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System for optimal control of the refrigerant charge to increase the efficiency of transport temperature control units operating at low ambient temperatures.

Auteurs : RADULESCU C., LOHAN J., HIGGINS H.

Résumé

Despite the clear demand from food distributors situated in cold climates for Transport Temperature Control (TTC) units with adequate heating capacity, limited research has only been conducted by the refrigerated transport industry on this aspect of the unit behaviour. Consequently, this paper sought to address this need by presenting the benefits of using: (i) hot-gas injection; and (ii) a refrigerant charge control system to improve the heating behaviour of a TTC trailer unit for longdistance road transportation of perishable food products, operating at temperatures below 0 oC. The results show a significant increase of 8 % and 15 %, respectively, in the heating capacity, while the unit operates with lower fuel consumption and higher efficiency. Noticeable improvements in the compressor behaviour and set-point pull-up time were also obtained.

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Pages : 10

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Détails

  • Titre original : System for optimal control of the refrigerant charge to increase the efficiency of transport temperature control units operating at low ambient temperatures.
  • Identifiant de la fiche : 30028268
  • Langues : Anglais
  • Source : EUROFREEZE: Individual Quick Freezing of Foods - Workshop Proceedings, Sofia, Bulgaria, January 13-15, 2005.
  • Date d'édition : 01/2005

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