Química

URI Permanente desta comunidade

http://repositorio.ufes.br/handle/10/17500
Programa de Pós-Graduação em Química

Centro: CCE
Telefone: (27) 4009 2909
URL do programa: http://www.quimica.vitoria.ufes.br

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    Aplicação da fluidodinâmica computacional (CFD) e análise de acelerantes por CG/EM na investigação de incêndio
    (Universidade Federal do Espírito Santo, 2020-03-05) Cunha, Igor Olimpio Pazini da; Lacerda Junior, Valdemar; https://orcid.org/0000000282575443; http://lattes.cnpq.br/9819471276433138; https://orcid.org/0009-0002-8768-4216; http://lattes.cnpq.br/5285727239236867 ; Azevedo, Macksuel Soares de; https://orcid.org/0000000330113420; http://lattes.cnpq.br/6726295161401220; Kuster, Ricardo Machado; https://orcid.org/0000000289615348; http://lattes.cnpq.br/4149814906786366
    Fire investigation is a complex activity that involves skill, technology, knowledge and science and aims to elucidate events related to fire, such as cause, origin, propagation, phenomena, etc. Chemical analysis to check the presence of foreign substances in that location and the use of fire simulation software, are efficient and economical ways to study the behavior of fire during the occurrence of a fire. This work demonstrates the application of Gas Chromatography Coupled by Mass Spectrometry (GC-MS) in the analysis to identify gasoline and diesel in different substrates by means of ACS and SPME extraction, as well as the application of computational fluid dynamics (CFD) to assist in the elucidation of fires. The chemical analyzes carried out showed the possibility of identifying the presence of accelerators even in small quantities (1 μL) and in different types of materials (wood, polyethylene, polyurethane, polyamide and newsprint). The computational model generated by the Fire Dynamics Simulator (FDS) software proved to be consistent with the data obtained at the site by the fire expert, thus serving to discard hypotheses and conclude the investigation.