBROV I., SMOLKA J., PALACZ M., BODYS J., HAIDA M., STEBEL M., MELKA B., NOWAK A., EIKEVIK T. M.

Résumé

One of the most promising food preservation methods is freeze‐drying, in which almost 100% of the water content is removed from the processed food product. As a result, processed food products do not require cooling during transportation or storage. On the other hand, the energy demand of the freeze‐drying process is relatively high. In this work, the novel freeze‐dryer for domestic application was equipped with natural working fluid‐based refrigeration system and microwave (MW) heating. The refrigeration unit was carefully analysed and optimised to maximise its performance and match the required cooling in an efficient way. In addition, the validated CFD model was used to redesign the vacuum chamber of the freeze. In consequence, a new design was proposed. As a result, the power consumption of the freeze dryer was significantly improved. The introduced changes to the refrigeration system resulted in 50% reduction of freezing time compared to the reference unit.

Documents disponibles

Format PDF

Pages : 10

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 : Prototype design of domestic‐scale freeze‐dryer with natural working fluid‐based refrigeration system and microwave heating system.
  • Identifiant de la fiche : 30031352
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0651

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