Aircraft Life Cycle Assessment

A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Aeronautics".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 5680

Special Issue Editors

Institute of Maintenance, Repair and Overhaul, Department Product Lifecycle Management, German Aerospace Center (DLR e.V.), Hein-Saß-Weg 22, 21129 Hamburg, Germany
Interests: air transportation systems; maintenance; aircraft life cycle cost-benefit evaluation; life cycle assessment

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Guest Editor
Laboratory of Technology & Strength of Materials (LTSM), Department of Mechanical Engineering & Aeronautics, University of Patras, 26504 Patras, Greece
Interests: computational and experimental strength of materials; advanced composites; nanocomposites; adhesives; nanocryctalline materials; multi-scale modeling; bio-based polymers and bio-composites; shock wave mechanics; structural health monitoring; recycling of composites; life-cycle analysis
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Special Issue Information

Dear Colleagues,

Given the growing environmental awareness of society and politics and the resulting pressure on aviation as one of the significant contributors to greenhouse gas emissions and other environmental impacts, ecological impact assessments are becoming increasingly important as the first step towards sustainable engineering. The primary motivation for conducting such environmental assessments is to determine the environmental impact of aircraft throughout the life cycle phases of manufacturing, operation, maintenance, repair and overhaul, and end-of-life.

Understanding these impacts is essential for all stakeholders in the aviation system for making sound decisions about the design, operation, and disposal of aircraft as well as operational and technological measures that will reduce the environmental footprint in the most effective way and thus ultimately help to create more sustainable aviation systems.

However, the environmental impact of aircraft is a complex and multi-disciplinary issue that requires a holistic approach and an integrated view. Key issues related to the environmental performance of aircraft include sustainable design and manufacturing practices, strategies to reduce fuel consumption and emissions, waste reduction and recycling, and sustainable end-of-life disposal practices. This Special Issue provides an opportunity for researchers to publish their findings on a wide range of topics arising from their research on aviation's environmental footprint and measures to reduce its impact. Within the area of production, this includes the energy and resource consumption required for the extraction and processing of raw materials or the generation of waste and emissions from the manufacturing process. Research in the area of the operational phase may include aspects such as fuel efficiency of the aircraft, in-flight emissions or the type and quality of fuel used. Studies in the field of MRO can address energy consumption and waste generation during the maintenance process, material demand or the impact of transportation of parts and components. Key considerations for the end-of-life phase may focus on the energy and resources required to dismantle and recycle the aircraft, the disposal of hazardous materials and waste generated during the dismantling process.

In addition to the consideration of measures in the individual life cycle phases as well as their cross-phase influence, papers are also welcome that present methodological approaches that go beyond the application of standard evaluation approaches. This concerns, for example, the enhancement of the quality and availability of aviation-specific data sets, the expansion of impact categories to include aviation-specific aspects such as noise, the consideration of circular economy aspects or co-design approaches.

The aim of this Special Issue is to focus on recent developments on LCA of aerospace structures by gathering contributions from various subfields, including (but not limited to):

  • Environmental impact assessment;
  • Ecological footprint;
  • Sustainability;
  • Eco-design principles;
  • Life cycle assessment databases;
  • Life cycle-based decision-making;
  • Life cycle management;
  • Life cycle optimization;
  • Baseline and novel LCA standards and methods;
  • Social life cycle analysis;
  • Sustainable driven aircraft design;
  • Planetary boundaries;
  • Aircraft manufacturing;
  • Material selection;
  • Alternative energy carriers;
  • Emissions;
  • Maintenance, repair and overhaul;
  • End-of-Life;
  • Material reuse and recycling (experiments and process simulation);
  • Resource depletion;
  • Environmental labeling;
  • Circular economy principles;
  • Circular business models;
  • Digital tools for circularity assessment and enhancement.

Dr. Kai Wicke
Dr. Konstantinos Tserpes
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (4 papers)

