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Eco-efficiency assessment of manufacturing carbon fiber reinforced polymers (CFRP) in aerospace industry

Al-Lami, Ali and Hilmer, Philipp and Sinapius, Michael (2018) Eco-efficiency assessment of manufacturing carbon fiber reinforced polymers (CFRP) in aerospace industry. Aerospace Science and Technology. Elsevier. ISSN 1270-9638.

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Carbon fiber reinforced polymers (CFRP) are frequently used in aerospace industry. However, the manufacturing carbon footprint and direct cost are obstacles in the way of adopting CFRP in further aerospace structures. Therefore, the development of a combined ecological and economic assessment model for CFRP manufacturing is demonstrated in this paper. This model illuminates the proper developments for the decision-makers. In this work, the eco-efficiency assessment model (EEAM) is developed based on life cycle assessment (LCA) and life cycle cost analysis (LCCA). EEAM is an activity-based bottom-up decision support tool for the manufacturing process of fiber reinforced polymer (FRP). This paper discuses a case study of manufacturing CFRP wing ribs for a modern commercial aircraft as a part of the project LOCOMACHS. Ecological results of EEAM conclude that the carbon footprint of manufacturing wing rib made of CFRP thermoset by the technique of in-autoclave single-line-injection (SLI) is around 109 kg CO2-equivalent for each kg of CFRP. Moreover, fiber material is the main contributor in this carbon footprint. On the other hand, the economic assessment shows that the studied rib has a direct manufacturing cost of about 584 €/kg. In these results, labor work dominates the direct cost with 49%, while fiber and matrix compensate about 35%. As an activity-based assessment model, EEAM guides the decision-makers toward sustainable direct applications. It is concluded that direct applications for fiber waste reduction are beneficial for both eco-efficiency aspects. Energy consumption reduction is ecologically beneficial, while labor work reduction on the other hand is cost relevant. In aerospace industry, there is a clear potential for eco-efficient direct applications that satisfy both aspects.

Item URL in elib:https://elib.dlr.de/121124/
Document Type:Article
Title:Eco-efficiency assessment of manufacturing carbon fiber reinforced polymers (CFRP) in aerospace industry
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Al-Lami, Aliali.al-lami (at) dlr.dehttps://orcid.org/0000-0003-4176-5547
Hilmer, PhilippPhilipp.Hilmer (at) dlr.dehttps://orcid.org/0000-0001-8534-6665
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:Aerospace structure manufacturing; Gate-to-gate eco-efficiency assessment; Carbon fiber reinforced polymers (CFRP)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Technology
Deposited By: Al-Lami, Ali
Deposited On:01 Oct 2018 08:54
Last Modified:31 Jul 2019 20:18

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