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Analyse des échangeurs de chaleur au dioxyde de carbone supercritique dans le processus de refroidissement.

Analysis of supercritical carbon dioxide heat exchangers in the cooling process.

Auteurs : CHEN Y., LUNDQVIST P.

Résumé

Carbon dioxide transcritical cycles have become more and more investigated during the last decade. For all systems operating with such a cycle, there will be at least one heat exchanger to either heat or cool the supercritical carbon dioxide. Unlike in the sub-critical region, the supercritical carbon dioxide's thermophysical properties will have sharp variations in the region close to its critical point. This variation has a significant influence on the shape of the heat exchanger's temperature profile and the heat transfer performance of the heat exchanger. Therefore, the performance of the heat exchanger used for the supercritical carbon dioxide cooling or heating process should be evaluated by taking this effect into account. This paper discusses the heat exchangers used for supercritical carbon dioxide refrigeration process including a suction gas heat exchanger in the cycle. Engineering Equation Solver and Refprop 7.0 are used for cycle calculations and for properties calculations.

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  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Analysis of supercritical carbon dioxide heat exchangers in the cooling process.
  • Identifiant de la fiche : 2007-1481
  • Langues : Anglais
  • Source : 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 17/07/2006

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