Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/30705 http://doi.org/10.14393/ufu.te.2020.510 |
Resumo: | This research presents an experimental analysis among candidates substitute fluids for R410A, currently the most used refrigerant in stationary air conditioning systems and which has a high influence on environmental problems. Refrigerant, an essential part of air conditioning systems, make up the list of greenhouse gases, which causes the warming of the planet. Since the Montreal Protocol the elimination of fluids that harm the environment has been promoted. The analysis by practical tests carried out on an experimental bench collaborates to determine the R410A substitute. The experimental apparatus consists of a compressor with a cooling capacity of 17.5 kW driven by a frequency inverter, plate heat exchangers, electronic expansion valve and proper instrumentation for measuring the results. The environmental impact analysis methodology used in this work allows comparing the effect of each fluid, not only by refrigerant properties but also through energy performance, which indirectly harms the environment, associated with the primary process of electrical energy generation. During the execution of the tests, two alternative fluid was proposed, which can be added to the other fluids that have been tested by different methodologies. It can be checked that the alternative fluids underperformed when R410A in the thermodynamic results but present less environmental impact on the application of this work. The research highlights the R454B result, had the lowest overall environmental impact and proposed fluid N2, which reached similar results to the other tested refrigerants and the lowest amount of flammable fluids in its composition. |
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Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionadoExperimental analysis of alternative refrigerants to R410A in air conditioning systemsFluidos alternativosAlternative fluidsBaixo GWPLow GWPImpacto ambientalEnvironmental impactR410ACNPQ::ENGENHARIAS::ENGENHARIA MECANICA::FENOMENOS DE TRANSPORTE::TRANSFERENCIA DE CALORRefrigeraçãoAr condicionadoImpacto ambientalThis research presents an experimental analysis among candidates substitute fluids for R410A, currently the most used refrigerant in stationary air conditioning systems and which has a high influence on environmental problems. Refrigerant, an essential part of air conditioning systems, make up the list of greenhouse gases, which causes the warming of the planet. Since the Montreal Protocol the elimination of fluids that harm the environment has been promoted. The analysis by practical tests carried out on an experimental bench collaborates to determine the R410A substitute. The experimental apparatus consists of a compressor with a cooling capacity of 17.5 kW driven by a frequency inverter, plate heat exchangers, electronic expansion valve and proper instrumentation for measuring the results. The environmental impact analysis methodology used in this work allows comparing the effect of each fluid, not only by refrigerant properties but also through energy performance, which indirectly harms the environment, associated with the primary process of electrical energy generation. During the execution of the tests, two alternative fluid was proposed, which can be added to the other fluids that have been tested by different methodologies. It can be checked that the alternative fluids underperformed when R410A in the thermodynamic results but present less environmental impact on the application of this work. The research highlights the R454B result, had the lowest overall environmental impact and proposed fluid N2, which reached similar results to the other tested refrigerants and the lowest amount of flammable fluids in its composition.Tese (Doutorado)Este trabalho apresenta uma análise experimental entre candidatos a fluidos substitutos do R410A, atualmente o refrigerante mais utilizado em sistemas de ar condicionado estacionário e que possui alta influência na problemática ambiental. Os fluidos refrigerantes, parte essencial do ar condicionado, compõem a lista de gases causadores do efeito estufa, que provoca o aquecimento do planeta. Desde o protocolo de Montreal, há fomento para eliminação de fluidos que prejudicam o meio ambiente. A análise por meio de testes práticos realizados em uma bancada experimental colabora na determinação do sucessor do R410A. O aparato experimental é composto por um compressor com capacidade de refrigeração de 17,5 kW acionado por inversor de frequência, trocadores de calor a placa, válvula de expansão eletrônica e instrumentação adequada para mensuração dos resultados. A metodologia de análise de impacto ambiental utilizada neste trabalho permite comparar o efeito de cada fluido, não apenas pelo prisma das propriedades do refrigerante, mas também por meio do desempenho energético, o qual prejudica o meio ambiente de forma indireta, associado ao processo primário de geração de energia elétrica. Durante a execução dos testes foram elaboradas propostas de fluidos alternativos, que possam se somar a outros fluidos que vêm sendo testados por diferentes metodologias. Verifica-se que os fluidos alternativos apresentam desempenho inferior ao R410A nos resultados termodinâmicos mas apresentam menor impacto ambiental para a aplicação desse trabalho. Destaca-se o resultado do R454B que apresentou o menor impacto ambiental de forma geral e o fluido proposto N2, com resultados similares aos outros candidatos e menor quantidade de fluidos inflamáveis em sua composição.Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia MecânicaBandarra Filho, Enio Pedonehttp://lattes.cnpq.br/8157552858330455Carvalho, Solidonio Rodrigues deSilva Junior, Washington Martins daPorto, Matheus PereiraMoreira, José Roberto SimõesPanato, Victor Hugo2020-12-21T14:13:53Z2020-12-21T14:13:53Z2020-07-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfPANATO, Victor Hugo. Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado. 2020. 135 f. Tese (Doutorado em Engenharia Mecânica) - Universidade Federal de Uberlândia, Uberlândia, 2020. DOI http://doi.org/10.14393/ufu.te.2020.510.https://repositorio.ufu.br/handle/123456789/30705http://doi.org/10.14393/ufu.te.2020.510porhttp://creativecommons.org/licenses/by-nc-nd/3.0/us/info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2020-12-22T06:18:16Zoai:repositorio.ufu.br:123456789/30705Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2020-12-22T06:18:16Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado Experimental analysis of alternative refrigerants to R410A in air conditioning systems |
