{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/5941"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/5941","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Análise da aerodispersão de contaminantes em laboratórios de pesquisa com biossegurança","abstract":"This study was proposed to analyse the transport of airborne particle contaminants that are generated within research laboratories with biosafety level. The analysis were conducted using numerical simulations, with the computational fluid dynamics (CFD) technique. Three benchmarks, related to this class of problems, were used for CFD code validation. This thesis’ modeling assumption was that related contaminants were generated inside a biological safety cabinet (BSC). Several scenarios were modeled, in order to promote sensitivity tests on the BSC’s contaminant containment to variations on selected boundary condition values. Representative factors related to the containment capability and room ventilation effectiveness were defined and calculated for each scenario, in order to support the comparison analysis and conclusions. Results demonstrated that containment, for this class of problems, is affected by indoor flow turbulence intensity and by the BSC’s inflow velocity. The strategy of increasing room ventilation rate may reduce this containment cabapility. A transient simulation was performed, in order to produce information on the order of the time scale related to the transport of the contaminant from the BSC to the room occupied zone.","abstract_html":"This study was proposed to analyse the transport of airborne particle contaminants that are generated within research laboratories with biosafety level. The analysis were conducted using numerical simulations, with the computational fluid dynamics (CFD) technique. Three benchmarks, related to this class of problems, were used for CFD code validation. This thesis’ modeling assumption was that related contaminants were generated inside a biological safety cabinet (BSC). Several scenarios were modeled, in order to promote sensitivity tests on the BSC’s contaminant containment to variations on selected boundary condition values. Representative factors related to the containment capability and room ventilation effectiveness were defined and calculated for each scenario, in order to support the comparison analysis and conclusions. Results demonstrated that containment, for this class of problems, is affected by indoor flow turbulence intensity and by the BSC’s inflow velocity. The strategy of increasing room ventilation rate may reduce this containment cabapility. A transient simulation was performed, in order to produce information on the order of the time scale related to the transport of the contaminant from the BSC to the room occupied zone.","abstract_has_math":false,"creators":["Barbosa, Bruno Perazzo Pedroso"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Brum, Nisio de Carvalho Lobo"],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-08","date_published":"2017-08","updated_at":"2026-07-24T01:16:18Z","subjects":["Contaminantes","Laboratórios","Biossegurança","Controle ambiental"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/5941","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Brum, Nisio de Carvalho Lobo"]},{"key":"dc:creator","label":"Author","values":["Barbosa, Bruno Perazzo Pedroso"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-12-06T15:28:11Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:00:56Z"]},{"key":"dc:date.issued","label":"Date","values":["2017-08"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Tese"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Contaminantes","Laboratórios","Biossegurança","Controle ambiental"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/5941"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This study was proposed to analyse the transport of airborne particle contaminants that are generated within research laboratories with biosafety level. The analysis were conducted using numerical simulations, with the computational fluid dynamics (CFD) technique. Three benchmarks, related to this class of problems, were used for CFD code validation. This thesis’ modeling assumption was that related contaminants were generated inside a biological safety cabinet (BSC). Several scenarios were modeled, in order to promote sensitivity tests on the BSC’s contaminant containment to variations on selected boundary condition values. Representative factors related to the containment capability and room ventilation effectiveness were defined and calculated for each scenario, in order to support the comparison analysis and conclusions. Results demonstrated that containment, for this class of problems, is affected by indoor flow turbulence intensity and by the BSC’s inflow velocity. The strategy of increasing room ventilation rate may reduce this containment cabapility. A transient simulation was performed, in order to produce information on the order of the time scale related to the transport of the contaminant from the BSC to the room occupied zone."]},{"key":"dc:title","label":"Title","values":["Análise da aerodispersão de contaminantes em laboratórios de pesquisa com biossegurança"]}]}],"canonical_facts":{"dc:contributor.advisor":["Brum, Nisio de Carvalho Lobo"],"dc:creator":["Barbosa, Bruno Perazzo Pedroso"],"dc:date.accessioned":["2018-12-06T15:28:11Z"],"dc:date.available":["2026-05-16T03:00:56Z"],"dc:date.issued":["2017-08"],"dc:description.abstract":["This study was proposed to analyse the transport of airborne particle contaminants that are generated within research laboratories with biosafety level. The analysis were conducted using numerical simulations, with the computational fluid dynamics (CFD) technique. Three benchmarks, related to this class of problems, were used for CFD code validation. This thesis’ modeling assumption was that related contaminants were generated inside a biological safety cabinet (BSC). Several scenarios were modeled, in order to promote sensitivity tests on the BSC’s contaminant containment to variations on selected boundary condition values. Representative factors related to the containment capability and room ventilation effectiveness were defined and calculated for each scenario, in order to support the comparison analysis and conclusions. Results demonstrated that containment, for this class of problems, is affected by indoor flow turbulence intensity and by the BSC’s inflow velocity. The strategy of increasing room ventilation rate may reduce this containment cabapility. A transient simulation was performed, in order to produce information on the order of the time scale related to the transport of the contaminant from the BSC to the room occupied zone."],"dc:identifier.uri":["http://hdl.handle.net/11422/5941"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Contaminantes","Laboratórios","Biossegurança","Controle ambiental"],"dc:title":["Análise da aerodispersão de contaminantes em laboratórios de pesquisa com biossegurança"],"dc:type":["Tese"]},"updated_at":"2026-07-24T01:16:18Z"}