Computational simulation employment to energetic efficiency improvement at a refrigeration system

Detalhes bibliográficos
Autor(a) principal: Jr, Ivoni C
Data de Publicação: 2019
Outros Autores: Aguiar, Danilo Barreto de, Germano, Sandro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Interdisciplinar de Pesquisa em Engenharia
Texto Completo: https://periodicos.unb.br/index.php/ripe/article/view/19244
Resumo: Aspects in relationship to the maximization of energy efficiency in industrial installation is a topic of high importance, due to actually exists onerous tariffs of electric energy and any reduction of consumption of this, result in great improvements not just for the industry, but also to the energetic matrix of the country, since large refrigeration units have a high electrical energy consumption. Moreover, with this improvements, in some cases, can be possible achieve through changes in operations conditions, reduction in the consumption of electrical energy. Thereby, this study has the objective to point action to improve the energy efficiency of a refrigeration system that uses NH3 of a refrigerated warehouse, through the use o mathematical modeling and computational simulation of the system in analyze,  utilizing the software EES (Engineering Equation Solver) as a tool to mathematical modeling and do the computational simulations. Furthermore, the electrical motors of the evaporators and condensers are drive with VSDs (variable speed drives). Thus, were evaluated different conditions of regime temperature operation and values of frequency of the VSDs, with aim of obtain the smallest electrical energy consumption, in order to meet the specific conditions of running of the installation. It was identified that the refrigeration system has some water contamination that also impact the consumption of electrical energy. This study demonstrated that without realize none structural modification the refrigeration system, is possible reduce in 9,3% the consumption of electric energy.
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spelling Computational simulation employment to energetic efficiency improvement at a refrigeration systemAplicação de simulação computacional para o aumento de eficiência energética de uma instalação frigoríficaEnergy efficiency. computational simulation. variable speed drives. industry refrigeration.Eficiência energética. simulação computacional. variadores de velocidade. refrigeração industrial.Aspects in relationship to the maximization of energy efficiency in industrial installation is a topic of high importance, due to actually exists onerous tariffs of electric energy and any reduction of consumption of this, result in great improvements not just for the industry, but also to the energetic matrix of the country, since large refrigeration units have a high electrical energy consumption. Moreover, with this improvements, in some cases, can be possible achieve through changes in operations conditions, reduction in the consumption of electrical energy. Thereby, this study has the objective to point action to improve the energy efficiency of a refrigeration system that uses NH3 of a refrigerated warehouse, through the use o mathematical modeling and computational simulation of the system in analyze,  utilizing the software EES (Engineering Equation Solver) as a tool to mathematical modeling and do the computational simulations. Furthermore, the electrical motors of the evaporators and condensers are drive with VSDs (variable speed drives). Thus, were evaluated different conditions of regime temperature operation and values of frequency of the VSDs, with aim of obtain the smallest electrical energy consumption, in order to meet the specific conditions of running of the installation. It was identified that the refrigeration system has some water contamination that also impact the consumption of electrical energy. This study demonstrated that without realize none structural modification the refrigeration system, is possible reduce in 9,3% the consumption of electric energy.Aspectos envolvendo a maximização da eficiência energética de uma instalação industrial é um tópico de grande importância, pois atualmente existem onerosas tarifas de energia elétrica e qualquer redução de consumo da mesma, resulta em grandes benefícios tanto para empresa como para a matriz energética do país, visto que unidades frigoríficas têm um grande consumo de eletricidade. Com isso, estas melhorias podem, em alguns casos, ser obtidas apenas através de modificações de condições operacionais da planta, que visam reduzir os desperdícios. Assim, este trabalho tem como objetivo apontar ações para melhoria da eficiência energética do sistema de refrigeração por NH3 de um armazém frigorífico, através do uso de modelagem matemática e simulações computacionais da planta frigorífica, utilizando o software EES (Engineering Equation Solver) como ferramenta para a modelagem matemática da planta frigorífica e realização das simulações computacionais. Além disso, o sistema de refrigeração possui motores elétricos tanto dos evaporadores como dos condensadores, acionados por inversores de frequência VSDs (Variable Speed Drive). Dessa forma, foram avaliadas diferentes condições de regime de temperaturas de operação e de valores de frequência dos VSDs, com objetivo de obter o menor consumo de energia elétrica, de modo a atender a uma condição específica de funcionamento da instalação industrial. Além disso, foi identificado que o sistema de refrigeração possui contaminação por água, que impacta no consumo de energia elétrica. O estudo realizado demonstrou que sem realizar nenhuma modificação estrutural na planta frigorífica, é possível reduzir em 9,3% o consumo de energia elétrica.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2019-01-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/1924410.26512/ripe.v5i1.19244Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 5 No. 1 (2019): Revista Interdisciplinar de Pesquisa em Engenharia - RIPE; 49-57Revista Interdisciplinar de Pesquisa em Engenharia; v. 5 n. 1 (2019): Revista Interdisciplinar de Pesquisa em Engenharia - RIPE; 49-572447-610210.26512/ripe.v5i1reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBporhttps://periodicos.unb.br/index.php/ripe/article/view/19244/20195Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenhariainfo:eu-repo/semantics/openAccessJr, Ivoni CAguiar, Danilo Barreto deGermano, Sandro2019-06-19T18:30:27Zoai:ojs.pkp.sfu.ca:article/19244Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-06-19T18:30:27Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Computational simulation employment to energetic efficiency improvement at a refrigeration system
Aplicação de simulação computacional para o aumento de eficiência energética de uma instalação frigorífica
title Computational simulation employment to energetic efficiency improvement at a refrigeration system
spellingShingle Computational simulation employment to energetic efficiency improvement at a refrigeration system
Jr, Ivoni C
Energy efficiency. computational simulation. variable speed drives. industry refrigeration.