title |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
spellingShingle |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado Panato, Victor Hugo Fluidos alternativos Alternative fluids Baixo GWP Low GWP Impacto ambiental Environmental impact R410A CNPQ::ENGENHARIAS::ENGENHARIA MECANICA::FENOMENOS DE TRANSPORTE::TRANSFERENCIA DE CALOR Refrigeração Ar condicionado Impacto ambiental |
title_short |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
title_full |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
title_fullStr |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
title_full_unstemmed |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
title_sort |
Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado |
author |
Panato, Victor Hugo |
author_facet |
Panato, Victor Hugo |
author_role |
author |
dc.contributor.none.fl_str_mv |
Bandarra Filho, Enio Pedone http://lattes.cnpq.br/8157552858330455 Carvalho, Solidonio Rodrigues de Silva Junior, Washington Martins da Porto, Matheus Pereira Moreira, José Roberto Simões |
dc.contributor.author.fl_str_mv |
Panato, Victor Hugo |
dc.subject.por.fl_str_mv |
Fluidos alternativos Alternative fluids Baixo GWP Low GWP Impacto ambiental Environmental impact R410A CNPQ::ENGENHARIAS::ENGENHARIA MECANICA::FENOMENOS DE TRANSPORTE::TRANSFERENCIA DE CALOR Refrigeração Ar condicionado Impacto ambiental |
topic |
Fluidos alternativos Alternative fluids Baixo GWP Low GWP Impacto ambiental Environmental impact R410A CNPQ::ENGENHARIAS::ENGENHARIA MECANICA::FENOMENOS DE TRANSPORTE::TRANSFERENCIA DE CALOR Refrigeração Ar condicionado Impacto ambiental |
description |
This research presents an experimental analysis among candidates substitute fluids for R410A, currently the most used refrigerant in stationary air conditioning systems and which has a high influence on environmental problems. Refrigerant, an essential part of air conditioning systems, make up the list of greenhouse gases, which causes the warming of the planet. Since the Montreal Protocol the elimination of fluids that harm the environment has been promoted. The analysis by practical tests carried out on an experimental bench collaborates to determine the R410A substitute. The experimental apparatus consists of a compressor with a cooling capacity of 17.5 kW driven by a frequency inverter, plate heat exchangers, electronic expansion valve and proper instrumentation for measuring the results. The environmental impact analysis methodology used in this work allows comparing the effect of each fluid, not only by refrigerant properties but also through energy performance, which indirectly harms the environment, associated with the primary process of electrical energy generation. During the execution of the tests, two alternative fluid was proposed, which can be added to the other fluids that have been tested by different methodologies. It can be checked that the alternative fluids underperformed when R410A in the thermodynamic results but present less environmental impact on the application of this work. The research highlights the R454B result, had the lowest overall environmental impact and proposed fluid N2, which reached similar results to the other tested refrigerants and the lowest amount of flammable fluids in its composition. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-21T14:13:53Z 2020-12-21T14:13:53Z 2020-07-31 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
PANATO, Victor Hugo. Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado. 2020. 135 f. Tese (Doutorado em Engenharia Mecânica) - Universidade Federal de Uberlândia, Uberlândia, 2020. DOI http://doi.org/10.14393/ufu.te.2020.510. https://repositorio.ufu.br/handle/123456789/30705 http://doi.org/10.14393/ufu.te.2020.510 |
identifier_str_mv |
PANATO, Victor Hugo. Análise experimental de fluidos refrigerantes alternativos ao R410A em sistema de ar condicionado. 2020. 135 f. Tese (Doutorado em Engenharia Mecânica) - Universidade Federal de Uberlândia, Uberlândia, 2020. DOI http://doi.org/10.14393/ufu.te.2020.510. |
url |
https://repositorio.ufu.br/handle/123456789/30705 http://doi.org/10.14393/ufu.te.2020.510 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/3.0/us/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/3.0/us/ |
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openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Mecânica |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Mecânica |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
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Universidade Federal de Uberlândia (UFU) |
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UFU |
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UFU |
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Repositório Institucional da UFU |
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Repositório Institucional da UFU |
repository.name.fl_str_mv |
Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
diinf@dirbi.ufu.br |
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