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Advisor(s)
Abstract(s)
No contexto industrial, a eficiência dos processos de fabrico e a segurança no ambiente de
trabalho são aspetos cruciais para o sucesso de uma empresa. Uma das preocupações
constantes na indústria metalomecânica é a gestão adequada dos fumos de soldadura e das
poeiras geradas em processos de rebarbagem, ambos nocivos à saúde dos trabalhadores e ao
ambiente. Esta dissertação, realizada na empresa Sitape – Indústria Metalúrgica, S.A., teve
como foco principal o dimensionamento de um sistema de ventilação industrial para a
aspiração de fumos de soldadura e poeiras provenientes de processos de rebarbagem. O
sistema projetado é composto por seis bancadas, três campânulas, uma unidade filtrante, um
ventilador, uma chaminé e todo o sistema de tubagem e acessórios necessários. Para alcançar
os objetivos propostos, foi conduzida uma investigação detalhada sobre a
legislação/eurocódigos relevante(s) para o dimensionamento de sistemas de ventilação
industrial e chaminés. Adicionalmente, foi estudado o material a ser aspirado para garantir a
eficiência do sistema. O processo de dimensionamento incluiu a especificação de cada
componente do sistema, assegurando que todos estivessem adequadamente dimensionados
para atender às necessidades do cliente. A validação do dimensionamento da chaminé foi
realizada através do método de elementos finitos, permitindo confirmar a sua adequação com
base nas deformações finais e nas tensões principais obtidas. Os resultados demonstraram que
o sistema de ventilação projetado atende plenamente às exigências operacionais e que a
chaminé foi corretamente dimensionada, apresentando deformações e tensões dentro dos
limites preconizados na legislação em vigor. Além disso, foi apresentada uma proposta de
orçamento competitiva, reforçando a viabilidade económica do projeto. Após a realização deste
trabalho foi possível verificar que o sistema de despoeiramento se encontra bem dimensionado
ao nível das velocidades registadas no sistema bem como a nível estrutural.
In the industrial context, the efficiency of manufacturing processes and safety in the workplace are crucial aspects for the success of a company. One of the constant concerns in the metalworking industry is the proper management of welding fumes and dust generated in deburring processes, both harmful to the health of workers and the environment. This dissertation, held at Sitape – Indústria Metalúrgica, S.A., focused on the dimensioning of an industrial ventilation system for the suction of welding fumes and dust from deburring processes. The projected system consists of six benches, three hottes, a filter unit, a fan, a chimney and the entire piping system and necessary accessories. To fulfil the proposed objectives, a detailed investigation has been conducted on the relevant legislation/Eurocodes for the dimensioning of industrial ventilation systems and chimneys. Additionally, the material to be aspirated was studied to ensure the efficiency of the system. The scaling process included the specification of each component of the system, ensuring that all were adequately scaled to meet the customer's needs. Chimney dimensioning validation was carried out using the finite element method, allowing to confirm its suitability based on the obtained stresses and strains. The results showed that the designed ventilation system fully meets the operational requirements and that the chimney has been correctly dimensioned, showing stresses and strains within acceptable limits stipulated in the current legislation. In addition, a competitive budget proposal was submitted, reinforcing the economic viability of the project. This study contributes to the field of industrial ventilation systems by providing a detailed and applied study that can serve as a reference for future similar projects. After carrying out this work it was possible to verify that the dusting system is well dimensioned at the level of the speeds recorded in the system as well as at the structural level.
In the industrial context, the efficiency of manufacturing processes and safety in the workplace are crucial aspects for the success of a company. One of the constant concerns in the metalworking industry is the proper management of welding fumes and dust generated in deburring processes, both harmful to the health of workers and the environment. This dissertation, held at Sitape – Indústria Metalúrgica, S.A., focused on the dimensioning of an industrial ventilation system for the suction of welding fumes and dust from deburring processes. The projected system consists of six benches, three hottes, a filter unit, a fan, a chimney and the entire piping system and necessary accessories. To fulfil the proposed objectives, a detailed investigation has been conducted on the relevant legislation/Eurocodes for the dimensioning of industrial ventilation systems and chimneys. Additionally, the material to be aspirated was studied to ensure the efficiency of the system. The scaling process included the specification of each component of the system, ensuring that all were adequately scaled to meet the customer's needs. Chimney dimensioning validation was carried out using the finite element method, allowing to confirm its suitability based on the obtained stresses and strains. The results showed that the designed ventilation system fully meets the operational requirements and that the chimney has been correctly dimensioned, showing stresses and strains within acceptable limits stipulated in the current legislation. In addition, a competitive budget proposal was submitted, reinforcing the economic viability of the project. This study contributes to the field of industrial ventilation systems by providing a detailed and applied study that can serve as a reference for future similar projects. After carrying out this work it was possible to verify that the dusting system is well dimensioned at the level of the speeds recorded in the system as well as at the structural level.
Description
Keywords
Industrial ventilation system Chimney Environmental legislation Eurocodes Finite element method Structural design Sistema de ventilação industrial Chaminé Legislação ambiental Eurocódigos Método de elementos finitos Projeto estrutural