Publicações - engenharias
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SARMIENTO, HUGO;
Potgieter-Vermaak, Sanja;
BORILLO, GUILHERME C.;
GODOI, ANA FLÁVIA L.;
REIS, RODRIGO A.;
Carlos Itsuo Yamamoto;
PAULIQUEVIS, THEOTONIO;
POLEZER, GABRIELA;
Ricardo Henrique Moreton Godoi
Palavra-chave:
BTEX;
Porto de Paranaguá
Áreas do conhecimento:
Engenharias; Engenharia Química; Ambiental
resumo ...
Port-related activities have a detrimental impact on the air quality both at the point of source and for considerable distances beyond. These activities include, but are not limited to, heavy cargo traffic, onboard, and at-berth emissions. Due to differences in construction, operation, location, and policies at ports, the site-specific air pollution cocktail could result in different human health risks. Thus, monitoring and evaluating such emissions are essential to predict the risk to the community. Environmental agencies often monitor key pollutants (PM2.5, PM10, NO2, SO2), but the volatile organic carbons (VOCs) most often are not, due to its analytical challenging. This study intends to fill that gap and evaluate the VOC emissions caused by activities related to the port of Paranaguá — one of the largest bulk ports in Latin America — by characterizing BTEX concentrations at the port and its surroundings. At seven different sites, passive samplers were used to measure the dispersion of BTEX concentrations throughout the port and around the city at weekly intervals from November 2018 to January 2019. The average and uncertainty of BTEX concentrations (µg m−3) were 0.60 ± 0.43, 5.58 ± 3.80, 3.30 ± 2.41, 4.66 ± 3.67, and 2.82 ± 1.95 for benzene, toluene, ethylbenzene, m- and p-xylene, and o-xylene, respectively. Relationships between toluene and benzene and health risk analysis were used to establish the potential effects of BTEX emissions on the population of the city of Paranaguá. Ratio analysis (T/B, B/T, m,p X/Et, and m,p X/B) indicate that the BTEX levels are mainly from fresh emission sources and that photochemical ageing was at minimum. The cancer risk varied across the sampling trajectory, whereas ethylbenzene represented a moderate cancer risk development for the exposed population in some of the locations. This study provided the necessary baseline data to support policymakers on how to change the circumstances of those currently at risk, putting in place a sustainable operation.
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SARMIENTO, HUGO;
Potgieter-Vermaak, Sanja;
BORILLO, GUILHERME C.;
Ana Flavia Locateli Godoi;
REIS, RODRIGO A.;
YAMAMOTO, CARLOS I.;
PAULIQUEVIS, THEOTONIO;
POLEZER, GABRIELA;
Ricardo Henrique Moreton Godoi
Palavra-chave:
BTEX;
Health risks;
port
resumo ...
Port-related activities have a detrimental impact on the air quality both at the point of source and for considerable distances beyond. These activities include, but are not limited to, heavy cargo traffic, onboard, and at-berth emissions. Due to differences in construction, operation, location, and policies at ports, the site-specific air pollution cocktail could result in different human health risks. Thus, monitoring and evaluating such emissions are essential to predict the risk to the community. Environmental agencies often monitor key pollutants (PM2.5, PM10, NO2, SO2), but the volatile organic carbons (VOCs) most often are not, due to its analytical challenging. This study intends to fill that gap and evaluate the VOC emissions caused by activities related to the port of Paranaguá — one of the largest bulk ports in Latin America — by characterizing BTEX concentrations at the port and its surroundings. At seven different sites, passive samplers were used to measure the dispersion of BTEX concentrations throughout the port and around the city at weekly intervals from November 2018 to January 2019. The average and uncertainty of BTEX concentrations (µg m−3) were 0.60 ± 0.43, 5.58 ± 3.80, 3.30 ± 2.41, 4.66 ± 3.67, and 2.82 ± 1.95 for benzene, toluene, ethylbenzene, m- and p-xylene, and o-xylene, respectively. Relationships between toluene and benzene and health risk analysis were used to establish the potential effects of BTEX emissions on the population of the city of Paranaguá. Ratio analysis (T/B, B/T, m,p X/Et, and m,p X/B) indicate that the BTEX levels are mainly from fresh emission sources and that photochemical ageing was at minimum. The cancer risk varied across the sampling trajectory, whereas ethylbenzene represented a moderate cancer risk development for the exposed population in some of the locations. This study provided the necessary baseline data to support policymakers on how to change the circumstances of those currently at risk, putting in place a sustainable operation.
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Eduardo Márcio de Oliveira Lopes;
Eduardo Márcio de Oliveira Lopes;
José João de Espíndola;
José João de Espíndola;
José João de Espíndola;
José João de Espíndola
Palavra-chave:
Identification;
Dynamic Characterization;
Optimization;
Kriging method
resumo ...
