Cyclic scheduling of pulp digesters with integrated heating tasks
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/2577 |
Resumo: | This paper addresses a multistage batch plant scheduling problem under energy constraints. These reflect the limited availability of a thermal heating utility that is shared among parallel digesters of different capacities for the production of pulp. Depending on the processing sequence, more or less steam will be available for a given digester, which will affect the duration of its heating stage and the overall cycle time. Such integrated heating tasks resemble direct heat integration, which has been addressed through models based on generic frameworks for process representation (e.g., State-Task Network, Resource-Task Network, State-Sequence Network) and relying on a single time grid, either discrete or continuous. A new multiple time grid continuous-time model is now proposed where the complex energy constraints are derived from the higher level modeling framework that is Generalized Disjunctive Programming. The results show a considerable better performance compared to RTN discrete and continuous-time formulations, due to a substantially lower integrality gap and model size. |
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Cyclic scheduling of pulp digesters with integrated heating tasksCyclic schedulingIndustrial applicationsHeat integrationThis paper addresses a multistage batch plant scheduling problem under energy constraints. These reflect the limited availability of a thermal heating utility that is shared among parallel digesters of different capacities for the production of pulp. Depending on the processing sequence, more or less steam will be available for a given digester, which will affect the duration of its heating stage and the overall cycle time. Such integrated heating tasks resemble direct heat integration, which has been addressed through models based on generic frameworks for process representation (e.g., State-Task Network, Resource-Task Network, State-Sequence Network) and relying on a single time grid, either discrete or continuous. A new multiple time grid continuous-time model is now proposed where the complex energy constraints are derived from the higher level modeling framework that is Generalized Disjunctive Programming. The results show a considerable better performance compared to RTN discrete and continuous-time formulations, due to a substantially lower integrality gap and model size.ACS Publications - American Chemical SocietyRepositório do LNEGCastro, PedroRodrigues, DjêideMatos, Henrique A.2015-01-13T17:17:29Z2014-01-01T00:00:00Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2577engCastro, P.M.; Rodrigues, D.; Matos, H.A. - Cyclic scheduling of pulp digesters with integrated heating tasks. In: Industrial and Engineering Chemistry Research, 2014, Vol. 53, p. 17098-171110888-5885info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:27:40Zoai:repositorio.lneg.pt:10400.9/2577Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:33.336138Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Cyclic scheduling of pulp digesters with integrated heating tasks |
title |
Cyclic scheduling of pulp digesters with integrated heating tasks |
spellingShingle |
Cyclic scheduling of pulp digesters with integrated heating tasks Castro, Pedro Cyclic scheduling Industrial applications Heat integration |
title_short |
Cyclic scheduling of pulp digesters with integrated heating tasks |
title_full |
Cyclic scheduling of pulp digesters with integrated heating tasks |
title_fullStr |
Cyclic scheduling of pulp digesters with integrated heating tasks |
title_full_unstemmed |
Cyclic scheduling of pulp digesters with integrated heating tasks |
title_sort |
Cyclic scheduling of pulp digesters with integrated heating tasks |
author |
Castro, Pedro |
author_facet |
Castro, Pedro Rodrigues, Djêide Matos, Henrique A. |
author_role |
author |
author2 |
Rodrigues, Djêide Matos, Henrique A. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Castro, Pedro Rodrigues, Djêide Matos, Henrique A. |
dc.subject.por.fl_str_mv |
Cyclic scheduling Industrial applications Heat integration |
topic |
Cyclic scheduling Industrial applications Heat integration |
description |
This paper addresses a multistage batch plant scheduling problem under energy constraints. These reflect the limited availability of a thermal heating utility that is shared among parallel digesters of different capacities for the production of pulp. Depending on the processing sequence, more or less steam will be available for a given digester, which will affect the duration of its heating stage and the overall cycle time. Such integrated heating tasks resemble direct heat integration, which has been addressed through models based on generic frameworks for process representation (e.g., State-Task Network, Resource-Task Network, State-Sequence Network) and relying on a single time grid, either discrete or continuous. A new multiple time grid continuous-time model is now proposed where the complex energy constraints are derived from the higher level modeling framework that is Generalized Disjunctive Programming. The results show a considerable better performance compared to RTN discrete and continuous-time formulations, due to a substantially lower integrality gap and model size. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2014-01-01T00:00:00Z 2015-01-13T17:17:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.9/2577 |
url |
http://hdl.handle.net/10400.9/2577 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Castro, P.M.; Rodrigues, D.; Matos, H.A. - Cyclic scheduling of pulp digesters with integrated heating tasks. In: Industrial and Engineering Chemistry Research, 2014, Vol. 53, p. 17098-17111 0888-5885 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
ACS Publications - American Chemical Society |
publisher.none.fl_str_mv |
ACS Publications - American Chemical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799130220730515456 |