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dc.contributor.authorIllán Gómez, Fernando 
dc.contributor.authorGarcía Cascales, José Ramón 
dc.contributor.authorSánchez Velasco, Francisco Javier 
dc.contributor.authorOtón Martínez, Ramón Antonio 
dc.date.accessioned2022-09-28T06:42:49Z
dc.date.available2022-09-28T06:42:49Z
dc.date.issued2022
dc.identifier.citationILLÁN GÓMEZ, Fernando et al. Numerical assessment of the use of a dedicated mechanical subcooling system during hot water generation in a water to wáter transcritical CO2 heat pump. En: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío Cytef2022. Avances en Ciencias y Técnicas del Frío - 11. Cartagena: Universidad Politécnica de Cartagena, 2022. Pp. 19-25. ISBN: 978-84-17853-55-6es_ES
dc.identifier.isbn978-84-17853-55-6
dc.description.abstractThis paper presents a numerical study of the use of a dedicated mechanical subcooling (DMS) system using R1234yf, for hot water generation in a water-to-water CO2 heat pump. Compressor mass flow rates and power consumptions were modeled using the manufacturer’s correlations, expansion valves were modeled as isenthalpic, and heat exchangers were modeled by deriving correlations for the evaporation/condensation pressure and heat transfer rate. In the condenser, IMST-ART was used to obtain condensation pressure and heat transfer rate. A cell-by- cell discretization model was used for the evaporator, which was a transcritical CO2, subcritical R1234yf heat exchanger. Three different systems were compared for the transcritical CO2 cycle: with internal heat exchanger (IHX), with DMS, and with IHX+DMS. Results showed that, for the conditions studied (hot water generation up to 60 ºC and evaporator water inlet temperature from 5- 25 ºC), the use of a DMS does not improve the performance of the system.es_ES
dc.description.sponsorshipThe authors wish to acknowledge the financial support of the Spanish Ministry of Economy, Industry, and Competitiveness and the European Regional Development Fund through project ENE2017-83665-C2-2-P.es_ES
dc.formatapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherUniversidad Politécnica de Cartagena. Ediciones UPCTes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleNumerical assessment of the use of a dedicated mechanical subcooling system during hot water generation in a water to water transcritical CO2 heat pumpes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.subject.otherMáquinas y Motores Térmicoses_ES
dc.subjectCYTEFes_ES
dc.subjectWater heateres_ES
dc.subjectTranscritical cyclees_ES
dc.subjectHeat pumpes_ES
dc.subjectCO2es_ES
dc.identifier.urihttp://hdl.handle.net/10317/11480
dc.identifier.doi10.31428/10317/11480
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.contributor.convenianteUniversidad Politécnica de Cartagenaes_ES
dc.conference.titleLibro de actas XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío Cytef2022. Avances en Ciencias y Técnicas del Frío - 11
dc.conference.datePublished2022-04-17
dc.conference.publisherUniversidad Politécnica de Cartagena. Ediciones UPCT


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