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@PHDTHESIS{Kexel:1021922,
author = {Kexel, Jannik},
othercontributors = {Pischinger, Stefan and Casal Kulzer, André},
title = {{L}ebenszyklusbasierte {E}ntwicklung und {B}ewertung von
nachhaltigen {A}ntriebskonzepten},
school = {Rheinisch-Westfälische Technische Hochschule Aachen},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2025-09752},
pages = {1 Online-Ressource : Illustrationen},
year = {2025},
note = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
University; Dissertation, Rheinisch-Westfälische Technische
Hochschule Aachen, 2025},
abstract = {In response to the imperative of mitigating climate change,
the European Union has devised a strategy aiming for climate
neutrality by 2050. Extensive research has been conducted on
the carbon dioxide (CO2) life cycle analysis of various
propulsion systems. However, achieving net-zero greenhouse
gas emissions necessitates recalibrating key performance
indicators in their development. Consequently, this research
delves into the ecological sustainability impacts of diverse
propulsion concepts integrated into a C-segment sports
utility vehicle, assuming a $100\%$ renewable energy
scenario. These propulsion concepts encompass a
hydrogen-fueled 48V mild hybrid, a hydrogen-fueled 48V
hybrid, a methanol-fueled 400V hybrid, a
methanol-to-gasoline-fueled 400V plug-in hybrid, an 800V
battery electric vehicle (BEV), and a hydrogen fuel cell
electric vehicle (FCEV). To facilitate a comprehensive and
unbiased comparison, these concepts must meet the same
pre-defined customer requirements for system design. Hence,
a systems-engineering approach, coupled with a scalable and
modular modeling methodology across the entire process, is
employed to derive individualized, precisely tailored
propulsion concepts. For these optimized propulsion
concepts, an integrated and prospective Life-Cycle
Assessment (LCA) is conducted within the framework of DIN EN
ISO 14040/44 and the EU Product Environmental Footprint
methodology. Additionally, the socio-economic effects of
these propulsion concepts are analyzed, with consideration
given to their total cost of ownership (TCO) for a private
end customer. Uniquely, an integrated approach is utilized
to aggregate Life-Cycle Inventory data, combining
model-based system design with physical-empirical simulation
models and publicly available LCA databases. To address
uncertainties, a comprehensive sensitivity analysis is
undertaken, elucidating the interdependencies, co-benefits,
and trade-offs under different boundary conditions for LCA
and TCO. Assuming the defossilized energy scenario, this
leads to more sustainable propulsion systems, irrespective
of the propulsion concept. The FCEV demonstrates slight
advantages, while the BEV exhibits disadvantages that can be
improved by reducing requirements or adapting cell
chemistry. In conclusion, the recommendation is to foster an
open-minded development of future propulsion systems,
tailored to specific use-cases and targeted requirements,
while comprehensively considering the entire life cycle.
Furthermore, it is crucial to integrate as many
sustainability aspects as possible into the development
process.},
cin = {412310},
ddc = {620},
cid = {$I:(DE-82)412310_20140620$},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2025-09752},
url = {https://publications.rwth-aachen.de/record/1021922},
}
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