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Abstract(s)
Este trabalho visa o estudo de sistemas de produção de energia eléctrica a partir de combustíveis hidrogenados e toda a sua envolvente como forma de contribuir para apresentação de soluções técnicas que conduzam ao desenvolvimento sustentado. O trabalho pode ser dividido em duas grandes partes distintas: Uma primeira onde se define o enquadramento da produção de energia eléctrica tendo como base a economia do hidrogénio e o seu “estado da arte”. Nesta apresenta-se as células de combustível como uma tecnologia que se integra no conceito de geração distribuída. São também abordadas um conjunto de questões técnicas relacionadas com as células de combustível, nomeadamente o seu desempenho. Na segunda, mais experimental, recorre-se à utilização de dois tipos de células de combustíveis para produção de energia, com a finalidade de se comprovarem conceitos e metodologias possíveis de usar. São feitos ensaios de curvas características e de potência, ensaios de perdas, ensaios para a validação da Lei de Faraday e rendimentos. Muito embora a tecnologia recente desta forma de produção de energia esteja ainda numa fase de investigação, foi possível, através deste estudo, observar-se um conjunto de resultados importantes para o conhecimento, escolha e utilização adequada da mesma.
The aim of this paper is the study of electric power production systems from hydrogenated fuel, including the attempt of presenting technical solutions that may lead to sustained development. This paper can be divided in two distinct parts: in the first one it is defined the context of electric power production, based in the economy of hydrogen and its “state of the art” report. At this point, it is presented the fuel cells as a technology integrated in the concept of distributed generation. It is also given an approach of an ensemble of technical questions concerned with the fuel cells, namely its performance; in the second part, a more experimental one, it is employed two types of fuel cells to the power production, with the purpose of verifying concepts and methodologies susceptible of use. Power and characteristic curve tests were undertaken, as also leak tests, and finally tests to validate the Faraday law and incomes. Even though the recent technology of this form of power production is still in an investigation stage, it was possible, through this study, to observe an ensemble of important results to the knowledge, choice and use of it.
The aim of this paper is the study of electric power production systems from hydrogenated fuel, including the attempt of presenting technical solutions that may lead to sustained development. This paper can be divided in two distinct parts: in the first one it is defined the context of electric power production, based in the economy of hydrogen and its “state of the art” report. At this point, it is presented the fuel cells as a technology integrated in the concept of distributed generation. It is also given an approach of an ensemble of technical questions concerned with the fuel cells, namely its performance; in the second part, a more experimental one, it is employed two types of fuel cells to the power production, with the purpose of verifying concepts and methodologies susceptible of use. Power and characteristic curve tests were undertaken, as also leak tests, and finally tests to validate the Faraday law and incomes. Even though the recent technology of this form of power production is still in an investigation stage, it was possible, through this study, to observe an ensemble of important results to the knowledge, choice and use of it.
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Keywords
energia eléctrica combustíveis hidrogenados desenvolvimento sustentado hidrogénio células de combustível