Environmental Assessment of the End-of-Life Phase of Alternative and Conventional Propulsion Systems in the Context of Life Cycle Assessment

Schwarz, Lea; Stumper, Benedikt; Bargende, Michael; Dreyer, Stefan; Baretzky, Ulrich; Kotauschek, Wolfgang; Bach, Florian

doi:10.4271/2019-01-5013

Cited by 1 publication

(1 citation statement)

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“…An example of a site-dependent LCA for urban transportation was discussed in a study by the Energy and Resources Institute of New Delhi, where the Metro rail and the Bus and Rapid Transit Systems (BRTS) were compared (Ghate and Qamar 2020). In the LCA literature, the end-of-life framework for city buses is also investigated as described in the review by Schwarz et al (2019) to avoid resource short-falls of the needed resources in the production of alternative propulsion systems. Finally, Russell (2019) states correctly that for a comparative LCA, the evaluation of emissions must be carefully performed through the most appropriate method.…”

Section: Introductionmentioning

confidence: 99%

Electric and biomethane-fuelled urban buses: comparison of environmental performance of different powertrains

Mastinu

Solari

2022

Int J Life Cycle Assess

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Purpose The paper aims to promote the transition to low/zero emission of the local public transport, particularly, urban buses are taken into account. Method The life cycle assessment of electric and biomethane-fuelled urban buses is performed by exploiting SimaPro commercial software (v.9.1.1.). Attention is focused on powertrains. Both midpoint and endpoint analyses are performed. Referring to environmental impact, the best compressed biomethane gas (CBG) powertrain was compared to the best electric one. Additionally, the worst-case scenario has been considered for both CBG and electric powertrains. Results CBG powertrain outperforms the electric one if overall greenhouse gas emissions are considered. However, the electric powertrain seems promising for human health and ecosystem. Conclusions The environmental performance of the two powertrains is good. Both of the two technologies have strength and weak points that anyhow make them good candidates for a clean local public transport of the future. The analysis performed in the paper suggests a future investigation on hybrid electric-CBG powertrain. Actually, such a solution could benefit from both the strengths of the biomethane and the electric powertrain.

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Section: Introductionmentioning

confidence: 99%