Experimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: performance assessment and comparative

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dc.contributor.authorCasi Satrústegui, Álvaro
dc.contributor.authorAranguren Garacochea, Patricia
dc.contributor.authorAraiz Vega, Miguel
dc.contributor.authorSánchez, Daniel
dc.contributor.authorCabello, Ramón
dc.contributor.authorAstrain Ulibarrena, David
dc.contributor.departmentIngenieríaes_ES
dc.contributor.departmentIngeniaritzaeu
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernuaes
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoaes
dc.date.accessioned2022-08-08T06:21:35Z
dc.date.available2022-08-08T06:21:35Z
dc.date.issued2022
dc.date.updated2022-08-08T06:10:45Z
dc.description.abstractThe 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.en
dc.description.sponsorshipThe authors would like to acknowledge the support of the Spanish Ministry of Science, Innovation and Universities, and European Regional Development Fund, for the funding under the RTI2018-093501-B-C21 and RTI2018-093501-B-C22 research projects. We would also like to acknowledge the support from the Education Department of the Government of Navarra with the Predoctoral Grants for Phd programms of Interest to Navarra and the Official School of Industrial Engineers of Navarre with the scholarship Fuentes Dutor. Open access funding provided by Universidad Pública de Navarra.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCasi, 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 .en
dc.identifier.doi10.1016/j.ijrefrig.2022.05.024
dc.identifier.issn0140-7007
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/43724
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofInternational Journal of Refrigeration 141 (2022) 66-75en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093501-B-C21/ES/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093501-B-C22/ES/
dc.relation.publisherversionhttps://doi.org/10.1016/j.ijrefrig.2022.05.024
dc.rights© 2022 The Authors. This is an open access article under the CC BY-NC-ND license.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectTranscritical cycleen
dc.subjectSubcoolingen
dc.subjectThermoelectric subcooleren
dc.subjectIHXen
dc.subjectCO2en
dc.subjectR744en
dc.titleExperimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: performance assessment and comparativeen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
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relation.isAuthorOfPublicationb28d5c01-2691-468a-a076-5b6bb74ff88a
relation.isAuthorOfPublicationb191fa17-dc29-406f-891a-6fe13ccc325a
relation.isAuthorOfPublication5f626878-b8c6-4403-97ee-e14738ea30e2
relation.isAuthorOfPublication.latestForDiscovery59c56073-f216-4875-9952-1a55b743b32d

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