Flows and systems disaggregation for thermoeconomic modeling in thermal system analysis

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dc.contributor.advisor-co1Lourenço, Atílio Barbosa
dc.contributor.advisor-co1IDhttps://orcid.org/0000-0003-3375-6237
dc.contributor.advisor-co1Latteshttp://lattes.cnpq.br/5684849692205161
dc.contributor.advisor-co2Serra de Renobales, Luis María
dc.contributor.advisor-co2IDhttps://orcid.org/0000-0002-5161-7209
dc.contributor.advisor-co2Latteshttp://lattes.cnpq.br/
dc.contributor.advisor-co3Lozano Serrano, Miguel Ángel
dc.contributor.advisor-co3IDhttps://orcid.org/0000-0002-4411-9834
dc.contributor.advisor-co3Latteshttp://lattes.cnpq.br/
dc.contributor.advisor1Santos, José Joaquim Conceição Soares
dc.contributor.advisor1IDhttps://orcid.org/0000-0003-3695-2014
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/6666040476009642
dc.contributor.authorSantos, Rodrigo Guedes dos
dc.contributor.authorIDhttps://orcid.org/0000-0003-3659-7737
dc.contributor.authorLatteshttp://lattes.cnpq.br/1710594961530586
dc.contributor.referee1Martins, Márcio Ferreira
dc.contributor.referee1IDhttps://orcid.org/0000-0002-3023-222X
dc.contributor.referee1Latteshttp://lattes.cnpq.br/7325983059020104
dc.contributor.referee2Silva, Julio Augusto Mendes da
dc.contributor.referee2IDhttps://orcid.org/0000-0002-2006-8462
dc.contributor.referee2Latteshttp://lattes.cnpq.br/3724171990188048
dc.contributor.referee3Palacios Bereche, Reynaldo
dc.contributor.referee3IDhttps://orcid.org/0000-0002-4810-8868
dc.contributor.referee3Latteshttp://lattes.cnpq.br/4511646102728382
dc.contributor.referee4Pina, Eduardo Antonio
dc.contributor.referee4IDhttps://orcid.org/0000-0001-8350-6485
dc.contributor.referee4Latteshttp://lattes.cnpq.br/2218436088598565
dc.date.accessioned2025-02-06T18:59:54Z
dc.date.available2025-02-06T18:59:54Z
dc.date.issued2024-11-08
dc.description.abstractThermoeconomics is an interdisciplinary field that integrates concepts from thermodynamics and economics, providing insights that extend beyond traditional energy and economic analyses. A critical aspect of thermoeconomic modeling is the determination of the productive structure. Exergy serves as an appropriate thermodynamic parameter for cost allocation, incorporating the first and second laws of thermodynamics, assessing the quality of energy flows, and identifying subsystem irreversibilities. However, specific applications require the disaggregation of exergy. As the field evolves, the study of complex thermal systems reveals a growing number of plants with diverse equipment and challenges related to the isolation of dissipative equipment, waste cost allocation, and environmental considerations. Various thermoeconomic methodologies focused on the disaggregation of physical exergy have emerged; however, none have successfully addressed the simultaneous isolation of dissipative equipment and waste cost allocation while maintaining low model complexity. Consequently, these issues remain subjects for further exploration. This study presents ideas related to the disaggregation of flows and systems as approaches to address the identified problems. The A&F Model introduces a novel methodology for disaggregating physical exergy into two components: Helmholtz energy and flow work. Furthermore, the study explores a new approach to system disaggregation, in which a thermal system is divided into smaller subsystems that, when recombined, recreate the original system. The research conducts thermodynamic and thermoeconomic analyses to present and validate the A&F Model, assessing the model's ability to manage dissipative equipment, allocate waste costs, and maintain low complexity across various thermal systems. Concurrently, the investigation of system disaggregation examines the decomposition of the steam cycle of a sugarcane cogeneration plant into subcycles, revealing significant advantages. Integrating energy billing optimization and thermoeconomic analysis in this context determines the plant's optimal operational mode while elucidating the cost formation processes of internal products, such as refinery heat, process heat, and electricity consumption. In conclusion, the ideas presented in this thesis introduce innovative approaches within thermoeconomics, primarily through disaggregation methods for flows and systems. These contributions enhance the understanding of thermal systems' cost formation processes, facilitate dissipative equipment isolation, address waste cost allocation, and maintain low modeling complexity. Furthermore, this research significantly contributes to the application of thermoeconomics in analyzing variations in market prices within cogeneration, thereby broadening the perspective on cost allocation in thermoeconomic analyses
dc.description.resumoNão disponibilizado
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.formatText
dc.identifier.urihttp://repositorio.ufes.br/handle/10/18316
dc.languagepor
dc.language.isoen
dc.publisherUniversidade Federal do Espírito Santo
dc.publisher.countryBR
dc.publisher.courseDoutorado em Engenharia Mecânica
dc.publisher.departmentCentro Tecnológico
dc.publisher.initialsUFES
dc.publisher.programPrograma de Pós-Graduação em Engenharia Mecânica
dc.rightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectThermoeconomics
dc.subjectSystems disaggregation
dc.subjectFlows disaggregation
dc.subjectDissipative equipment
dc.subjectWaste cost allocation
dc.subjectModel complexity
dc.subjectTermoeconomia
dc.subjectDesagregação de sistemas
dc.subjectDesagregação de fluxos
dc.subjectEquipamento dissipativo
dc.subjectAlocação de custos de resíduos
dc.subject.cnpqEngenharia Mecânica
dc.titleFlows and systems disaggregation for thermoeconomic modeling in thermal system analysis
dc.typedoctoralThesis
foaf.mboxrodrigo.guedes@ifes.edu.br
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