Eficiência energética. simulação computacional. variadores de velocidade. refrigeração industrial.
title_short Computational simulation employment to energetic efficiency improvement at a refrigeration system
title_full Computational simulation employment to energetic efficiency improvement at a refrigeration system
title_fullStr Computational simulation employment to energetic efficiency improvement at a refrigeration system
title_full_unstemmed Computational simulation employment to energetic efficiency improvement at a refrigeration system
title_sort Computational simulation employment to energetic efficiency improvement at a refrigeration system
author Jr, Ivoni C
author_facet Jr, Ivoni C
Aguiar, Danilo Barreto de
Germano, Sandro
author_role author
author2 Aguiar, Danilo Barreto de
Germano, Sandro
author2_role author
author
dc.contributor.author.fl_str_mv Jr, Ivoni C
Aguiar, Danilo Barreto de
Germano, Sandro
dc.subject.por.fl_str_mv Energy efficiency. computational simulation. variable speed drives. industry refrigeration.
Eficiência energética. simulação computacional. variadores de velocidade. refrigeração industrial.
topic Energy efficiency. computational simulation. variable speed drives. industry refrigeration.
Eficiência energética. simulação computacional. variadores de velocidade. refrigeração industrial.
description Aspects in relationship to the maximization of energy efficiency in industrial installation is a topic of high importance, due to actually exists onerous tariffs of electric energy and any reduction of consumption of this, result in great improvements not just for the industry, but also to the energetic matrix of the country, since large refrigeration units have a high electrical energy consumption. Moreover, with this improvements, in some cases, can be possible achieve through changes in operations conditions, reduction in the consumption of electrical energy. Thereby, this study has the objective to point action to improve the energy efficiency of a refrigeration system that uses NH3 of a refrigerated warehouse, through the use o mathematical modeling and computational simulation of the system in analyze,  utilizing the software EES (Engineering Equation Solver) as a tool to mathematical modeling and do the computational simulations. Furthermore, the electrical motors of the evaporators and condensers are drive with VSDs (variable speed drives). Thus, were evaluated different conditions of regime temperature operation and values of frequency of the VSDs, with aim of obtain the smallest electrical energy consumption, in order to meet the specific conditions of running of the installation. It was identified that the refrigeration system has some water contamination that also impact the consumption of electrical energy. This study demonstrated that without realize none structural modification the refrigeration system, is possible reduce in 9,3% the consumption of electric energy.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.unb.br/index.php/ripe/article/view/19244
10.26512/ripe.v5i1.19244
url https://periodicos.unb.br/index.php/ripe/article/view/19244
identifier_str_mv 10.26512/ripe.v5i1.19244
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.unb.br/index.php/ripe/article/view/19244/20195
dc.rights.driver.fl_str_mv Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Programa de Pós-Graduação em Integridade de Materiais da Engenharia
publisher.none.fl_str_mv Programa de Pós-Graduação em Integridade de Materiais da Engenharia
dc.source.none.fl_str_mv Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 5 No. 1 (2019): Revista Interdisciplinar de Pesquisa em Engenharia - RIPE; 49-57
Revista Interdisciplinar de Pesquisa em Engenharia; v. 5 n. 1 (2019): Revista Interdisciplinar de Pesquisa em Engenharia - RIPE; 49-57
2447-6102
10.26512/ripe.v5i1
reponame:Revista Interdisciplinar de Pesquisa em Engenharia
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Revista Interdisciplinar de Pesquisa em Engenharia
collection Revista Interdisciplinar de Pesquisa em Engenharia
repository.name.fl_str_mv Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)
repository.mail.fl_str_mv anflor@unb.br
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