Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis

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...

Full description

Saved in:

Bibliographic Details
Main Authors:	Duarte, Vanessa Paes, Melo, Ana Paula, Lamberts, Roberto
Format:	Online
Language:	eng
Published:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2020
Online Access:	https://seer.ufrgs.br/ambienteconstruido/article/view/91109
Tags:	Add Tag No Tags, Be the first to tag this record!

id	ojs-article-91109
record_format	ojs
spelling	ojs-article-911092020-05-09T13:01:22Z Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis Duarte, Vanessa Paes Melo, Ana Paula Lamberts, Roberto Cooling Energy Performance; Building Energy Simulation; VAV; VRF 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. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído CAPES, CNPQ 2020-05-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/91109 Ambiente Construído; v. 20, n. 2 (2020); 261-283 Ambiente Construído; v. 20, n. 2 (2020); 261-283 Ambiente Construído; v. 20, n. 2 (2020); 261-283 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/91109/56951 https://seer.ufrgs.br/ambienteconstruido/article/downloadSuppFile/91109/49663 Direitos autorais 2020 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	eng
format	Online
author	Duarte, Vanessa Paes Melo, Ana Paula Lamberts, Roberto
spellingShingle	Duarte, Vanessa Paes Melo, Ana Paula Lamberts, Roberto Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis
author_facet	Duarte, Vanessa Paes Melo, Ana Paula Lamberts, Roberto
author_sort	Duarte, Vanessa Paes
title	Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis
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
description	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.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2020
url	https://seer.ufrgs.br/ambienteconstruido/article/view/91109
work_keys_str_mv	AT duartevanessapaes assessingtheenergyperformanceofvavandvrfairconditioningsystemsinanofficebuildinglocatedinthecityofflorianopolis AT meloanapaula assessingtheenergyperformanceofvavandvrfairconditioningsystemsinanofficebuildinglocatedinthecityofflorianopolis AT lambertsroberto assessingtheenergyperformanceofvavandvrfairconditioningsystemsinanofficebuildinglocatedinthecityofflorianopolis
_version_	1709370545050484736

Assessing the energy performance of VAV and VRF air conditioning systems in an office building located in the city of Florianópolis

Similar Items