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Advisor(s)
Abstract(s)
A sustentabilidade da vida humana no planeta é um tema que tem tido um
crescimento exponencial, a par da tecnologia associada à mitigação da emissão de
gases com efeito de estufa e de exploração de recursos naturais, mas também com as
crescentes políticas restritivas nesta matéria, prevê-se, com cada vez mais certeza,
que o único caminho a adotar será o da convergência com todos estes valores.
A principal finalidade desta dissertação passou por estudar a viabilidade
da implementação de sistemas de propulsão 100% elétrica no setor naval, quais as
suas vantagens operacionais quando comparados com os sistemas convencionais e
quais as perspectivas de futuro desta tecnologia. Para responder a estas questões
foram estudadas diversas implementações de sucesso, tanto em projetos civis, como
os mais recentes desenvolvimentos tecnológicos aplicados a navios combatentes - enquadrando as particularidades operacionais de cada tipo de missão e estudando as
limitações que têm vindo a colocar em causa o seu correto estabelecimento. Foram
aplicados questionários de opinião junto dos próprios utilizadores dos sistemas de
propulsão elétrica que, após uma análise de capacidades internas e externas e de
alguma inferência estatística, permitiram concluir que, apesar de em determinado
tipo de navios ser ainda necessário ultrapassar alguns constrangimentos de projeto
para conseguir beneficiar das suas vantagens operacionais, noutros a sua utilização representa já uma peça-chave com inúmeras vantagens para o cumprimento da
missão atribuída.
The sustainability of human life on the planet is an issue that has had an exponential growth, along with the technology associated with the mitigation of greenhouse gas emissions and the exploitation of natural resources, but also with the increasing restrictive policies in this area, it is expected, with increasing certainty, that the only way to adopt will be convergence with all these values. The main purpose of this dissertation was to study the feasibility of implementing full-electric propulsion systems in the naval sector, what are its operational advantages when compared to conventional systems and what are the future trends in this technology. To answer these questions, several successful implementations have been studied, both in civil projects, as well as the latest technological developments applied to warships - framing the operational particularities of each type of mission and studying the limitations that have been called into question their correct establishment. Questionnaires were applied to the users of the electric propulsion systems themselves, which, after an analysis of internal and external capacities and some statistical inference, allowed us to conclude that, although in a certain type of ships it is still necessary to overcome some design constraints in order to benefit from their operational advantages, in others their use is already a key part with numerous advantages for the fulfillment of the mission assigned.
The sustainability of human life on the planet is an issue that has had an exponential growth, along with the technology associated with the mitigation of greenhouse gas emissions and the exploitation of natural resources, but also with the increasing restrictive policies in this area, it is expected, with increasing certainty, that the only way to adopt will be convergence with all these values. The main purpose of this dissertation was to study the feasibility of implementing full-electric propulsion systems in the naval sector, what are its operational advantages when compared to conventional systems and what are the future trends in this technology. To answer these questions, several successful implementations have been studied, both in civil projects, as well as the latest technological developments applied to warships - framing the operational particularities of each type of mission and studying the limitations that have been called into question their correct establishment. Questionnaires were applied to the users of the electric propulsion systems themselves, which, after an analysis of internal and external capacities and some statistical inference, allowed us to conclude that, although in a certain type of ships it is still necessary to overcome some design constraints in order to benefit from their operational advantages, in others their use is already a key part with numerous advantages for the fulfillment of the mission assigned.
Description
Keywords
Emissões Poluentes Propulsão Elétrica Soluções Híbridas Baterias Segurança