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Document IIF

Performance d'un conditionneur d'air de type split utilisant un condenseur muni de chicanes pour la séparation liquide/vapeur.

Performances of a split-type air conditioner employing a condenser with liquid–vapor separation baffles.

Auteurs : CHEN Y., HUA N., DENG L. S.

Type d'article : Article, Article de la RIF

Résumé

In this paper, a kind of heat exchanger with liquid–vapor separation baffles used as condenser was proposed for enhancing its thermal performance. Two HCFC-22 air-conditioning units using the new heat exchanger and the traditional fin-and-tube heat exchanger respectively were constructed. The optimal system refrigerant charge amount and capillary tube length for both systems were experimentally investigated. The results showed that the enhanced condenser unit could supply the equivalent cooling capacity and energy efficiency ratio (EER) as those of the baseline one at the standard cooling condition when it had only 63.1% condenser heat transfer area and 80.3% charge amount of the baseline unit. Compared with the baseline unit, the cooling capacity and EER of the new unit were reduced more significantly at undercharge conditions, but their degradations were limited at overcharged conditions. Discharge and suction pressure, mass flow rate, subcooling and superheating degree were also investigated and discussed.

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Format PDF

Pages : 278-289

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Détails

  • Titre original : Performances of a split-type air conditioner employing a condenser with liquid–vapor separation baffles.
  • Identifiant de la fiche : 30003283
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 2
  • Date d'édition : 03/2012

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