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Swart, Mik (author)Climate change is a pressing issue. Hydrogen aircraft are an excellent alternative to current kerosene aircraft, and appear to be the most viable long-term solution for net-zero flight. One of the main challenges for hydrogen aircraft is to sustain a low boil-off rate. This research explores the solution of active cooling of the LH2 mixture in...master thesis 2024
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Desmit, Elliott (author)Hydrogen Polymer Electrolyte Membrane (PEM) fuel cell technology is becoming increasingly popular in the transportation sector, especially the automotive industry. It can power electric drives by converting hydrogen into electricity in a chemical reaction with oxygen, whose products consist only of water. Therefore, hydrogen PEM fuel cell-based...master thesis 2024
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Vamvakousi, E. (author), Frithasya Jeniardina Purba, Frithasya (author), Kadys, K. (author), Ham, Nikita (author), Pfisztner, S.A. (author)Since the Industrial Revolution, fossil fuels, such as coal, oil, and natural gas have provided the vast majority of energy used by our globalising civilisation. The rapid growth in energy use in the past 250 years has led to increasing fossil fuel usage, which has been the primary driver behind the ongoing climate emergency. Policy measures in...student report 2024
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Gijzen, Loek (author)As an alternative to kerosene (Jet-A1), green hydrogen is considered a potential solution to reduce the environmental impact of the medium-range aviation industry. While the technical feasibility of liquid hydrogen (LH2)-powered aircraft is already being researched and demonstrated, the required infrastructure, as well as its impact on the...master thesis 2024
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Mihailescu, Georgiana (author)Given the enduring issues of human-induced climate change, the appeal of strategies aimed at reducing greenhouse gases has never been greater. CO2 is the most concerning greenhouse gas due to the large quantity already emitted into the atmosphere and the ongoing excessive emissions from anthropogenic activities. The transportation sector...master thesis 2024
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Lagerwij, Sam (author)In response to the growing demand for air travel, major airports are approaching critical thresholds in their infrastructure capacity. As the transportation sector continues to expand, it is increasingly important to address environmental concerns that arise from aspects, such as noise annoyance and fuel consumption. This paper aims to enhance...master thesis 2024
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van Dalen, Sander (author)To meet the goals of the Paris agreement,sustainable aviation fuels, such as hydrogen, need be adopted on a large scale within the coming decades. Hydrogen-assisted combustion of kerosene is investigated as an intermediate step in the transition towards sustainable aviation. This study addresses the gaps in the current...master thesis 2024
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Gudaal, Sakariye (author)This thesis project undertakes a comprehensive numerical analysis of aerodynamic cooling ducts in the context of fuel-cell powered aircraft, aiming to enhance the efficiency and performance of these innovative propulsion systems. The use of fuel cells in aviation presents a paradigm shift towards sustainable and environmentally friendly air...master thesis 2024
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Beeravelli, Arun Datta (author)The Global Shipping industry is responsible for transporting 90% of global commerce and is responsible for 3% of global greenhouse gas (GHG) emissions. Addressing this, the International Maritime Organization (IMO) aims to reduce GHG emissions from international shipping by 40% by 2030 and achieve net zero by 2050. This study explores Low...master thesis 2024
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Stremming, Luca (author)Aviation is an important contributor to anthropogenic climate change. As indirect greenhouse gases, nitrogen oxides (NOx = NO + NO2) add to the Effective Radiative Forcing (ERF) induced by aircraft emissions. This work addresses a better understanding of emission mitigation by investigating dependencies between engine parameters and emitted...master thesis 2024
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Six, Pascale (author)Plastic is one of the major pollutants in the world and currently, more than 300 million tons of plastic are produced worldwide (Miandad et al. 2019). Since only 9.5% of plastic waste is being recycled, littering has caused a lot of non-recyclable plastics (NRP) that wander around damaging the environment and ending up in landfills, oceans and...master thesis 2024
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van der Knokke, Quan (author)Inland shipping is an efficient way of freight transportation, especially in the Province of South Holland (the Netherlands), but this sector faces a significant challenge in further reducing climate change effects and local health and environmental impacts caused by the combustion of diesel fuel.<br/><br/>In this study, an analysis of the...master thesis 2024
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Degeling, Pieter (author)New methods of ship propulsion are required to meet the targets for reducing global emissions of greenhouse gases. Hydrogen-powered fuel cells can be used to greatly reduce emissions, facilitating renewable shipping. Fuel cell durability is recognised as a large barrier to widespread fuel cell application. The goal of this graduation project is...master thesis 2024
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Zwaginga, J.J. (author), Lagemann, Benjamin (author), Erikstad, Stein Ove (author), Pruyn, J.F.J. (author)Shipowners need to prepare for low-emission fuel alternatives to meet the IMO 2050 goals. This is a complex problem due to conflicting objectives and a high degree of uncertainty. To help navigate this problem, this paper investigates how methods that take uncertainty into account, like robust optimization and stochastic optimization, could be...journal article 2024
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Silva Ortiz, P. (author), de Oliveira Junior, Silvio (author), Mariano, Adriano Pinto (author), Jocher, Agnes (author), Posada Duque, J.A. (author)The aeronautical sector faces challenges in meeting its net-zero ambition by 2050. To achieve this target, much effort has been devoted to exploring sustainable aviation fuels (SAF). Accordingly, we evaluated the technical performance of potential SAF production in an integrated first- and second-generation sugarcane biorefinery focusing on...journal article 2024
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Fedeli, M. (author), Negri, F. (author), Bornazzini, A. (author), Montastruc, L. (author), Manenti, F. (author), Kiss, A.A. (author)This study investigates an innovative method to produce dimethyl ether (DME) by direct synthesis from syngas derived from biogas. The proposed process was rigorously simulated in Aspen Plus, highlighting the main sections: (i) biogas tri-reforming, (ii) dimethyl-ether synthesis, and (iii) DME purification. The tri-reforming section has a CO...journal article 2024
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Amladi, Amogh (author), Venkataraman, V. (author), Woudstra, T. (author), Aravind, P.V. (author)Energy storage is vital for the energy transition, enabling reliable power grids based on intermittent renewables. Reversible solid oxide cell (rSOC) technology is promising for seasonal energy storage. The novel finding from this work is that optimised air recirculation for rSOC in endothermic electrolyser mode leads to efficiency being...journal article 2024
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Zhang, Zhenya (author), Mao, Jia (author), Wei, Houyu (author), Cheng, Chuanxiao (author), Liu, Zhengxuan (author)Proton exchange membrane fuel cells offer promising clean energy solutions for various applications. However, their performance relies heavily on the properties of the microporous layer, which plays a crucial role in transporting and distributing the components in the fuel cell. To date, the potential for optimising the microporous layer...journal article 2024
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Van Rheenen, E.S. (author), Padding, J.T. (author), Visser, K. (author)Hydrogen carriers are attractive alternative fuels for the shipping sectors. They are zero-emission, have high energy densities, and are safe, available, and easy to handle. Sodium borohydride, potassium borohydride, dibenzyltoluene, n-ethylcarbazole, and ammoniaborane are interesting hydrogen carriers, with high theoretical energy densities....conference paper 2024
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Kapetanović, M. (author), Nunez, Alfredo (author), van Oort, N. (author), Goverde, R.M.P. (author)This paper presents a method for estimating Well-to-Wheel (WTW) energy use and greenhouse gas (GHG) emissions attributed to the advanced railway propulsion systems implemented in conjunction with different energy carriers and their production pathways. The analysis encompasses diesel-electric multiple unit vehicles converted to their hybrid...journal article 2024