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Analysis and optimization of subcritical two-stage vapor injection heat pump systems

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Analysis and optimization of subcritical two-stage vapor injection heat pump systems

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dc.contributor.author Redón Climent, Alicia es_ES
dc.contributor.author Navarro Peris, Emilio es_ES
dc.contributor.author Pitarch, M. es_ES
dc.contributor.author Gonzálvez Maciá, José es_ES
dc.contributor.author Corberán Salvador, José Miguel es_ES
dc.date.accessioned 2015-07-06T11:07:31Z
dc.date.available 2015-07-06T11:07:31Z
dc.date.issued 2014-07
dc.identifier.issn 0306-2619
dc.identifier.uri http://hdl.handle.net/10251/52736
dc.description.abstract Two of the major problems of heat pump systems working in extreme conditions are the loss of efficiency of the system and the high compressor discharge temperatures. One possibility in order to overcome these issues is to perform the compression in two stages. In this frame the use of vapor injection two stage cycles represent an economic and effective solution. This study analyzes the influence of design parameters and injection conditions for two different configurations of two stage cycles, for four refrigerants (R407C, R290, R22 and R32). Design parameters, such as the displacement ratio, are optimized in terms of COP in ideal conditions for both injection systems. A deeper analysis taking into account the efficiencies of the compressor is done finding that two stage systems could reach improvements of 30% in terms of COP compared with one stage systems and that a bad design of this type of systems could represent a loss of improvement between 6% and 10%. Finally a method to control the system at any operating point in order to make it works in its optimum is done. From all the analysis, guidelines for the optimum design and control of such systems are obtained in terms of capacity, Coefficient of Performance (COP), seasonal performance factor and discharge temperature criteria. es_ES
dc.description.sponsorship This work has been partially supported by the Spanish Ministerio de Economia y Competitividad through the project rsf. DPI 2011-26771-C02-01. The authors are grateful for the given support. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Applied Energy es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Analysis es_ES
dc.subject Optimization es_ES
dc.subject Subcritical es_ES
dc.subject Two-stage es_ES
dc.subject Vapor injection es_ES
dc.subject Heat pump es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Analysis and optimization of subcritical two-stage vapor injection heat pump systems es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.apenergy.2014.02.066
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//DPI2011-26771-C02-01/ES/ESTUDIO DE EVAPORADORES Y CONDENSADORES BASADOS EN TECNOLOGIA DE MINICANALES PARA SU APLICACION EN EQUIPOS DE AIRE ACONDICIONADO, REFRIGERACION Y BOMBA DE CALOR ESTACIONARIOS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ingeniería Energética - Institut d'Enginyeria Energètica es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Redón Climent, A.; Navarro Peris, E.; Pitarch, M.; Gonzálvez Maciá, J.; Corberán Salvador, JM. (2014). Analysis and optimization of subcritical two-stage vapor injection heat pump systems. Applied Energy. 124:231-240. https://doi.org/10.1016/j.apenergy.2014.02.066 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/doi:10.1016/j.apenergy.2014.02.066 es_ES
dc.description.upvformatpinicio 231 es_ES
dc.description.upvformatpfin 240 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 124 es_ES
dc.relation.senia 266686
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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