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Nouvelles positions pour un échangeur de chaleur interne dans un système frigorifique supercritique au CO2. Analyse expérimentale et évaluation énergétique.

New positions for an internal heat exchanger in a CO2 supercritical refrigeration plant. Experimental analysis and energetic evaluation.

Auteurs : SÁNCHEZ D., PATIÑO J., LLOPIS R., et al.

Type d'article : Article

Résumé

IHX is probably, one of the most commonly alternative used to improve cooling capacity and COP in a CO2 refrigerating plant working in supercritical conditions. The “classical” position at gas-cooler exit has been analyzed by several authors with positive results. The aim of this work is to compare, from experimental approach, the energetic behavior of a refrigerating plant working with several IHX configurations: gas-cooler exit (classical position), liquid receiver exit, and in both positions at the same time. The energetic behavior includes: cooling capacity, power consumption and COP. Moreover, the discharge temperature reached on each position has been analyzed. From the experimental results, a general improvement in COP and cooling capacity has been observed regardless the position of the IHX. A maximum increment of 13% on COP has been registered working with two IHX at the same time.

Détails

  • Titre original : New positions for an internal heat exchanger in a CO2 supercritical refrigeration plant. Experimental analysis and energetic evaluation.
  • Identifiant de la fiche : 30010614
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 63 - n. 1
  • Date d'édition : 02/2014
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2013.10.061

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