Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches

In the present work, a CFD study was developed over the 20 L sphere standard test for the characterization of flammable dust. The aim of the study was to analyze parameters of the standard test that could affect the results of the test but are not taken into account such as the turbulence, the parti...

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Autores:
Vizcaya Sánchez, Daniel Mauricio
Tipo de recurso:
Fecha de publicación:
2017
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/13892
Acceso en línea:
http://hdl.handle.net/1992/13892
Palabra clave:
Explosiones de polvo - Investigaciones - Métodos de simulación
Dinámica de fluidos computacional - Investigaciones
Ingeniería
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-nd/4.0/
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spelling Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Muñoz Giraldo, Felipevirtual::9481-1Vizcaya Sánchez, Daniel Mauricio211824a9-b9e9-4dea-8228-a47d7c3d2f6c500Ríos Ratkovich, NicolásLópez Mejía, Omar Darío2018-09-28T11:00:28Z2018-09-28T11:00:28Z2017http://hdl.handle.net/1992/13892u729696.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/In the present work, a CFD study was developed over the 20 L sphere standard test for the characterization of flammable dust. The aim of the study was to analyze parameters of the standard test that could affect the results of the test but are not taken into account such as the turbulence, the particle size and the real concentration at the ignition point. Two different approaches for the simulation were studied. First, an Euler-Lagrange coupled approach was considered for the simulation. The continuous phase was modeled with the DES turbulence model, due to its capacity to integrate two different alternatives that will make the solution more robust. For the discrete phase, a spherical particles lagrangian model was used. The material selected was micrometric wheat starch with a particle density of 610 kg/m3. The pressure of the system, the velocity fluctuation and the particle size distribution at the ignition point were validated with an experimental data set. It was found that both, experimental and numeric approaches presents the same behavior with mean absolute errors of 0.183 bar and 5.56 m/s, for pressure and mean velocity fluctuation in x-direction respectively. It was concluded that the rebound nozzle generates a homogeneous distribution of particles within the domain, except for the bottom-right quarter of the sphere where a considerably Iower particle density is presented, due to the location of the canister. However, it was also found that the concentration at the center of the sphere always remains Iower than the nominal concentration?Magíster en Ingeniería QuímicaMaestría18 hojasapplication/pdfengUniandesMaestría en Ingeniería QuímicaFacultad de IngenieríaDepartamento de Ingeniería Químicainstname:Universidad de los Andesreponame:Repositorio Institucional SénecaAnalysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approachesTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesishttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TMExplosiones de polvo - Investigaciones - Métodos de simulaciónDinámica de fluidos computacional - InvestigacionesIngenieríaPublicationhttps://scholar.google.es/citations?user=ktoFvDIAAAAJvirtual::9481-10000-0001-5045-1713virtual::9481-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000104000virtual::9481-1845be311-49a0-4724-abf5-44c1c7160f37virtual::9481-1845be311-49a0-4724-abf5-44c1c7160f37virtual::9481-1THUMBNAILu729696.pdf.jpgu729696.pdf.jpgIM Thumbnailimage/jpeg29687https://repositorio.uniandes.edu.co/bitstreams/2783bd1c-937c-454c-93b0-cd7d50172052/downloadde8a2bcbe9776860c244f5e420b472afMD55ORIGINALu729696.pdfapplication/pdf2238687https://repositorio.uniandes.edu.co/bitstreams/b92d91f7-6bd6-49e9-90f2-d0f15af45e51/download2942f39298ab478ff438a9661a375a0eMD51TEXTu729696.pdf.txtu729696.pdf.txtExtracted texttext/plain46709https://repositorio.uniandes.edu.co/bitstreams/d22d9f61-653f-482f-83dd-76cca546c98e/download6a68be128b1c105494a00c7f41d45bffMD541992/13892oai:repositorio.uniandes.edu.co:1992/138922024-03-13 13:56:46.838http://creativecommons.org/licenses/by-nc-nd/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co
dc.title.es_CO.fl_str_mv Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
title Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
spellingShingle Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
Explosiones de polvo - Investigaciones - Métodos de simulación
Dinámica de fluidos computacional - Investigaciones
Ingeniería
title_short Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
title_full Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
title_fullStr Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
title_full_unstemmed Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
title_sort Analysis of the 20 L sphere standard test for flammable dust implementing CFD and DEM computational approaches
dc.creator.fl_str_mv Vizcaya Sánchez, Daniel Mauricio
dc.contributor.advisor.none.fl_str_mv Muñoz Giraldo, Felipe
dc.contributor.author.none.fl_str_mv Vizcaya Sánchez, Daniel Mauricio
dc.contributor.jury.none.fl_str_mv Ríos Ratkovich, Nicolás
López Mejía, Omar Darío
dc.subject.keyword.es_CO.fl_str_mv Explosiones de polvo - Investigaciones - Métodos de simulación
Dinámica de fluidos computacional - Investigaciones
topic Explosiones de polvo - Investigaciones - Métodos de simulación
Dinámica de fluidos computacional - Investigaciones
Ingeniería
dc.subject.themes.none.fl_str_mv Ingeniería
description In the present work, a CFD study was developed over the 20 L sphere standard test for the characterization of flammable dust. The aim of the study was to analyze parameters of the standard test that could affect the results of the test but are not taken into account such as the turbulence, the particle size and the real concentration at the ignition point. Two different approaches for the simulation were studied. First, an Euler-Lagrange coupled approach was considered for the simulation. The continuous phase was modeled with the DES turbulence model, due to its capacity to integrate two different alternatives that will make the solution more robust. For the discrete phase, a spherical particles lagrangian model was used. The material selected was micrometric wheat starch with a particle density of 610 kg/m3. The pressure of the system, the velocity fluctuation and the particle size distribution at the ignition point were validated with an experimental data set. It was found that both, experimental and numeric approaches presents the same behavior with mean absolute errors of 0.183 bar and 5.56 m/s, for pressure and mean velocity fluctuation in x-direction respectively. It was concluded that the rebound nozzle generates a homogeneous distribution of particles within the domain, except for the bottom-right quarter of the sphere where a considerably Iower particle density is presented, due to the location of the canister. However, it was also found that the concentration at the center of the sphere always remains Iower than the nominal concentration?
publishDate 2017
dc.date.issued.es_CO.fl_str_mv 2017
dc.date.accessioned.none.fl_str_mv 2018-09-28T11:00:28Z
dc.date.available.none.fl_str_mv 2018-09-28T11:00:28Z
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
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dc.type.content.spa.fl_str_mv Text
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dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/1992/13892
dc.identifier.pdf.none.fl_str_mv u729696.pdf
dc.identifier.instname.spa.fl_str_mv instname:Universidad de los Andes
dc.identifier.reponame.spa.fl_str_mv reponame:Repositorio Institucional Séneca
dc.identifier.repourl.spa.fl_str_mv repourl:https://repositorio.uniandes.edu.co/
url http://hdl.handle.net/1992/13892
identifier_str_mv u729696.pdf
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dc.language.iso.es_CO.fl_str_mv eng
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dc.rights.uri.*.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.extent.es_CO.fl_str_mv 18 hojas
dc.format.mimetype.es_CO.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Uniandes
dc.publisher.program.es_CO.fl_str_mv Maestría en Ingeniería Química
dc.publisher.faculty.es_CO.fl_str_mv Facultad de Ingeniería
dc.publisher.department.es_CO.fl_str_mv Departamento de Ingeniería Química
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