Ecological optimization of an irreversible Brayton cycle with regeneration, inter-cooling and reheating

dc.contributor.authorScalon, Vicente Luiz
dc.contributor.authorRepinaldo, Vitor Pereira
dc.contributor.authorOliveira, Santiago del Rio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-03-02T13:04:40Z
dc.date.available2016-03-02T13:04:40Z
dc.date.issued2015
dc.description.abstractA mathematical model is developed for an irreversible Brayton cycle with regeneration, inter-cooling and reheating. The irreversibility are from the thermal resistance in the heat exchangers, the pressure drops in pipes, the non-isentropic behavior in the adiabatic expansions and compressions and the heat leakage to the cold source. The cycle is optimized by maximizing the ecological function, which is achieved by the search for optimal values for the temperatures of the cycle and for the pressure ratios of the first stage compression and the first stage expansion. The advantages of using the regenerator, intercooler and reheater are presented by comparison with cycles that do not incorporate one or more of these processes. Optimization results are compared with those obtained by maximizing the power output and it is concluded that the point of maximum ecological function has major advantages with respect to the entropy generation rate and the thermal efficiency, at the cost of a small loss in power.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Bauru, Bauru, Avenida Luiz Edmundo Carrijo Coube, s/n, Vargem Limpa, CEP 17033360, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Bauru, Bauru, Avenida Luiz Edmundo Carrijo Coube, s/n, Vargem Limpa, CEP 17033360, SP, Brasil
dc.format.extent1-15
dc.identifierhttp://dx.doi.org/10.1016/j.apm.2015.02.029
dc.identifier.citationApplied Mathematical Modelling, v. 00, p. 1-15, 2015.
dc.identifier.doi10.1016/j.apm.2015.02.029
dc.identifier.issn0307-904X
dc.identifier.lattes6469406277752689
dc.identifier.lattes5267639117616583
dc.identifier.urihttp://hdl.handle.net/11449/135843
dc.language.isoeng
dc.relation.ispartofApplied Mathematical Modelling
dc.relation.ispartofjcr2.617
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectBrayton cycleen
dc.subjectEcological optimizationen
dc.subjectIntercooleren
dc.subjectRegeneratoren
dc.subjectReheaten
dc.subjectIrreversibilityen
dc.titleEcological optimization of an irreversible Brayton cycle with regeneration, inter-cooling and reheatingen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Baurupt

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