R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimization
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INVESTIGACIONMetadatos
Título
R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimizationAutoría
Fecha de publicación
2019-06-12Editor
ElsevierCita bibliográfica
LLOPIS, Rodrigo, et al. R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimization. International Journal of Refrigeration, 2019, 106: 133-143Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0140700719302646Versión
info:eu-repo/semantics/acceptedVersionResumen
This work evaluates R-454C, R-459B, R-457A and R-455A as R-404A low-GWP substitutes in a stand-alone commercial refrigeration system for fresh product under ISO 23953-2. System is tested with and without receiver. ... [+]
This work evaluates R-454C, R-459B, R-457A and R-455A as R-404A low-GWP substitutes in a stand-alone commercial refrigeration system for fresh product under ISO 23953-2. System is tested with and without receiver. Charge was optimized based on energy consumption tests in climatic chamber. A significant increment of the evaporating temperature of the new mixtures has been observed, which mitigate the negative effects associated to the large glide. Operation is compatible with R-404A for this system, offering energy consumption reductions for optimized charges without receiver of: 2.07% with R-454C, 10.76% with R-459B, 10.48% with R-457A and 2.95% R-455A. Energy consumption reductions with receiver are of 2.45% with R-454C, 11.55% with R-459B, 10.69% with R-457A and 2.9% with R-455A. In most of the cases the optimum refrigerant charge was below R-404A one. It is concluded that R-404A low-GWP substitutes can reduce refrigerant charge and improve energy performance in relation to R-404A. [-]
Proyecto de investigación
Generalitat Valenciana, Conselleria d'Educació, Investigació, Cultura i Esport (project AICO/2018/058)Derechos de acceso
© 2019 Elsevier Ltd and IIR. All rights reserved.
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