Experimental assessment of different extraction points for the integrated mechanical subcooling system of a CO2 transcritical plant
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Otros documentos de la autoría: Nebot-Andres, Laura; Calleja-Anta, Daniel; Fossi, Carlos; Sánchez García-Vacas, Daniel; Cabello López, Ramón; Llopis, Rodrigo
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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INVESTIGACIONMetadatos
Título
Experimental assessment of different extraction points for the integrated mechanical subcooling system of a CO2 transcritical plantAutoría
Fecha de publicación
2022-01-04Editor
Elsevier B.V.ISSN
0140-7007Cita bibliográfica
Laura Nebot-Andrés, Daniel Calleja-Anta, Carlos Fossi, Daniel Sánchez, Ramón Cabello, Rodrigo Llopis, Experimental assessment of different extraction points for the integrated mechanical subcooling system of a CO2 transcritical plant, International Journal of Refrigeration (2022), doi: https://doi.org/10.1016/j.ijrefrig.2022.01.006Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Subcooling systems are positioned in recent years as one of the best solutions to improve the efficiency of transcritical CO2 cycles. Specifically, the integrated mechanical subcooling cycle allows the improvement of ... [+]
Subcooling systems are positioned in recent years as one of the best solutions to improve the efficiency of transcritical CO2 cycles. Specifically, the integrated mechanical subcooling cycle allows the improvement of these systems only using CO2 as a refrigerant. This integrated cycle can be designed with three different architectures: extracting the CO2 from the gas-cooler outlet, from the subcooler outlet or from the liquid tank. In this work, the three configurations are experimentally analysed and the main differences between them are studied. An experimental plant has been tested at three heat rejection levels (25.0, 30.4 and 35.1°C) and a fixed temperature of the secondary fluid at the evaporator inlet of 3.8°C. The results show that from an energy efficiency point of view, all the configurations have practically the same COP, with certain variations in the cooling capacity and the greatest differences in the cycles are found in the subcooler. [-]
Publicado en
International Journal of Refrigeration. Vol. 133 (January 2022)Entidad financiadora
Ministerio de Ciencia y Tecnología | Ministerio de Educación, Cultura y Deporte | Universitat Jaume I
Código del proyecto o subvención
RTI2018-093501-B-C21 | FPU16/00151 | UJI-B2019-56 | PREDOC/2019/19
Título del proyecto o subvención
Mitigación del potencial de efecto invernadero en sistemas de refrigeración comercial autónomos (LOWTEWI) | Sistemas de subenfriamiento en ciclos de refrigeración de CO2 transcrítico. Evaluación experimental de límites de mejora energética en climas cálidos | Mejora de la eficiencia energética de sistemas de refrigeración comercial "booster", empleando CO2 como fluido refrigerante
Derechos de acceso
info:eu-repo/semantics/openAccess
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