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Influence of the superheat associated to a semihermetic compressor of a transcritical CO2 refrigeration plant.

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Influence of the superheat associated to a semihermetic compressor of a transcritical CO2 refrigeration plant.

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dc.contributor.author Sanchez, D. es_ES
dc.contributor.author Torrella Alcaraz, Enrique es_ES
dc.contributor.author Cabello, R. es_ES
dc.contributor.author Llopis, R. es_ES
dc.date.accessioned 2020-04-06T08:57:30Z
dc.date.available 2020-04-06T08:57:30Z
dc.date.issued 2010 es_ES
dc.identifier.issn 1359-4311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/140247
dc.description.abstract [EN] This work evaluates, from an energetic point of view. the effects of the superheat caused in the refrigerant by the electric motor cooling (SHsc) in a semihermetic compressor installed in an experimental refrigerating plant, which operates with CO2 as the working fluid in transcritical conditions. The analysis is based on 84 experimental tests which cover a wide range of operating conditions of the plant: three evaporating levels (0, -10, -17 degrees C) at four compressor speeds (1150,1300,1450, 1600 rpm) over a range of discharge pressures from 74.2 to 104.9 bar. The paper presents the empirical model of the compressor and its validation with the experimental measurements, which allows the behaviour of the facility to be calculated with prediction errors below 5%. With the model, the effect of the SHsc on the energy efficiency of the plant is evaluated by comparing the actual performance of the facility with the simulated behaviour of the plant without considering the SHsc produced by the semihermetic compressor. The maximum estimated reductions, due to the SHsc of the compressor, are a 20% in cooling capacity and a 23% in COP. es_ES
dc.description.sponsorship The authors are indebted to Frost-Trol S.A. (www.frost-trol. com) and the Spanish Ministry of Education and Science for economic support (ENE2006-09972/CON) and for the Grant BES-2007-16820. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MEC/ENE2006-09972/CON es_ES
dc.relation MEC/BES-2007-16820 es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject CO2 es_ES
dc.subject Semihermetic compressor es_ES
dc.subject Superheat es_ES
dc.subject Energy efficiency es_ES
dc.subject Transcritical cycle es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Influence of the superheat associated to a semihermetic compressor of a transcritical CO2 refrigeration plant. es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2009.09.008 es_ES
dc.rights.accessRights Cerrado es_ES
dc.description.bibliographicCitation Sanchez, D.; Torrella Alcaraz, E.; Cabello, R.; Llopis, R. (2010). Influence of the superheat associated to a semihermetic compressor of a transcritical CO2 refrigeration plant. Applied Thermal Engineering. 30(4):302-309. https://doi.org/10.1016/j.applthermaleng.2009.09.008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.applthermaleng.2009.09.008 es_ES
dc.description.upvformatpinicio 302 es_ES
dc.description.upvformatpfin 309 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 30 es_ES
dc.description.issue 4 es_ES
dc.relation.pasarela S\39678 es_ES
dc.contributor.funder Ministerio de Educación y Ciencia es_ES


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