Experimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: Performance assessment and comparative
Évaluation expérimentale d’une installation frigorifique au CO2 transcritique fonctionnant avec un échangeur interne de chaleur et un sous-refroidisseur thermoélectrique : évaluation des performances et comparaison
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Otros documentos de la autoría: Casi, Álvaro; Aranguren, Patricia; Araiz, Miguel; Sánchez García-Vacas, Daniel; Cabello López, Ramón; Astrain, David
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
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Título
Experimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: Performance assessment and comparative;Évaluation expérimentale d’une installation frigorifique au CO2 transcritique fonctionnant avec un échangeur interne de chaleur et un sous-refroidisseur thermoélectrique : évaluation des performances et comparaisonAutoría
Fecha de publicación
2022-08-01Editor
ElsevierISSN
01407007Cita bibliográfica
Casi, Á., Aranguren, P., Araiz, M., Sanchez, D., Cabello, R., & Astrain, D. (2022). Experimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: Performance assessment and comparative. International Journal of Refrigeration, 141, 66-75.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The use of carbon dioxide in transcritical state has become one of the most used solutions to comply with the F-Gas directive and reduce greenhouse gases emissions from refrigeration systems at high ambient temperatures. ... [+]
The use of carbon dioxide in transcritical state has become one of the most used solutions to comply with the F-Gas directive and reduce greenhouse gases emissions from refrigeration systems at high ambient temperatures. For low-medium power units, the commonly used solutions to improve the efficiency such as the ejector, multiple compressor arrangements, mechanical subcooler, etc., add complexity and increase the cost of the refrigeration facility, which is not ideal for small units. In this low-medium power range, two technologies stand out to increase the performance of a carbon dioxide transcritical cycle: the internal heat exchanger and the thermoelectric subcooler. This study brings a complete research in which both solutions have been tested in the same experimental transcritical carbon dioxide refrigeration facility under the same working conditions. It focuses on the real performance of both systems and discusses the strengths and weaknesses of using an internal heat exchanger or a thermoelectric subcooler. The results show that the thermoelectric subcooler outperforms the internal heat exchanger in both the coefficient of performance and the cooling capacity while also being a more controllable and flexible solution. [-]
Publicado en
International Journal of Refrigeration, Volume 141, September 2022, Pages 66-75Entidad financiadora
Ministerio de Ciencia e Innovación of Spain (MICINN) | European Regional Development Fund (FEDER) | Universidad Pública de Navarra
Código del proyecto o subvención
RTI2018-093501-B-C21 | RTI2018-093501-B-C22
Derechos de acceso
© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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