Searched for: subject%3A%22Climate%255C+Impact%22
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Pletzer, Johannes (author)
At speeds roughly between five and ten thousand km/h, hypersonic aircraft offer the promise of an extremely fast means of transport. Growing concerns about climate warming, however, direct attention to sustainability. This thesis focuses on atmospheric composition and radiation changes by considering a range of individual hypersonic aircraft...
doctoral thesis 2024
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Grangier, Guillaume (author)
The aviation industry is shouting out its aim to reach ”net-zero carbon” by 2050. Nevertheless, air traffic is expected to grow up until then, and if fuel consumption is reduced by new technologies and aircraft, other sources of global<br/>warming such as N Ox emissions and contrails are less considered. Therefore, the climate impact improvement...
master thesis 2023
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Irache Cabello, Iñigo (author)
This research investigates alternative biomass feedstocks for environmentally improved composites in the aviation industry. It addresses challenges and opportunities associated with biomass use and proposes a sustainable biomass feedstock for bio-methanol production as a carbon fibre precursor for composites. The aim is to evaluate the...
master thesis 2023
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Maruhashi, J. (author), Mertens, Mariano (author), Grewe, V. (author), Dedoussi, I.C. (author)
Aviation’s contribution to anthropogenic global warming is estimated to be between 3 – 5% [1]. This assessment comprises two contributions: the well understood atmospheric impact of carbon dioxide (CO2) and the more uncertain non-CO2 effects. The latter pertain to persistent contrails and pollutants like nitrogen oxides (NOx), water vapor (H2O),...
abstract 2023
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Noorafza, M. (author), Santos, Bruno F. (author), Sharpanskykh, Alexei (author), Zengerling, Zarah L. (author), Weder, Christian M. (author), Linke, Florian (author), Grewe, V. (author)
The aviation industry has set an ambitious goal of reducing its climate impacts. Accordingly, airlines must balance their plans according to this goal with financial considerations. We developed a multi-objective framework to facilitate climate-aware network design by incorporating the objective to minimise the flight average temperature...
journal article 2023
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Proesmans, P. (author), Morlupo, F. (author), Santos, Bruno F. (author), Vos, Roelof (author)
To reduce the climate impact of aviation, researchers are studying the replacement of fossil kerosene with liquid hydrogen and/or drop-in sustainable aviation fuel (SAF). These fuels can bring significant reductions in CO2 emissions and can offer savings in terms of non-CO2 climate effects. In addition, tube-and-wing aircraft can be optimized to...
conference paper 2023
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Kruin, Wessel (author)
Contrail formation is one the largest warming contributions of aviation’s climate impact. Measures to mitigate contrail climate impact include the optimisation of flight trajectories to avoid the formation of warming contrails or to find air space where extra cooling contrails are formed. The latter option is only possible during daytime, due to...
master thesis 2022
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Saez Ortuño, Miguel (author)
Concerned about rapidly rising temperatures, international institutions, nations, and companies worldwide examine how to reduce emissions in all economic sectors. Inside the aerospace sector, it is believed that hydrogen technology has the potential to be the best asset to fight global warming. This thesis aims to create and use a methodology to...
master thesis 2022
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van Dekken, Glenn (author)
Aviation activity results in around 5% of global climate impact, for which both the sources and the manner to improve through technology, operations, and policy need to be better understood. Therefore, a Scenario-based assessment through AirClim is done, assessing future efforts and their support for the Paris Agreement goals. The baseline...
master thesis 2022
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Dahlmann, K. (author), Grewe, V. (author), Matthes, S. (author), Yamashita, H. (author)
Climate impact of anthropogenic activities is more and more of public concern. But while CO<sub>2</sub> emissions are accounted in emissions trading and mitigation plans, emissions of non-CO<sub>2</sub> components contributing to climate change receive much less attention. One of the anthropogenic emission sectors, where non-CO<sub>2</sub>...
journal article 2022
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Proesmans, P. (author), Vos, Roelof (author)
Sustainable aviation fuel (SAF) and liquid hydrogen are currently being studied to replace kerosene in commercial aviation to reduce global warming. In this study, the question is how do the airplane design variables change when minimizing the global warming impact of aircraft powered by SAF or LH2? Secondly, how do these aircraft compare in...
