Performance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchanger

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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.departmentIngeniaritzaeu
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.contributor.departmentIngenieríaes_ES
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernuaes
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoaes
dc.date.accessioned2022-08-17T07:39:35Z
dc.date.available2022-08-17T07:39:35Z
dc.date.issued2022
dc.date.updated2022-08-17T07:26:15Z
dc.description.abstractRegulations in the refrigeration sector are forcing the transition to low global warming potential fluids such as carbon dioxide in order to decrease direct greenhouse gases emissions. Several technologies have arisen over the past years to compensate the low performance of the transcritical carbon dioxide vapour compression cycle at high ambient temperatures. For low-medium power units, the inclusion of a thermoelectric subcooler or an internal heat exchanger have been proven as effective solutions for enhancing the coefficient of performance. However, the combination of a thermoelectric subcooler and an internal heat exchanger working simultaneously is yet to be explored theoretically or experimentally. This work presents, for the first time, an experimental transcritical carbon dioxide refrigeration facility that works simultaneously with a thermoelectric subcooler and with an internal heat exchanger in order to boost the cooling capacity and coefficient of performance of the refrigeration system. The experimental tests report improvements at optimum working conditions of 22.4 % in the coefficient of performance and an enhancement in the cooling capacity of 22.5 %. The 22.4 % increase in coefficient of performance would result in a decrease of energy consumption along a reduction of the greenhouse gases emissions. The proposed combination of a thermoelectric subcooler and an internal heat exchanger outperforms each of the technologies on their own and presents itself as a great controllable solution to boost the performance and reduce the greenhouse gasses emissions of transcritical carbon dioxide refrigeration cycles.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. Publication funding provided by Universidad Pública de Navarra.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCasi, Á.; Aranguren, P.; Araiz, M.; Sánchez, D.; Cabello, R.; Astrain, D. (2022). Performance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchanger. Energy Conversion and Management. 268,115963en
dc.identifier.doi10.1016/j.enconman.2022.115963
dc.identifier.issn0196-8904
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/43809
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofEnergy Conversion and Management 268 (2022) 115963en
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.enconman.2022.115963
dc.rights© 2022 The Author(s). 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.subjectRefrigerationen
dc.subjectTranscriticalen
dc.subjectCarbon dioxideen
dc.subjectThermoelectric subcooleren
dc.subjectInternal heat exchangeren
dc.subjectCOPen
dc.titlePerformance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchangeren
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
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relation.isAuthorOfPublication.latestForDiscovery59c56073-f216-4875-9952-1a55b743b32d

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