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Analyse critique des substituts du R-410A dans les applications de pompes à chaleur.
Critical analysis of replacements for R-410A in heat pump applications.
Numéro : 2565
Auteurs : LI Z., YANA MOTTA S., SHEN B., FRICKE B., WAN H.
Résumé
Using low-GWP refrigerants can reduce the Green House Gas (GHG) emission of HVAC systems. Research has shown that using heat exchangers with small diameter tubes is a promising solution to meet the performance goals of heat pump using low-GWP refrigerants due to reduced refrigerant charge, reduced flammable impact and environmental impact. However, application of small diameter tube requires in-depth component design optimization to make the new system adapt to low-GWP refrigerants.
In this paper, multi-objective optimizations using Particle Swarm Optimization (PSO) algorithm on a R-410A residential 5-ton air source heat pump is performed for improved system performance and reduced material cost. Five R-410A alternatives, i.e., R-32, R-454A, R-454B, R-454C and R-455A are investigated. R-455A and R-454C have GWP lower than 150. As a result of optimization, 12.4%-19.1% Energy Efficiency Ratio (EER) improvement and up to 71% HXs material cost saving is achieved. Life Cycle Climate Performance (LCCP) analysis shows that optimized systems reduce total CO2 emission by 13%-33% depending on the choice of refrigerant and climate zone.
The optimal heat exchangers resulting from this research can fit into the original R-410A fan-coil units. The proposed heat pump design method establishes a production and installation path to produce cost-effective low-GWP heat pumps easily accepted by end users.
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Pages : 9 p.
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Détails
- Titre original : Critical analysis of replacements for R-410A in heat pump applications.
- Identifiant de la fiche : 30030773
- Langues : Anglais
- Sujet : Technologie
- Source : 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 2022
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- Date : 01/2021
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 121
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Heat exchanger soft-optimization for low-GWP R4...
- Auteurs : HOU W., FARD H. R., BURNS L., GROLL E. A., ZIVIANI D.
- Date : 21/08/2023
- Langues : Anglais
- Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Formats : PDF
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Development of design guidelines for fin-and-tu...
- Auteurs : SALEEM S., BRADSHAW C. R., BACH C. K.
- Date : 11/2022
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 143
- Formats : PDF
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Multi-objective optimization of a residential a...
- Auteurs : BESHR M., AUTE V., RADERMACHER R.
- Date : 07/2016
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 67
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Assessment and optimisation of low-GWP refriger...
- Auteurs : LONGO G. A., MANCIN S., RIGHETTI G., ZILIO C., BROWN J. S.
- Date : 09/2020
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 117
- Formats : PDF
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