Searched for: subject%3A%22tunnelling%22
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Broertjes, Thomas (author)
In response to the urgent need for renewable energy amidst the escalating impacts of global warming, this study delves into the forefront of wind energy research, particularly focusing on the innovative Multi-Rotor System (MRS). The MRS concept offers a promising departure from the prevailing trend of scaling up traditional turbines, instead...
master thesis 2024
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Hinssen, Yara (author)
Aeroacoustic testing in wind tunnels is crucial for understanding and mitigating the noise generation mechanisms in several devices while maintaining satisfactory aerodynamic performance in the conceptual design stage. However, current measurements in closed-section wind tunnels face challenges in terms of installation, due to the effect of the...
master thesis 2024
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Eftekhar, Shadab (author)
The Flying-V, a novel aircraft design developed at Delft University of Technology, presents a revolutionary flying wing transport aircraft with a remarkable 20% reduction in energy consumption compared to traditional twin-aisle planes. <br/>This thesis project delves into the study of optimizing the Flying-V's landing performance, emphasizing...
master thesis 2024
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Jiang, Xi (author), Zhang, X. (author), Zhang, Xiao (author), Long, Luyuan (author), Bai, Yun (author), Huang, Baoshan (author)
The development of modern cities has often led to increased traffic congestion and limited usable space. One effective solution to these problems is to construct roadway tunnels, which can expand urban space and alleviate traffic congestion. However, building large underpass tunnels in urban areas, especially in soft ground, presents...
journal article 2024
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van Nijen, D.A. (author), Stevens, Tristan (author), Mercimek, Yavuzhan (author), Yang, G. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author), Isabella, O. (author), Manganiello, P. (author)
Nowadays, an increasing share of photovoltaic (PV) systems makes use of module- or submodule-level power electronics (PE). Furthermore, PE is used in stand-alone devices powered by PV-storage solutions. One way to facilitate further implementation of PE in PV applications is to integrate PE components into crystalline silicon PV cells. Herein...
journal article 2024
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Cai, Jitao (author), Wu, Jiansong (author), Yuan, S. (author), Reniers, G.L.L.M.E. (author), Bai, Yiping (author)
Focusing on the effective configuration of emergency response systems in utility tunnels, this study proposes an innovative approach to optimize existing emergency response systems based on a consequence rapid prediction model and genetic algorithm. In the proposed approach, the interactions between different emergency response components are...
journal article 2024
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Ujjaini Kempaiah, K. (author), Piovesan, Tommaso (author), Zachos, Pavlos K. (author), Michaelis, Dirk (author), Gebbink, Roy (author), van Rooijen, Bart (author), Prieto, Daniel Gil (author), MacManus, David (author), Sciacchitano, A. (author), Sheaf, Christopher (author)
Unsteady inlet flow distortion can influence the stability and performance of any propulsion system, in particular for more novel, short and slim intakes of future aero-engine configurations. As such, the requirement for measurement methods able to provide high spatial resolution data is important to aid the understanding of these flow fields...
journal article 2024
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Li, Peinan (author), Liu, Xue (author), Jiang, Xi (author), Zhang, X. (author), Wu, Jun (author), Chen, Peixin (author)
Quasi-rectangular shield tunneling is a cutting-edge trenchless method for constructing metro tunnels with double tubes, owing to its advantages in saving underground space and reducing ground disturbance. However, the conventional quasi-rectangular shield tunneling method is not applicable when constructing a tunnel without a center pillar,...
journal article 2024
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Glab, K. (author), Wehrmeyer, G. (author), Thewes, M. (author), Broere, W. (author)
Designing the main drive motor capacity of Earth Pressure Balanced Tunnel Boring Machines (EPB TBMs) is a crucial task for every EPB tunnelling project. The machine needs to be equipped with sufficient power to master the geotechnical conditions of the respective project. On the other hand, overpowering the machine should be avoided for...
journal article 2024
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't Hart, C.M.P. (author), Morales Napoles, O. (author), Jonkman, Sebastiaan N. (author)
Immersed tunnels are positive buoyant structures during installation and negative buoyant after installation. A tunnel is composed of sequential immersed elements that are coupled to each other in joints. Tunnel elements consist of segments which are compressed to each other by longitudinal post-tensioning. After immersion the tunnel is...
journal article 2024
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Jiang, Xi (author), Zhu, Hehua (author), Yan, Zhiguo (author), Zhang, Fengshou (author), Huang, Xinyan (author), Leng, Zhen (author), Yan, Chuanqi (author), Hua, Nan (author), Zhang, X. (author)
With the rapid urbanization and development of metropolises, urban road tunnels have been constructed at an increasing rate, significantly alleviating urban traffic pressure, and improving urban resilience. Fire hazards have become a major threat to modern road tunnels due to the growing popularity of electric vehicles and high-density...
journal article 2024
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Mertens, C. (author), Grille Guerra, A. (author), van Oudheusden, B.W. (author), Fehrs, Michael (author), Ritter, Markus R. (author)
The effects of the wing skin distortion on the boundary layer of a highly flexible wing are analyzed in a wind tunnel experiment using infrared thermography measurements. Considerable differences in the boundary layer flow are observed when comparing the sections of the wing near the ribs, where the design shape of the wing is preserved, and...
book chapter 2024
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Marques Cavaleiro Machado Jorge, Antonio (author)
master thesis 2023
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Verkade, Lars (author)
The construction sector plays a significant role in the environment, and concrete structures constitute a substantial portion of this sector. The government is actively seeking ways to reduce the environmental impact of construction activities by promoting a more sustainable approach. In the Netherlands, a considerable number of repetitive...
master thesis 2023
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Gobeil, J. (author)
doctoral thesis 2023
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van der Hoek, D.C. (author)
Offshore wind farms suffer substantial energy losses due to the interference of wind turbine wakes, with estimates indicating losses of approximately 10%. This thesis aims to advance the state of the art of wind farm flow control techniques for maximizing wind farm power performance. Wind farm flow control can be divided into three categories:...
doctoral thesis 2023
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van der Drift, Sophie (author)
Adequate mechanical ventilation serves as the first and most important life-saving appliance during a tunnel fire. The most severe threat during a tunnel fire is the smoke. Most victims get incapacitated by the smoke, after which they decease from intoxication and/or suffocation. By means of mechanical ventilation, smoke-free escape routes via...
master thesis 2023
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Tziaros, Filotas (author)
The need to reduce greenhouse gas emissions is emergent throughout every industrial sector worldwide. For aviation, this has opened a market gap for small scale electric aircraft configurations (e-V/STOL). These configurations are very diverse and they are classified based on how lift is obtained. However, their flight...
master thesis 2023
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Bogaerts, Charlie (author)
This study aims to quantify the aerodynamic behaviour of fixed pitch rotors with a diameter of 12.7 cm in axial descent, and its contribution to the attitude oscillations found for quadcopters under similar flight conditions. Wind tunnel tests are performed with an isolated rotor, as well as a complete quadcopter mounted inside a gimbal that...
master thesis 2023
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Prabendra Ardhan Atmakusuma, Prabendra Ardhan (author)
The Noordtunnel is an immersed tunnel open to roadway service since 1990 in The Netherlands. Over the past thirty years of its operation time, a significant differential settlement behaviour has been observed, and this ongoing settlement potentially imposes safety concerns to the tunnel, such as joint leakage. However, the underlying factor...
master thesis 2023
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