conference paper 2022
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Radhakrishnan, Kaushik (author), Deck, K.T. (author), Proesmans, P. (author), Linke, Florian (author), Yin, F. (author), Grewe, V. (author), Vos, Roelof (author), Lührs, Benjamin (author), Niklaβ, Malte (author), Dedoussi, I.C. (author)
The aircraft’s environmental performance on fleet level is so far completely decoupled from the design process. The climate impact from aviation arising from non-CO2 effects are largely independent from CO2 emissions, but rather depend on the atmospheric state. Previously complex climate-chemistry models were used to evaluate the non-CO2...
conference paper 2022
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Thijssen, R. (author), Proesmans, P. (author), Vos, Roelof (author)
This paper studies the climate impact of propeller aircraft which are optimized for either minimum direct operating costs, minimum fuel mass, or minimum average temperature response (ATR100). The latter parameter provides a measure of the global warming impact of the aircraft design, considering both CO2 and non-CO2 effects. We study turboprop...
conference paper 2022
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Proesmans, P. (author), Vos, Roelof (author)
This paper presents a method to assess the key performance indicators of aircraft designed for minimum direct operating costs and aircraft designed for minimum global warming impact. The method comprises a multidisciplinary aircraft optimization algorithm capable of changing wing, engine, and mission design variables while including constraints...
journal article 2022
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Kos, Johan (author), Posada Duque, J.A. (author), Peerlings, Bram (author), ben Salah, Nora (author), Lim, Nanette (author), Lammen, Wim (author), Stepchuk, I. (author), van der Sman, Elisabeth (author), Palmeros Parada, M.D.M. (author)
This paper investigates green hydrogen and bio-based sustainable aviation fuels, including their production technology and feedstock, in combination with Clean Sky 2 propulsion technologies and novel hydrogen-powered propulsion technologies. The impact that these alternative aviation fuels and propulsion technologies can have on greenhouse...
conference paper 2022
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Simorgh, Abolfazl (author), Soler, Manuel (author), González-Arribas, Daniel (author), Matthes, Sigrun (author), Grewe, V. (author), Dietmüller, Simone (author), Baumann, Sabine (author), Yin, F. (author), Castino, F. (author)
The strong growth rate of the aviation industry in recent years has created significant challenges in terms of environmental impact. Air traffic contributes to climate change through the emission of carbon dioxide (CO<sub>2</sub>) and other non-CO<sub>2</sub> effects, and the associated climate impact is expected to soar further. The...
review 2022
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Rao, P.V. (author), Yin, F. (author), Grewe, V. (author), Yamashita, Hiroshi (author), Jöckel, Patrick (author), Matthes, Sigrun (author), Mertens, Mariano (author), Frömming, Christine (author)
One possibility to reduce the climate impact of aviation is the avoidance of climate-sensitive regions, which is synonymous with climate-optimised flight planning. Those regions can be identified by algorithmic Climate Change Functions (aCCFs) for nitrogen oxides (NOx), water vapour (H2O) as well as contrail cirrus, which provide a measure of...
journal article 2022
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Neuman, Joris (author)
The aviation sector accounted for 3.4 to 4.0% of the total anthropogenic radiative forcing in 2015. The sectors’growth is several percentage points larger than the annual fuel efficiency gain, resulting in an increasing climatechange impact. The world formulated goals for 2050 to limit anthropogenic climate change, the aviation sectorrequires a...
master thesis 2021
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van Loo, Marijn (author)
Excessive nitrogen deposition from anthropogenic emissions has a global impact on natural biodiversity. While aviation emissions have been studied in the context of climate change and air quality, this is not true for nitrogen deposition. Meanwhile the growth of the aviation industry is likely to increase the relative contribution of aviation...
master thesis 2021
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Saluja, Harjot Singh (author)
In the last few years, there has been a growing awareness regarding the climate impact of aviation in the general public. With global warming effects becoming more severe, it is important that aviation drastically reduce its emission footprint to keep the impact on the climate lower. There have been ongoing efforts by various organizations such...
master thesis 2021
Searched for: subject%3A%22Climate%255C+Impact%22
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