Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ambiente construído (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000200261 |
Resumo: | Abstract The objective of this study is to analyze the energy performance of two types of water-cooled air conditioning systems, variable air volume (VAV) and variable refrigerant flow (VRF), in terms of their cooling energy use through building simulation. These systems were designed to operate in an office building located in the city of Florianópolis, Brazil. The analysis involved the application of two building use schedules: a) constant and b) variable. Moreover, an analysis of the coefficient of performance (COP) and partial load ratio (PLR), and the percentage of operating hours for each range of cooling COP and PLR for each air conditioning system, allowed the system cooling efficiency to be assessed and the results to be related to the annual energy consumption. The coefficient of performance of VAV and VRF is 6.7 and 5.0, respectively, but the VRF system presented the lowest energy consumption for both schedules. The difference in the cooling energy consumption values for the VRF and VAV systems, for the variable schedule compared with the constant schedule, is mainly influenced by the partial load performance during the hottest period of the year. |
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Ambiente construído (Online) |
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Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of FlorianópolisCooling Energy PerformanceBuilding Energy SimulationVAVVRFAbstract The objective of this study is to analyze the energy performance of two types of water-cooled air conditioning systems, variable air volume (VAV) and variable refrigerant flow (VRF), in terms of their cooling energy use through building simulation. These systems were designed to operate in an office building located in the city of Florianópolis, Brazil. The analysis involved the application of two building use schedules: a) constant and b) variable. Moreover, an analysis of the coefficient of performance (COP) and partial load ratio (PLR), and the percentage of operating hours for each range of cooling COP and PLR for each air conditioning system, allowed the system cooling efficiency to be assessed and the results to be related to the annual energy consumption. The coefficient of performance of VAV and VRF is 6.7 and 5.0, respectively, but the VRF system presented the lowest energy consumption for both schedules. The difference in the cooling energy consumption values for the VRF and VAV systems, for the variable schedule compared with the constant schedule, is mainly influenced by the partial load performance during the hottest period of the year.Associação Nacional de Tecnologia do Ambiente Construído - ANTAC2020-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000200261Ambiente Construído v.20 n.2 2020reponame:Ambiente construído (Online)instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)instacron:ANTAC10.1590/s1678-86212020000200399info:eu-repo/semantics/openAccessDuarte,Vanessa Cavalcanti PaesMelo,Ana PaulaLamberts,Robertoeng2020-05-05T00:00:00Zoai:scielo:S1678-86212020000200261Revistahttps://seer.ufrgs.br/ambienteconstruidohttps://old.scielo.br/oai/scielo-oai.php||ambienteconstruido@ufrgs.br1678-86211415-8876opendoar:2020-05-05T00:00Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)false |
dc.title.none.fl_str_mv |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
title |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
spellingShingle |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis Duarte,Vanessa Cavalcanti Paes Cooling Energy Performance Building Energy Simulation VAV VRF |
title_short |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
title_full |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
title_fullStr |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
title_full_unstemmed |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
title_sort |
Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis |
author |
Duarte,Vanessa Cavalcanti Paes |
author_facet |
Duarte,Vanessa Cavalcanti Paes Melo,Ana Paula Lamberts,Roberto |
author_role |
author |
author2 |
Melo,Ana Paula Lamberts,Roberto |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Duarte,Vanessa Cavalcanti Paes Melo,Ana Paula Lamberts,Roberto |
dc.subject.por.fl_str_mv |
Cooling Energy Performance Building Energy Simulation VAV VRF |
topic |
Cooling Energy Performance Building Energy Simulation VAV VRF |
description |
Abstract The objective of this study is to analyze the energy performance of two types of water-cooled air conditioning systems, variable air volume (VAV) and variable refrigerant flow (VRF), in terms of their cooling energy use through building simulation. These systems were designed to operate in an office building located in the city of Florianópolis, Brazil. The analysis involved the application of two building use schedules: a) constant and b) variable. Moreover, an analysis of the coefficient of performance (COP) and partial load ratio (PLR), and the percentage of operating hours for each range of cooling COP and PLR for each air conditioning system, allowed the system cooling efficiency to be assessed and the results to be related to the annual energy consumption. The coefficient of performance of VAV and VRF is 6.7 and 5.0, respectively, but the VRF system presented the lowest energy consumption for both schedules. The difference in the cooling energy consumption values for the VRF and VAV systems, for the variable schedule compared with the constant schedule, is mainly influenced by the partial load performance during the hottest period of the year. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000200261 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000200261 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1678-86212020000200399 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Nacional de Tecnologia do Ambiente Construído - ANTAC |
publisher.none.fl_str_mv |
Associação Nacional de Tecnologia do Ambiente Construído - ANTAC |
dc.source.none.fl_str_mv |
Ambiente Construído v.20 n.2 2020 reponame:Ambiente construído (Online) instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) instacron:ANTAC |
instname_str |
Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
instacron_str |
ANTAC |
institution |
ANTAC |
reponame_str |
Ambiente construído (Online) |
collection |
Ambiente construído (Online) |
repository.name.fl_str_mv |
Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
repository.mail.fl_str_mv |
||ambienteconstruido@ufrgs.br |
_version_ |
1754209104466804736 |