On the right track? Energy use, carbon emissions, and intensities of world rail transportation, 1840-2020

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2024

Autores

Tostes, B (Autor) Outra; Henriques, ST (Autor) FEP; Brockway, PE (Autor) Outra; Heun, MK (Autor) Outra; Domingos, T (Autor) Outra; Sousa, T (Autor) Outra

Revista

Título: Applied Energy

Vol. 367

ISSN: 0306-2619

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 5 Citações

Outras Informações

ID Authenticus: P-010-DV6

DOI: 10.1016/j.apenergy.2024.123344

Abstract (EN): The history of rail transport can offer valuable insights for future energy transitions due to its importance in promoting clean mobility. There is a complex interplay between the evolution of the railway network, fuel consumption, efficiency, energy service, and CO(2 )emissions that requires further exploration. We developed a dataset that covers energy use in all stages of rail transportation, as well as the length of track, energy service, and CO(2 )emissions at the world scale. To deal with missing data we utilized machine learning techniques for the first time in a historical energy reconstruction study. Our analysis reveals that for world rail transport (1) the final-to-useful efficiency has increased by 30-fold from 1840 to 2020, mainly due to the replacement of steam trains with diesel and electric ones, (2) the peak in final energy use occurred in the 1940s, while useful energy use and transport service continue to grow, (3) there was a reduction in the energy (carbon) intensity from approximately 20 to 0.2 MJ/tkm (2 to 0.02 kg CO2/tkm) between 1840 and 2010, due not only to the increase in final-to-useful efficiency but also to rising occupancy, better operating conditions, and reduced losses by the passive system.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 19