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Misturas de hidrogénio e gás natural em sistemas de transporte de energia
Paperback
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ISBN10: 6206721523
ISBN13: 9786206721529
Publisher: Edicoes Nosso Conhecimento
Published: Feb 9 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786206721529
Publisher: Edicoes Nosso Conhecimento
Published: Feb 9 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Portuguese
Misturas de hidrogénio e gás natural (H-NG) em sistemas energéticos. Este estudo avalia o hidrogénio como um vetor energético vital para a descarbonização global. Dado o elevado custo das infra-estruturas dedicadas, a mistura de hidrogénio nos gasodutos de gás natural existentes (H-NG) é uma solução pragmática e rentável para a transmissão em grande escala. A investigação compara vários modos de armazenamento (alta pressão, criogénico, hidretos metálicos e cavernas subterrâneas) e identifica os gasodutos como o método mais económico para o transporte a granel. As principais conclusões técnicas sugerem que concentrações de hidrogénio de 10-20% por volume são viáveis nas redes actuais sem grandes modificações nos aparelhos de utilização final. No entanto, o estudo destaca desafios críticos, incluindo a fragilização do material, o aumento dos riscos de inflamabilidade e uma redução do Índice de Wobbe. O documento também fornece uma estrutura teórica usando Equações de Estado (EOS) para modelar mudanças na compressibilidade do gás ($Z$) e no comportamento do fluxo. Em última análise, a mistura H-NG aproveita a infraestrutura existente para colmatar a lacuna em direção a uma economia baseada no hidrogénio, desde que sejam mantidas normas de segurança rigorosas e avaliações de compatibilidade de materiais.
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