Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1177/16878140211034609 http://hdl.handle.net/11449/233371 |
Resumo: | This paper states that there might have around 1000 small size business jets (until nine occupants) flying across the world equipped with flow control and regulating shut-off valves that uses hot wire anemometer devices to regulate massflow rate from the bleed airflow to supply the air-conditioning and pressurization systems. However, these valves present low reliability in the field. The purpose of this paper is to evaluate the implications of a flow control and regulating shut-off valve with a non-intrusive airflow measurer device under the perspective of fluid mechanics. The Venturi technology that is commonly used technology, given its construction simplicity, precision, and broad use in the industry, is selected to substitute the flow control and regulating shut-off valves with hot wire anemometer of the mentioned small size business jets applications. This paper has adopted a numeric simulation approach utilizing the ANSYS-CFX computational fluid dynamics software to verify both the differential pressure at the Venturi device and its correspondent mass flow rate to supply the air conditioning systems of some small size business jets, considering the mass-flow rate as requested by the FAA certification requirement (0.55 lb/min per occupant). This paper shows that a mass-flow rate control and regulating shut-off valve with a Venturi device, of 1 inch and β of 0.67, is compliant with the minimum fresh air flow requested by the FAA certification requirement to operate in some small size business jets. Besides that, the software ANSYS-CFX is also effective to support the engineering analysis of flow field characteristics inherent to the applications of internal compressible flow. The numeric simulation utilizing the ANSYS-CFX computational fluid dynamics software outlined herein can lay the basis for further research related to the design of a flow control and regulating shut-off valves with a Venturi device. |
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Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ductsAnemometerANSYSVenturiThis paper states that there might have around 1000 small size business jets (until nine occupants) flying across the world equipped with flow control and regulating shut-off valves that uses hot wire anemometer devices to regulate massflow rate from the bleed airflow to supply the air-conditioning and pressurization systems. However, these valves present low reliability in the field. The purpose of this paper is to evaluate the implications of a flow control and regulating shut-off valve with a non-intrusive airflow measurer device under the perspective of fluid mechanics. The Venturi technology that is commonly used technology, given its construction simplicity, precision, and broad use in the industry, is selected to substitute the flow control and regulating shut-off valves with hot wire anemometer of the mentioned small size business jets applications. This paper has adopted a numeric simulation approach utilizing the ANSYS-CFX computational fluid dynamics software to verify both the differential pressure at the Venturi device and its correspondent mass flow rate to supply the air conditioning systems of some small size business jets, considering the mass-flow rate as requested by the FAA certification requirement (0.55 lb/min per occupant). This paper shows that a mass-flow rate control and regulating shut-off valve with a Venturi device, of 1 inch and β of 0.67, is compliant with the minimum fresh air flow requested by the FAA certification requirement to operate in some small size business jets. Besides that, the software ANSYS-CFX is also effective to support the engineering analysis of flow field characteristics inherent to the applications of internal compressible flow. The numeric simulation utilizing the ANSYS-CFX computational fluid dynamics software outlined herein can lay the basis for further research related to the design of a flow control and regulating shut-off valves with a Venturi device.Mechanical Engineering Post Graduation Department University of Taubate – UNITAUEnergy Department Sao Paulo State University – UNESPElectrical Engineering Department Sao Paulo State University – UNESPEnergy Department Sao Paulo State University – UNESPElectrical Engineering Department Sao Paulo State University – UNESPUniversity of Taubate – UNITAUUniversidade Estadual Paulista (UNESP)Testi, AndreiMarcelino, Marcio Abud [UNESP]Lotufo, Francisco Antonio [UNESP]de Souza, Teófilo Miguel [UNESP]2022-05-01T08:15:10Z2022-05-01T08:15:10Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1177/16878140211034609Advances in Mechanical Engineering, v. 13, n. 8, 2021.1687-81401687-8132http://hdl.handle.net/11449/23337110.1177/168781402110346092-s2.0-85112159325Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAdvances in Mechanical Engineeringinfo:eu-repo/semantics/openAccess2024-07-01T20:12:20Zoai:repositorio.unesp.br:11449/233371Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-07-01T20:12:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
title |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
spellingShingle |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts Testi, Andrei Anemometer ANSYS Venturi |
title_short |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
title_full |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
title_fullStr |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
title_full_unstemmed |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
title_sort |
Initial study of an alternative technology aimed at measuring and controlling the flow rate in air conditioning ducts |
author |
Testi, Andrei |
author_facet |
Testi, Andrei Marcelino, Marcio Abud [UNESP] Lotufo, Francisco Antonio [UNESP] de Souza, Teófilo Miguel [UNESP] |
author_role |
author |
author2 |
Marcelino, Marcio Abud [UNESP] Lotufo, Francisco Antonio [UNESP] de Souza, Teófilo Miguel [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
University of Taubate – UNITAU Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Testi, Andrei Marcelino, Marcio Abud [UNESP] Lotufo, Francisco Antonio [UNESP] de Souza, Teófilo Miguel [UNESP] |
dc.subject.por.fl_str_mv |
Anemometer ANSYS Venturi |
topic |
Anemometer ANSYS Venturi |
description |
This paper states that there might have around 1000 small size business jets (until nine occupants) flying across the world equipped with flow control and regulating shut-off valves that uses hot wire anemometer devices to regulate massflow rate from the bleed airflow to supply the air-conditioning and pressurization systems. However, these valves present low reliability in the field. The purpose of this paper is to evaluate the implications of a flow control and regulating shut-off valve with a non-intrusive airflow measurer device under the perspective of fluid mechanics. The Venturi technology that is commonly used technology, given its construction simplicity, precision, and broad use in the industry, is selected to substitute the flow control and regulating shut-off valves with hot wire anemometer of the mentioned small size business jets applications. This paper has adopted a numeric simulation approach utilizing the ANSYS-CFX computational fluid dynamics software to verify both the differential pressure at the Venturi device and its correspondent mass flow rate to supply the air conditioning systems of some small size business jets, considering the mass-flow rate as requested by the FAA certification requirement (0.55 lb/min per occupant). This paper shows that a mass-flow rate control and regulating shut-off valve with a Venturi device, of 1 inch and β of 0.67, is compliant with the minimum fresh air flow requested by the FAA certification requirement to operate in some small size business jets. Besides that, the software ANSYS-CFX is also effective to support the engineering analysis of flow field characteristics inherent to the applications of internal compressible flow. The numeric simulation utilizing the ANSYS-CFX computational fluid dynamics software outlined herein can lay the basis for further research related to the design of a flow control and regulating shut-off valves with a Venturi device. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-05-01T08:15:10Z 2022-05-01T08:15:10Z |
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://dx.doi.org/10.1177/16878140211034609 Advances in Mechanical Engineering, v. 13, n. 8, 2021. 1687-8140 1687-8132 http://hdl.handle.net/11449/233371 10.1177/16878140211034609 2-s2.0-85112159325 |
url |
http://dx.doi.org/10.1177/16878140211034609 http://hdl.handle.net/11449/233371 |
identifier_str_mv |
Advances in Mechanical Engineering, v. 13, n. 8, 2021. 1687-8140 1687-8132 10.1177/16878140211034609 2-s2.0-85112159325 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Advances in Mechanical Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649650987630592 |