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Aviation fuels of the future − A techno-economic assessment of distribution, fueling and utilizing electricity-based LH2, LCH4 and kerosene (SAF)

Raab, Moritz and Dietrich, Ralph-Uwe and Philippi, Paula and Gibbs, Jonathan and Grimme, Wolfgang (2024) Aviation fuels of the future − A techno-economic assessment of distribution, fueling and utilizing electricity-based LH2, LCH4 and kerosene (SAF). Energy Conversion and Management: X, 23. Elsevier. doi: 10.1016/j.ecmx.2024.100611. ISSN 2590-1745.

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Official URL: https://www.sciencedirect.com/science/article/pii/S2590174524000898?via%3Dihub

Abstract

This paper investigates the techno-economic implications on air travel when fossil-based kerosene is phased out of the market, specifically focusing on the comparison between liquid hydrogen, liquid methane and renewable kerosene for ten exemplary flight routes to estimate the cost of air travel per passenger and 100 km distance travelled for every fuel type. By considering the entire supply chain, including hydrogen production from renewable sources, synthesis, oversea transport, domestic distribution, and utilization, this study addresses the overarching question of whether it is more economical to change the fuel source or the fuel itself to reduce fossil kerosene usage in the aviation industry. It is demonstrated that aircraft acquisition costs play a minor role compared to fuel supply costs and specific fuel demand. The study shows that for electricity-based fuels, liquid hydrogen is the most economic option, even with a potential energy penalty, followed by liquid methane and renewable kerosene. The results for an aircraft with a capacity 180 passengers are 3.08, 4.57 and 5.11 € per 100 passenger kilometers for liquid hydrogen, liquid methane and renewable kerosene, respectively. Challenges regarding storage and isolation requirements for cryogenic fuels in aviation are discussed, with assumptions made that these obstacles can be overcome to realize economic benefits. Additionally, the study suggests potential shifts in aircraft size selection by airlines to mitigate rising fuel prices in the future. The study advocates for the aviation industry's openness to new fuels like liquid hydrogen and liquid methane to alleviate the cost increase associated with phasing out fossil kerosene.

Item URL in elib:https://elib.dlr.de/204249/
Document Type:Article
Title:Aviation fuels of the future − A techno-economic assessment of distribution, fueling and utilizing electricity-based LH2, LCH4 and kerosene (SAF)
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Raab, MoritzUNSPECIFIEDhttps://orcid.org/0000-0002-7459-699XUNSPECIFIED
Dietrich, Ralph-UweUNSPECIFIEDhttps://orcid.org/0000-0001-9770-4810UNSPECIFIED
Philippi, PaulaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gibbs, JonathanSavion Aerospace Pty LtdUNSPECIFIEDUNSPECIFIED
Grimme, WolfgangUNSPECIFIEDhttps://orcid.org/0000-0001-8498-6281UNSPECIFIED
Date:7 May 2024
Journal or Publication Title:Energy Conversion and Management: X
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:23
DOI:10.1016/j.ecmx.2024.100611
Publisher:Elsevier
ISSN:2590-1745
Status:Published
Keywords:Aviation fuel, SAF, LH2, LCH4, hydrogen, methane, decarbonisation
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Energy System Transformation
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Systems Analysis and Technology Assessment, L - Air Transport Operations and Impact Assessment
Location: Köln-Porz , Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Energy System Integration
Institute of Air Transport > Air Transport Economics
Deposited By: Grimme, Wolfgang
Deposited On:15 May 2024 09:22
Last Modified:15 May 2024 09:22

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