Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000300173 |
Resumo: | ABSTRACT: Ventilation systems used in swine facilities deserve to be studied because they directly affect productivity in the pig farming sector. Bearing this in mind the uniformity of air distribution and temperature is essential to animal welfare in this breeding environment. Thus, the purpose of this study was to identify whether changes in air entrances and exhaust fan positioning could influence air velocity and temperature distribution. The experimental data were collected in a commercial full-scale sow facility. Validation was carried out by comparing the simulated air temperatures and data measured in the field. These results showed agreement between data with a maximum relative error of approximately 3 %. The real settings showed a gradual increase in the air velocity from the air entrances and dead zones due to the change in airflow direction. There was no difference when the positioning of the exhaust fans was altered or was maintained in the original air entrances. The proposed arrangement with only one air inlet reduced the areas of low air movement as a consequence of the change in flow direction. Furthermore, the variables have the same pattern along the transversal plane. The simulations showed that the position of the air inlets had a higher influence on temperature distribution. |
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Scientia Agrícola (Online) |
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Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation systemCFDairflow patterntemperature distributionABSTRACT: Ventilation systems used in swine facilities deserve to be studied because they directly affect productivity in the pig farming sector. Bearing this in mind the uniformity of air distribution and temperature is essential to animal welfare in this breeding environment. Thus, the purpose of this study was to identify whether changes in air entrances and exhaust fan positioning could influence air velocity and temperature distribution. The experimental data were collected in a commercial full-scale sow facility. Validation was carried out by comparing the simulated air temperatures and data measured in the field. These results showed agreement between data with a maximum relative error of approximately 3 %. The real settings showed a gradual increase in the air velocity from the air entrances and dead zones due to the change in airflow direction. There was no difference when the positioning of the exhaust fans was altered or was maintained in the original air entrances. The proposed arrangement with only one air inlet reduced the areas of low air movement as a consequence of the change in flow direction. Furthermore, the variables have the same pattern along the transversal plane. The simulations showed that the position of the air inlets had a higher influence on temperature distribution.Escola Superior de Agricultura "Luiz de Queiroz"2018-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000300173Scientia Agricola v.75 n.3 2018reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2016-0110info:eu-repo/semantics/openAccessSousa Junior,Vilmar Rodrigues deSabino,Luana AraújoMoura,Daniella Jorge deNunhez,José RobertoSonoda,Lilia ThaysSilva,Alexandre OliveiraPrada,Ronald JaimesFontoura,Diener Volpin RibeiroSeber,Rogério Torreseng2018-01-29T00:00:00Zoai:scielo:S0103-90162018000300173Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2018-01-29T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
title |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
spellingShingle |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system Sousa Junior,Vilmar Rodrigues de CFD airflow pattern temperature distribution |
title_short |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
title_full |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
title_fullStr |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
title_full_unstemmed |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
title_sort |
Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system |
author |
Sousa Junior,Vilmar Rodrigues de |
author_facet |
Sousa Junior,Vilmar Rodrigues de Sabino,Luana Araújo Moura,Daniella Jorge de Nunhez,José Roberto Sonoda,Lilia Thays Silva,Alexandre Oliveira Prada,Ronald Jaimes Fontoura,Diener Volpin Ribeiro Seber,Rogério Torres |
author_role |
author |
author2 |
Sabino,Luana Araújo Moura,Daniella Jorge de Nunhez,José Roberto Sonoda,Lilia Thays Silva,Alexandre Oliveira Prada,Ronald Jaimes Fontoura,Diener Volpin Ribeiro Seber,Rogério Torres |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Sousa Junior,Vilmar Rodrigues de Sabino,Luana Araújo Moura,Daniella Jorge de Nunhez,José Roberto Sonoda,Lilia Thays Silva,Alexandre Oliveira Prada,Ronald Jaimes Fontoura,Diener Volpin Ribeiro Seber,Rogério Torres |
dc.subject.por.fl_str_mv |
CFD airflow pattern temperature distribution |
topic |
CFD airflow pattern temperature distribution |
description |
ABSTRACT: Ventilation systems used in swine facilities deserve to be studied because they directly affect productivity in the pig farming sector. Bearing this in mind the uniformity of air distribution and temperature is essential to animal welfare in this breeding environment. Thus, the purpose of this study was to identify whether changes in air entrances and exhaust fan positioning could influence air velocity and temperature distribution. The experimental data were collected in a commercial full-scale sow facility. Validation was carried out by comparing the simulated air temperatures and data measured in the field. These results showed agreement between data with a maximum relative error of approximately 3 %. The real settings showed a gradual increase in the air velocity from the air entrances and dead zones due to the change in airflow direction. There was no difference when the positioning of the exhaust fans was altered or was maintained in the original air entrances. The proposed arrangement with only one air inlet reduced the areas of low air movement as a consequence of the change in flow direction. Furthermore, the variables have the same pattern along the transversal plane. The simulations showed that the position of the air inlets had a higher influence on temperature distribution. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-01 |
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=S0103-90162018000300173 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000300173 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2016-0110 |
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 |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.75 n.3 2018 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936464696082432 |