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Performance d'un système frigorifique à absorption de vapeur opérant avec des hydrofluorocarbures et des hydrofluorooléfines comme frigorigènes et du liquide ionique [hmim][TF2N] comme absorbant.

Comparison of performance of a vapor absorption refrigeration system operating with some hydrofluorocarbons and hydrofluoroolefins as refrigerants along with ionic liquid [hmim][TF2N] as the absorbent.

Auteurs : SUJATHA I., VENKATARATHNAM G.

Type d'article : Article, Article de la RIF

Résumé

The performance of a vapor absorption refrigeration system (VARS) operating with ionic liquid [hmim][TF2N] and HFC refrigerants R32, R152a and R125 and HFO refrigerants R1234ze(E) and R1234yz has been analysed. The PC-SAFT equation of state is used to estimate the properties of ionic liquid-refrigerant solutions as well as that of pure refrigerants. The effect of absorber, generator, evaporating and condensing temperatures on the coefficient of performance and circulation ratio has been studied. A COP value of 0.5 and above can be obtained with the combination R32-[hmim][TF2N] in typical air-conditioning applications. An exergy analysis has been carried out to understand the major sources of losses in different components. The results show that the performance of a VARS with [hmim]TF2N] and HFC refrigerants R32 and R152a is better than that with [hmim]TF2N] and HFO refrigerants R1234yf and R1234ze(E). The results of this study show that ionic liquid-low GWP refrigerants R32/R152a combinations are suitable for use in vapor absorption refrigeration systems for air conditioning applications.

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Format PDF

Pages : 370-382

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Comparison of performance of a vapor absorption refrigeration system operating with some hydrofluorocarbons and hydrofluoroolefins as refrigerants along with ionic liquid [hmim][TF2N] as the absorbent.
  • Identifiant de la fiche : 30023548
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 88
  • Date d'édition : 04/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.03.004

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