Semi-empirical analysis of HFC supermarket refrigeration retrofit with advanced configurations from energy, environmental, and economic perspectives
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Otros documentos de la autoría: Mota-Babiloni, Adrián; Giménez-Prades, Pau; Makhnatch, Pavel; Rogstam, Jörgen; Fernández-Moreno, Adrián; Navarro-Esbrí, Joaquín
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Título
Semi-empirical analysis of HFC supermarket refrigeration retrofit with advanced configurations from energy, environmental, and economic perspectivesAutoría
Fecha de publicación
2022-02-23Editor
Elsevier B.V.ISSN
0140-7007Cita bibliográfica
Mota-Babiloni, A., Giménez-Prades, P., Makhnatch, P., Rogstam, J., Fernández-Moreno, A., & Navarro-Esbrí, J. (2022). Semi-empirical analysis of HFC supermarket refrigeration retrofit with advanced configurations from energy, environmental, and economic perspectives. International Journal of Refrigeration, 137, 257-271.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
F-gas phase-down schedules will remove most of the HFCs (hydrofluorocarbons) used in refrigeration systems in
the short term. Besides refrigerant substitution, configuration modifications can be considered in existing ... [+]
F-gas phase-down schedules will remove most of the HFCs (hydrofluorocarbons) used in refrigeration systems in
the short term. Besides refrigerant substitution, configuration modifications can be considered in existing installations to increase energy efficiency. Basic cycle, direct injection, economiser, parallel compression, and
cascade configurations with internal heat exchanger have been proposed to increase the energy efficiency of a
supermarket refrigeration system when replacing R-404A with R-449A at low and medium temperatures. Both
systems are based on indirect expansion and are equipped with a subcooler. Their regular operation was recorded
using R-404A and R-449A during a representative period. Then, a semi-empirical approach is followed to
determine R-449A energy performance with each proposed configuration. Only parallel compression (PC) and
basic cycle with internal heat exchanger (IHX) benefit energy performance, highlighting the medium temperature (MT) system. However, this benefit is not extended to the environmental analysis because the R-449A charge
in PC significantly increases. Moreover, additional PC components extend the expected payback period, and a
drop-in replacement is financially more interesting. Therefore, using R-449A with minor modifications in the MT
and LT R-404A refrigeration system decreases 52% and 60% carbon footprint, respectively. The payback period
of this action is below one year in both circuits. This study provides a semi-empirical methodology for existing
systems to predict alternative refrigerants’ energy performance [-]
Publicado en
International Journal of Refrigeration, Vol. 137 (May 2022)Entidad financiadora
Ministerio de Ciencia e Innovación
Código del proyecto o subvención
IJC2019-038997-I | MCIN/AEI/10.13039/501100011033
Derechos de acceso
© 2022 The Author(s).
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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