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Étude de la température de sublimation de la glace carbonique dans le transport des vaccins Covid-19. 

Study of the sublimation temperature of the dry ice in the transport of the Covid-19 vaccines.

Numéro : 1150

Auteurs : CALBA C., ASSIER J-F., GIRAUD T., CAVALIER G.

Résumé

The immunization campaign for Covid-19 requires the use of a cold chain at very low temperatures. Some of the vaccines must be transported and stored between -60 and -90°C.
Dry ice is used to transport vaccines at those temperatures. Dry ice sublimates at -78.5 °C, at normal pressure conditions. The performance of this cold chain is tracked by recording the temperatures throughout the transport. However, temperatures even lover than -90 °C have been recorded during transport refrigerated by dry ice.
The aim of this study is to explain those temperature recorded variations by a data logger in an apparently stable environment.
Our initial hypothesis was pressure variation: thus we needed to identify what could possibly cause these pressure variations and reproduce it.

Documents disponibles

Format PDF

Pages : 7 p.

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 : Study of the sublimation temperature of the dry ice in the transport of the Covid-19 vaccines.
  • Identifiant de la fiche : 30029508
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 7th IIR International Conference on Sustainability and the Cold Chain Online. Proceedings: April 11-13 2022
  • Date d'édition : 11/04/2022
  • DOI : http://dx.doi.org/10.18462/iir.iccc2022.1150
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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