The finite element method (FEM) is a useful numerical tool for solving engineering problems in general. FEM simulates the behavior of several structures regarding the boundary conditions applied. However, the FEM solution presents differences when compared to experimental data. A systematic approach called finite element method update (FEMU) can reduce those differences. Here, the structural or material parameters change following an optimization problem. Thus, this study aims to characterize the dynamic behaviors of structures using a methodology of FEMU. This methodology reduces the differences between the numerical and experimental dynamic behavior of structures. Also, it uses the Kriging surrogate and experimental data to identify geometric parameters and boundary conditions. We perform the simulations and the experiments in two structures: a fixed-free beam and a frame structure. The objective function quantifies the square root of the sum of the weighted quadratic differences between numerical and experimental frequency response functions. We develop numerical models and routines of the methodology in the Abaqus and MATLAB software packages. Finally, the methodology characterizes the numerical dynamic behavior of the studied structures quite accurately regarding the experimental data.
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José Eduardo Gubaua;
Gabriela Wessling Oening Dicati;
Thiago da Silva;
Eduardo Márcio de Oliveira Lopes;
Jucélio Tomás Pereira;
José João de Espíndola
Palavra-chave:
Finite Element Method;
Finite element Method Updating;
Structural dynamics;
Kriging metamodel;
Optimization
Áreas do conhecimento:
Engenharias; Engenharia Mecânica; Mecânica dos Sólidos; Dinâmica Estrutural;
Ciências Exatas e da Terra; Matemática; Otimização;
Engenharias; Engenharia Mecânica; Mecânica dos Sólidos; Métodos Numéricos
resumo ...
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José Eduardo Gubaua;
DICATI, GABRIELA WESSLING OENING;
DA SILVA, THIAGO;
Eduardo Márcio de Oliveira Lopes;
Jucélio Tomás Pereira;
BAVASTRI, CARLOS ALBERTO
Palavra-chave:
dynamic behavior;
Finite Element Method;
Parameter Identification;
Parametric optimization
Áreas do conhecimento:
Engenharias; Engenharia Mecânica; Mecânica dos Sólidos; Dinâmica dos Corpos Rígidos, Elásticos e Plásticos
resumo ...
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Guilherme Samways;
Andreoli, Cleverson Vitorio;
Miguel Mansur Aisse;
Julio Cezar Rietow;
Gustavo R. C. Possetti;
Alexandre K. Bico
Engenharia Sanitaria e Ambiental,
v. 3,
n. 4,
p. 95-111,
2023
Palavra-chave:
Central de Recebimento de Lodo de Tanque Séptico;
Codisposição;
Lodo de Tanque Séptico;
Reator UASB;
tanque séptico
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Tratamento de Águas de Abastecimento e Residuárias; Processos Simplificados de Tratamento de Águas
resumo ...
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Débora Abrantes Nunes Leal;
Isabel Souza;
João Tedim;
WYPYCH, FERNANDO;
Cláudia E. B. Marino
Palavra-chave:
layered double hydroxide;
layered hydroxide salts;
molybdate;
corrosion protection
Áreas do conhecimento:
Ciências Exatas e da Terra; Química; Engenharia e Ciencia de Materiais; Materiais de Baixa Dimensionalidade Estrutural;
Engenharias; Engenharia de Materiais e Metalúrgica; Metalurgia Física; Corrosão
resumo ...
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Debora Abrantes Leal;
Isabel Sousa;
Alexandre C Bastos;
João Tedim;
Fernando Wypych;
Cláudia Eliana Bruno Marino
Palavra-chave:
proteção contra a corrosão;
revestimentos inteligentes;
sistemas lamelares;
técnicas eletroquímicas
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações;
Engenharias; Engenharia de Materiais e Metalúrgica; corrosão & proteção
resumo ...
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Paulo Henrique Stival Slompo;
Pinto, M.A.V.;
Michely Laís de Oliveira
Palavra-chave:
Two-phase flow;
Porous Media;
Multigrid;
Modified Picard;
Coupled Gauss-Seidel
Áreas do conhecimento:
Ciências Exatas e da Terra; Matemática; Matemática Aplicada; Análise Numérica;
Engenharias; Engenharia Mecânica; Fenômenos de Transporte; Princípios Variacionais e Métodos Numéricos
resumo ...
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RIETOW, JULIO CEZAR;
Miguel Mansur Aisse;
BARÉA, LUIZ CÉSAR;
Andreoli, Cleverson Vitorio;
POSSETTI, GUSTAVO RAFAEL COLLERE
Palavra-chave:
Decanto Digestor;
Sanepar;
Unidade Biodigestora;
Reator Anaeróbio
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Tratamento de Águas de Abastecimento e Residuárias; Processos Simplificados de Tratamento de Águas
resumo ...
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