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Evaluation des performances et consommation d'énergie, selon la norme UNI-EN 441, de vitrines frigorifiques à fluide frigoporteur, dans le domaine des moyennes et basses températures.

Valutazioni prestazionali e consumi energetici secondo la norma UNI-EN 441 di Banchi Espositori Commerciali funzionanti, con fluido secondario.

Auteurs : SCHIESARO P.

Résumé

In spite of their advantages, indirect cooling systems require more power than direct cooling systems. The author describes the tests he carried out on two display cases: one was a wall display case using propylene glycol-water as a coolant and operating in a temperature range of 0-8 deg C; the other was a frozen-food display case using tyfoxite water as a coolant and operating in a temperature range of -22/-24 deg C. For each series of tests, the author describes the measurement apparatus and procedures, coolant characteristics and results, with reference to the UNI-EN 441 standard. He also deals with the problems caused by the use of tyfoxite. Finally, he synthesizes the conditions of use of indirect cooling systems in commercial refrigeration.

Détails

  • Titre original : Valutazioni prestazionali e consumi energetici secondo la norma UNI-EN 441 di Banchi Espositori Commerciali funzionanti, con fluido secondario.
  • Identifiant de la fiche : 1998-2817
  • Langues : Italien
  • Source : FREE '97. Fluidi refrigeranti, espandenti, estinguenti./ FREE '97. Refrigerating, blowing and extinguishing agents.
  • Date d'édition : 18/04/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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