Experimental assessment of different extraction points for the integrated mechanical subcooling system of a CO2 transcritical plant
![Thumbnail](/xmlui/bitstream/handle/10234/197220/IJR_2022_experimental%20assesement.pdf.jpg?sequence=5&isAllowed=y)
View/ Open
Impact
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Experimental assessment of different extraction points for the integrated mechanical subcooling system of a CO2 transcritical plantAuthor (s)
Date
2022-01-04Publisher
Elsevier B.V.ISSN
0140-7007Bibliographic citation
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.2022.01.006Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
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. [-]
Is part of
International Journal of Refrigeration. Vol. 133 (January 2022)Funder Name
Ministerio de Ciencia y Tecnología | Ministerio de Educación, Cultura y Deporte | Universitat Jaume I
Project code
RTI2018-093501-B-C21 | FPU16/00151 | UJI-B2019-56 | PREDOC/2019/19
Project title or grant
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
Rights
info:eu-repo/semantics/openAccess
This item appears in the folowing collection(s)
- EMC_Articles [825]