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Effets de la zone d'écoulement du tube de laminage sur la performance d'un système de conditionnement d'air mobile au CO2.

Effects of throttle tube flow area on performance of CO2 mobile air-conditioning system.

Numéro : pap. D2-127

Auteurs : ZHAO Y., QI Z., CHEN J.

Résumé

A simulation model for CO2 air-conditioning system in vehicle was developed in this paper. The model was used to investigate the effect of throttle tube flow area on the performance of CO2 air-conditioning system. The simulation results showed that under city condition, the operation state of CO2 air conditioning was affected by the throttle tube flow area significantly. The system condensation pressure could be too large and the system could not work stably when the throttle tube flow area was too small. The coefficient of performance (COP) of CO2 air-conditioning system would decrease appreciably when the throttle tube flow area increased from 0.5 to 1.3 mm2. There existed a maximum system cooling capacity with the throttle tube flow area increasing from 0.5 to 1.3 mm2. When the orifice flow area was 1 mm2, the CO2 air-conditioning system would achieve a maximum cooling capacity.

Documents disponibles

Format PDF

Pages : 5 p.

Disponible

  • 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 : Effects of throttle tube flow area on performance of CO2 mobile air-conditioning system.
  • Identifiant de la fiche : 30005463
  • Langues : Anglais
  • Source : ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
  • Date d'édition : 07/06/2010

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