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Research

15 pages, 330 KiB  
Article
Stream Life Cycle Assessment Model for Aircraft Preliminary Design
by Pietro Vivalda and Marco Fioriti
Aerospace 2024, 11(2), 113; https://doi.org/10.3390/aerospace11020113 - 26 Jan 2024
Viewed by 1064
Abstract
The growing environmental public awareness and the consequential pressure on every industrial field has made environmental impact assessment increasingly important in the last few years. In this scope, the most established tool used in the specialized literature is the life cycle assessment. Applying [...] Read more.
The growing environmental public awareness and the consequential pressure on every industrial field has made environmental impact assessment increasingly important in the last few years. In this scope, the most established tool used in the specialized literature is the life cycle assessment. Applying this method to the life cycle of an aircraft requires it to be broken down into at least four phases: production, operation, maintenance and disposal. In the assessment, the evaluation of the environmental impact of fuel consumption can be performed linearly and has already been studied over many years, while calculating the impact of other life phases is more complicated, and it is still under study. This paper describes a simple and effective method developed to assess the environmental impact of an aircraft at a preliminary design stage and the implemented model that resulted from it. A detailed consideration of all life cycle phases is essential to serve as a reference for the ecological assessment of novel aircraft concepts. Thereby, the developed method is based on some parametric equations that take into account preliminary information, such as the mass breakdown, the technology used and some program considerations. The results obtained have been compared with those of the literature for verification and validation and have proved to be quite reliable. In fact, the comparison with known analyses, conducted on individual aircraft in a very precise manner, has showed that the proposed model is capable of giving results that fell within ±10% of the reference values. This is due to the broad generality of the model, which does not require a large number of specific data as a starting point to obtain reasonably reliable results for use during project development. In the near future, the use of this model can assist the design of aircraft architectures that comply with the European Green Deal of reducing net greenhouse gas emissions by at least 55% by 2030 and of having no net emissions of greenhouse gases by 2050. Full article
(This article belongs to the Special Issue Aircraft Life Cycle Assessment)
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24 pages, 352 KiB  
Article
Integrating Life Cycle Assessment in Conceptual Aircraft Design: A Comparative Tool Analysis
by Kristina Mazur, Mischa Saleh and Mirko Hornung
Aerospace 2024, 11(1), 101; https://doi.org/10.3390/aerospace11010101 - 22 Jan 2024
Viewed by 1463
Abstract
Early and rapid environmental assessment of newly developed aircraft concepts is eminent in today’s climate debate. This can shorten the decision-making process and thus accelerate the entry into service of climate-friendly technologies. A holistic approach within the conceptual aircraft design is taken into [...] Read more.
Early and rapid environmental assessment of newly developed aircraft concepts is eminent in today’s climate debate. This can shorten the decision-making process and thus accelerate the entry into service of climate-friendly technologies. A holistic approach within the conceptual aircraft design is taken into consideration in terms of a life cycle assessment (LCA) to properly model and evaluate these concepts. To provide an understanding of how different LCA software affects the assessment, the goals of this study are to establish a baseline metrics definition for comparative evaluation and apply them to two tools. The first tool is an existing simplified derivative of openLCA, while the second, developed in this study, is an automated interface to the same software. The main finding is that researchers and practitioners must carefully consider the intended use of the tool. The simplified tool is suitable for training and teaching purposes and assessments on single score level. In contrast, an advanced tool is required in order to appropriately analyze the overall impact categories requiring high levels of LCA expertise, modeling, and time effort. Full article
(This article belongs to the Special Issue Aircraft Life Cycle Assessment)
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0 pages, 1501 KiB  
Article
Multi-Modal Life Cycle Assessment of Journeys by Aircraft, Train or Passenger Car
by R. J. Roosien, M. N. A. Lim, S. M. Petermeijer and W. F. Lammen
Aerospace 2024, 11(1), 98; https://doi.org/10.3390/aerospace11010098 - 20 Jan 2024
Viewed by 1226
Abstract
To reduce the carbon footprint of transport, policymakers are simultaneously stimulating cleaner vehicles and more sustainable mobility choices, such as a shift to rail for short-haul flights within Europe. The purpose of this study is to determine the climate impact of a journey [...] Read more.
To reduce the carbon footprint of transport, policymakers are simultaneously stimulating cleaner vehicles and more sustainable mobility choices, such as a shift to rail for short-haul flights within Europe. The purpose of this study is to determine the climate impact of a journey within Europe by aircraft, train or passenger car, and to better understand what factors drive this impact in order to make smarter and more sustainable fact-based mobility choices. The study consists of a life cycle inventory (LCI) and life cycle impact assessment (LCA) of greenhouse gas emissions of specific vehicles in five case study travel scenarios in Europe. The energy and resulting direct emissions (including non-CO2) of the aircraft scenarios were calculated for the purpose of this study using the Mission Aircraft and Systems Simulation tool developed by the Royal Netherlands Aerospace Centre NLR. For other LCA phases and other modes of transport, the study relies on emission factors from public literature. A trip by train results in three to five times less emissions than a comparable trip by aircraft. In most scenarios, the passenger car with two people onboard emits significantly more than a train but slightly less than an aircraft. The study also shows what drives the climate impact of such a trip and how this is very different for different modes of transport. The study further highlights a lack of high-quality data, especially in the areas of indirect emissions and infrastructure, poor consistency among studies and a general under-documentation and lack of transparency regarding assumptions. Full article
(This article belongs to the Special Issue Aircraft Life Cycle Assessment)
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13 pages, 1664 KiB  
Communication
Electrical Distribution System LCA for Future Regional Aircraft—Preliminary Definition of Methodology
by Daniel Izquierdo, Gabriel Casas, Ana G. Garriga, Ignacio Castro, Aleksandra Zieminska-Stolarska, Mariia Sobulska and Ireneusz Zbicinski
Aerospace 2023, 10(11), 920; https://doi.org/10.3390/aerospace10110920 - 28 Oct 2023
Viewed by 1334
Abstract
The Hybrid Electric Regional Aircraft Distribution Technologies (HECATE) Clean Aviation project will mature and develop breakthrough technologies and perform scalability and impact analysis to ensure safe and power-dense technologies that will enable Entry Into Service (EIS) of hybrid-electric regional aircraft by 2035. Along [...] Read more.
The Hybrid Electric Regional Aircraft Distribution Technologies (HECATE) Clean Aviation project will mature and develop breakthrough technologies and perform scalability and impact analysis to ensure safe and power-dense technologies that will enable Entry Into Service (EIS) of hybrid-electric regional aircraft by 2035. Along the project, a circular economy approach in future aircraft will be ensured through the use of Life Cycle Assessment (LCA), performing this type of assessment on the overall electrical system and primary/secondary distribution and conversion technologies, helping to be in line with long-term environmental roadmaps such as Flightpath 2050. This communication includes a description of the HECATE activities and how LCA will be applied to the future Regional Aircraft Electrical Distribution System. Full article
(This article belongs to the Special Issue Aircraft Life Cycle Assessment)
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