PartagerÉtude de la modélisation de frigorigènes à faible potentiel de réchauffement planétaire (GWP) pour un conditionneur d'air individuel équipé d’échangeurs thermiques à micro-canaux.
Low GWP refrigerants modelling study for a room air conditioner having microchannel heat exchangers.
Numéro : pap. 2563
Auteurs : SHEN B., BHANDARI M., RANE M. V., et al.
Résumé
Microchannel heat exchangers (MHX) have found great successes in residential and commercial air conditioning applications, being compact heat exchangers, to reduce refrigerant charge and material cost. This investigation aims to extend the application of MHXs in split, room air conditioners (RAC), per fundamental heat exchanger and system modelling. For this paper, microchannel condenser and evaporator models were developed, using a segment-to-segment modelling approach. The microchannel heat exchanger models were integrated to a system design model. The system model is able to predict the performance indices, such as cooling capacity, efficiency, sensible heat ratio, etc. Using the calibrated system and heat exchanger models, we evaluated numerous low GWP (global warming potential) refrigerants. The predicted system performance indices, e.g. cooling efficiency, compressor discharge temperature, and required compressor displacement volume etc., are compared. Suitable replacements for R22 and R-410A for the room air conditioner application are recommended.
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Détails
- Titre original : Low GWP refrigerants modelling study for a room air conditioner having microchannel heat exchangers.
- Identifiant de la fiche : 30019016
- Langues : Anglais
- Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 11/07/2016
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