Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration plant

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dc.contributor.authorAranguren Garacochea, Patricia
dc.contributor.authorSánchez, Daniel
dc.contributor.authorCasi Satrústegui, Álvaro
dc.contributor.authorCabello, Ramón
dc.contributor.authorAstrain Ulibarrena, David
dc.contributor.departmentIngenieríaes_ES
dc.contributor.departmentIngeniaritzaeu
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.date.accessioned2025-01-31T09:02:51Z
dc.date.available2025-01-31T09:02:51Z
dc.date.issued2021-05-25
dc.date.updated2025-01-31T08:57:44Z
dc.description.abstractThis study brings an experimental research that has tested a real transcritical CO2 vapor compression cycle that includes a thermoelectric subcooler at the exit of the gas-cooler of the refrigeration plant. The aforementioned technology hybridization increases the COP of refrigeration systems as long as the subcooling system is properly designed and operated. The experimental facility studied has been tested under constant ambient conditions (30 °C and relative humidity of 55%) and maintaining the evaporating temperature at -10 °C; while the voltage supplied to the thermoelectric modules and the thermal resistances of the heat exchangers located at the thermoelectric subcooler have been experimentally modified. The voltage supplied to the fans located at these heat exchangers was modified implying thermal performance deviation of the heat exchangers and a variation on the power consumption of the cooling facility. The results show an experimental increase on the COP of 11.3% while the cooling capacity increases a 15.3% when the thermoelectric modules are supplied with 2 V and the fans with 9 V. Moreover, the importance of optimizing the voltage supplied to the thermoelectric modules and to the auxiliary consumption of the thermoelectric subcooler is addressed along this research.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.
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAranguren P., Sánchez D., Casi A., Cabello R., Astrain D. (2021) Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration plant. Applied Thermal Engineering, 190(116826), 1-12. https://doi.org/10.1016/j.applthermaleng.2021.116826.
dc.identifier.doi10.1016/j.applthermaleng.2021.116826
dc.identifier.issn1359-4311
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/53201
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofApplied Thermal Engineering 190(116826), 1-12
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.applthermaleng.2021.116826
dc.rights© 2021 The Authors. This is an open access article under the CC BY license.
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCO2en
dc.subjectThermoelectric subcooleren
dc.subjectSubcoolingen
dc.subjectR744en
dc.subjectTranscritical operationen
dc.subjectCOPen
dc.titleExperimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration planten
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationb28d5c01-2691-468a-a076-5b6bb74ff88a
relation.isAuthorOfPublication59c56073-f216-4875-9952-1a55b743b32d
relation.isAuthorOfPublication5f626878-b8c6-4403-97ee-e14738ea30e2
relation.isAuthorOfPublication.latestForDiscoveryb28d5c01-2691-468a-a076-5b6bb74ff88a

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