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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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Mammadov, Ilkin (author)The main bearing is a critical wind turbine drivetrain component, and its failure can cause the turbine shutdown and expensive repair. As the main bearing degrades, its temperature increases, indicating health deterioration of the component. Various methods proposed in the literature employ physics-based normal behavior models (NBMs) using...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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Chen, Wei (author), Liu, Xu (author), Hu, D. (author), Liu, X. (author), Zhu, Xi (author), Fan, Xuejun (author), Zhang, Kouchi (author), Fan, J. (author)During operation in environments containing hydrogen sulfide (H<sub>2</sub>S), such as in offshore and coastal environments, sintered nanoCu in power electronics is susceptible to degradation caused by corrosion. In this study, experimental and molecular dynamics (MD) simulation analyses were conducted to investigate the evolution and...journal article 2024
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Li, Tianzhi (author), Chen, Jian (author), Yuan, Shenfang (author), Zarouchas, D. (author), Sbarufatti, Claudio (author), Cadini, Francesco (author)Fatigue damage prognosis always requires a degradation model describing the damage evolution with time; thus, the prognostic performance highly depends on the selection of such a model. The best model should probably be case specific, calling for the fusion of multiple degradation models for a robust prognosis. In this context, this paper...journal article 2024
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Mohapatra, Sanjeeb (author), Li Xian, Jovina Lew (author), Gálvez-Rodríguez, Andy (author), Ekande, Onkar Sudhir (author), Drewes, Jörg E. (author), Gin, Karina Yew-Hoong (author)Quaternary ammonium compounds (QACs) are commonly used in many products, such as disinfectants, detergents and personal care products. However, their widespread use has led to their ubiquitous presence in the environment, posing a potential risk to human and environmental health. Several methods, including direct and indirect photodegradation,...review 2024
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Guo, Baotong (author), Wen, Minzhen (author), Tang, Hongyu (author), Lishik, Sergey (author), Fan, X. (author), Zhang, Kouchi (author), Fan, J. (author)MAlSiN<sub>3</sub>:Eu<sup>2+</sup> (M = Ca, Sr) is commonly used in high-power phosphor-converted white-light-emitting diodes and laser diodes to promote their color-rendering index. However, the wide application of this phosphor is limited by the degradation of its luminescent properties in high-temperature, high-humidity, and high-sulfur...journal article 2024
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Yun, Minghui (author), Yang, Daoguo (author), Cai, Miao (author), Yan, Haidong (author), Yu, Jiabing (author), Liu, Mengyuan (author), He, Siliang (author), Zhang, Kouchi (author)Metal-oxide-semiconductor field-effect transistors (MOSFETs) undergo fatigue degradation under high thermal and electrical stresses. This process results in changes in their parasitic parameters, which can be detected using frequency domain reflectometry (FDR). Frequency domain impedance analysis is employed to characterize the various...journal article 2024
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Rocchetta, Roberto (author), Zhan, Zhouzhao (author), van Driel, W.D. (author), Di Bucchianico, Alessandro (author)Lifetime analyses are crucial for ensuring the durability of new Light-emitting Diodes (LEDs) and uncertainty quantification (UQ) is necessary to quantify a lack of usable failure and degradation data. This work presents a new framework for predicting the lifetime of LEDs in terms of lumen maintenance, effectively quantifying the natural...journal article 2024
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Jain, A. (author), Metrikine, A. (author), Steenbergen, M.J.M.M. (author), van Dalen, K.N. (author)Railway transition zones (RTZs) experience higher rates of degradation compared to open tracks, which leads to increased maintenance costs and reduced availability. Despite existing literature on railway track assessment and maintenance, effective design solutions for RTZs are still limited. Therefore, a robust design criterion is required to...journal article 2024
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van Beek, Mats (author)In dredging and land reclamation, there are growing economic and environmental pressures to make beneficial use of fine-grained/cohesive soils. Due to these pressures, there is renewed interest in researching ways to optimise the beneficial use of fine-grained soils in dredging and reclamation.<br/>Stiff cohesive clayey soils soil break up into...master thesis 2023
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Paul, Alonzo Joseph (author)This study explores the effects and severity of microcracks within Solarge’s innovative lightweight polymer-based photovoltaic modules, aiming to recommend a grading criterion specific to the company’s product range. Unlike the traditional PV modules which predominantly employ a glass and aluminum frame, Solarge utilizes lightweight, fully...master thesis 2023
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Jimenez Pelarda, Daniel (author)A moisture ingress model is developed using the FEM software COMSOL. The model uses Fick’s second law of diffusion to model the diffusion of moisture in the module. The model also reflects the temperature dependent nature of parameters affecting moisture ingress by using an Arrhenius equation. The model is validated with experimental and...master thesis 2023
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Bhadury, Abheek (author)There will soon be a huge influx of EV chargers required in the coming years. Therefore it is important to find out the lifetime of EV chargers like the DC Fast Charger for business cases. These chargers are a combination of multiple power converters to help regulate the grid AC voltage to something that can be used to charge the battery....master thesis 2023
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Zhang, Letian (author)Board-level reliability (BLR) looks at the reliability problem in the package and PCB interconnection, which is an important topic in microelectronics. The current criterion in the BLR test is to look if the connection is open, which can only detect the failure and there is no available method that can detect the degradation of the solder joints...master thesis 2023
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Muthaiyan Karthikeyen, Shriram (author)Thin-film silicon photovoltaic (PV) technology has an enormous potential in the solar power market due to its light weight, flexibility and ease of integration. This enables it to have a wide range of applications like roof top and building integrated installations making it more sustainable. Some of the other key benefits of thin-film silicon...master thesis 2023
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Durgaprasad, Sankarshan (author)This Master's Thesis is conducted in collaboration with Alewijnse, a leading maritime systems integrator in the Netherlands. The thesis aims to identify the optimal and cost-effective method of incorporating battery energy storage systems (BESS) into both new and existing DP-2 vessels, as well as DP-3 vessels. The objective is to determine the...master thesis 2023
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Bhargava, Anmol (author), Kramer, Bas (author), Kokolaki, GEORGIA (author), Xanthopoulos, Giorgos (author), Wahl-Mertes, Wanda (author)The current food production and distribution system has led to extensive degradation on both the global and local scale, requiring a transformation of the vast, urbanized rural - beyond just climate-change mitigation but radical regeneration. <br/>The ongoing intensive agricultural practices have contaminated air, soil, and water, while their...student report 2023
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van Herwerden, Thijs (author)Fiber reinforced composites have been increasingly used in the aerospace and automotive industry, due to their potential advantages for designing flexible, strong and lightweight structures. More recently they are also being considered for the manufacturing of marine propellers. Since they have the potential to lower the weight, lower the...master thesis 2023
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Wang, Keyang (author)Ceramic ultrafiltration is a promising technology for water reclamation, but issues with membrane fouling and the removal of organic micro-pollutants have limited its development. Recent research has shown that catalysis-based ultrafiltration has the potential to address these problems. In this study, catalysis-modified (CuFe2O4 and Pd)...master thesis 2023