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dc.contributorUniversitat Ramon Llull. IQS
dc.contributor.authorLlovell Ferret, Félix Lluís
dc.contributor.authorGarrido, José Matías
dc.contributor.authorQuinteros-Lama, Héctor
dc.contributor.authorGonzález, Johan
dc.date.accessioned2021-06-30T07:08:49Z
dc.date.accessioned2023-07-13T05:45:59Z
dc.date.available2021-06-30T07:08:49Z
dc.date.available2023-07-13T05:45:59Z
dc.date.issued2020-08
dc.identifier.urihttp://hdl.handle.net/20.500.14342/1118
dc.description.abstractTranscritical cycles are a successful and probed system in engineering practices, particularly in refrigeration. Therefore, their optimization is a critical factor in the design, control, and operation in order to maximize the coefficient of performance (COP) and to find the optimal pressure operating conditions. Often, this labor is faced using empirically based correlations, which are limited by their origin and the configuration of the cycle. In this regard, this work is devoted to the development of a rigorous and general framework in order to characterize the behavior and performance of a simple transcritical refrigeration cycle. An accurate mathematical expression for the COP depending on the compressor efficiency and the properties of the working fluid is presented. The expression proposed has no approximations and is relevant to any model depending on the Helmholtz variable group, being easy to combine with any equation of state (EOS), regardless of its complexity. From this expression, it is possible to derive a simple control function for transcritical refrigeration cycles. As an example, the expression is combined with the Span–Wagner EOS, presenting a comprehensive application for a transcritical cycle using CO2 and N2O as working fluids.eng
dc.format.extent10 p.cat
dc.language.isoengcat
dc.publisherAmerican Chemical Societycat
dc.relation.ispartofACS Omega. Vol.5, n.30 (2020) p.19217-19226cat
dc.rightsAttribution 4.0 International
dc.rights© American Chemical Society
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherÒxidscat
dc.subject.otherFluidscat
dc.subject.otherEntalpiacat
dc.subject.otherOxidescat
dc.subject.otherCompressioncat
dc.subject.otherFluidscat
dc.subject.otherOptimizationcat
dc.subject.otherEnthalpycat
dc.titleAccurate and model-free control function for a single stage transcritical refrigerator cyclecat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc54
dc.identifier.doihttps://doi.org/10.1021/acsomega.0c02681cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/CONICYT/21180578cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/FONDECYT/11180103cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/FONDECYT/11170111cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/URL i La Caixa/Intensificació recerca PDI/2019-URL-IR1rQ-011cat


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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