Optimisation of the throttling system in a CO2 refrigerating machine (Articolo in rivista)

Type
Label
  • Optimisation of the throttling system in a CO2 refrigerating machine (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0140-7007(03)00077-X (literal)
Alternative label
  • Vanna Casson ; Luca Cecchinato; Marco Corradi; Ezio Fornasieri; Sergio Girotto; Silvia Minetto; Lorenzo Zamboni; Claudio Zilio (2003)
    Optimisation of the throttling system in a CO2 refrigerating machine
    in International journal of refrigeration
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vanna Casson ; Luca Cecchinato; Marco Corradi; Ezio Fornasieri; Sergio Girotto; Silvia Minetto; Lorenzo Zamboni; Claudio Zilio (literal)
Pagina inizio
  • 926 (literal)
Pagina fine
  • 935 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 26 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica Tecnica, Universita` degli Studi di Padova, via Venezia 1, I-35131 Padova, Italy Costan SpA, via degli Alpini 14, I-32020 Limana (BL), Italy (literal)
Titolo
  • Optimisation of the throttling system in a CO2 refrigerating machine (literal)
Abstract
  • This paper is an answer to the need of finding the optimal solution for the throttling system in refrigerating machines using CO2 as working fluid; such a solution must combine reliability, low installation cost and high energy efficiency. To this purpose, different expansion systems are compared by means of a simulation programme, including a new one, operating with a differential valve, a liquid receiver and a thermostatic valve. The typical compression refrigerating cycle performed by CO2 involves transcritical operations and therefore the upper pressure needs to be adjusted to the optimal value, that, unlike the traditional cycle, is not determined by heat transfer. The innovative system here proposed shows an intrinsic self-adjusting capability that leads to COP values quite close to the maximum ones when a fixed suitable value of the differential pressure is chosen, even if the temperature of the secondary fluid varies to a large extent. (literal)
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