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Deaves, M.E. (author)The kite power group at TU Delft is currently researching the use of leading edge inflatable (LEI) kites for use in power generation. A thorough understanding of the aeroelastics of these kites is paramount to the development of system simulation models and optimum kite and system designs. The current lack of understanding is therefore seen as a...master thesis 2015
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Michalopoulos, V. (author)The optimal design and preliminary strength assessment of offshore wind support structures gain growing interest given the potential to drive the costs further down. This study develops a framework for Fatigue Limit State (FLS) estimations of monopiles in a simple and quick manner so as to address site variations in an offshore wind farm (OWF)....master thesis 2015
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Ertem, Sercan (author)In recent years, the research on Vertical Axis Wind Turbines (VAWTs) have been paving the way for the very large-scale (10-20 MW) floating offshore applications. For a cost effective utilization, VAWTs need to deliver superior aerodynamic and structural performance. Nowadays, the complex ow phenomenon of VAWTs have been better understood and the...master thesis 2015
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Rezaeiha, Rahim (author)Big wind farms with big wind turbines are more cost effective and produce greener electricity compared to smaller ones. This is one of the reasons for the growth of wind turbine size during the last 3 decades. However, as wind turbines become bigger, their blades become longer, thicker and heavier. This results in larger unsteady loads on blades...master thesis 2015
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Dijkstra, Pieter (author)The thesis is focused on designing a tip-region airfoil for a multi-MW wind turbine. It is approached with the objective of optimizing the geometry of the airfoil for the best trade-off between aero-acoustics and aerodynamic requirements. Using the wind turbine noise prediction tool SILANT it is established that trailing edge noise is the most...master thesis 2015
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Reijniers, Simon (author)A wind turbine is designed to produce a maximum amount of energy at minimum cost while it withstands any possible wind condition. In the wind conditions with the highest wind speeds the wind turbine has to cope with the most extreme loads. In these most extreme cases the wind turbine is parked, the blades do not rotate, and the blades deform...master thesis 2015
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Koole, R. (author)Due to fierce competition on the electricity market, many wind energy related research projects are currently aimed at cost reduction. In order to establish cost reduction, more and more wind turbines are being clustered in (offshore) wind farms. Major drawback of wind farms however, is the energy production loss due to aerodynamic wake...master thesis 2015
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Lai, Shengling (author)The renewable energy need facilitates the development of offshore wind power. The abundant wind resource has pushed the wind farms into deep water sites. The floating VAWT concept is emerges as the times require. This research is part of Deepwind concept development. The project focuses on verifying the feasibility of using flap control to...master thesis 2015
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Kalenteridis, Stefanos (author)The reduction of the Levelised Cost of Electricity (LCoE) in wind energy, and offshore in particular, is among the main objectives of research in the academia nowadays, and a demanding task as well. Offshore wind farms are capital intensive investments and lowering uncertainties and costs throughout design, planning, installation and operational...master thesis 2015
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Galinos, C. (author)In the last years, large scale Vertical Axis Wind Turbines (VAWTs) are re-gaining a general interest in the wind energy sector as an alternative to Horizontal Axis Wind Turbines (HAWTs). However, the existing standards and guidelines for wind turbine certification do not include specific requirements for VAWT rotors. This thesis aims to study...master thesis 2015
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Veldhoven, Jarno (author)Wind energy is one of the fastest growing types of renewable energy. Today, offshore wind represents 14% of the EU wind energy market, and has a huge potential for further growth [1]. Operations and Maintenance (O&M) accounts for 18-23% of the total lifetime cost in offshore wind farms, compared to 12% onshore [2]. The offshore O&M tasks...master thesis 2015
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Cavens, W.D.K. (author)The main objective of this MSc thesis project is to investigate the load alleviation potential of a variable stiffness bi-stable morphing blade section under extreme gust conditions by designing such a blade section. This project builds on the work of Arrieta et al. and Kuder et al. and is based on the DU 93-W-210 airfoil. The bi-stable element...master thesis 2015
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van Heemst, Hans (author)The continued grow of the wind industry has resulted in an increase in turbine cluster density in wind farms. This has made the topic of wind turbine and wind farm wake aerodynamics more relevant than ever. Wind turbine wake models are used to predict the deficit and recovery of the wind velocities in the wake. The currently used wake models in...master thesis 2015
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- Cao, Jiongyi (author) master thesis 2015
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Ramelis, Vaidas (author)As building insulation and airtightness are constantly improving, ventilation plays a dominant role in fresh air supply, thermal comfort and managing heat losses and cooling needs. By designing an integrated ventilation system, it is possible to improve air quality and thermal comfort, at the same time enhancing energy efficiency. This thesis...master thesis 2015
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Lof, Bram (author)In order to be more competitive with conventional, polluting energy resources, the levelised cost of energy (LCoE) of wind turbines has to decrease significantly [1]. A method to achieve this goal is to reduce the amount of parts in a wind turbine and more specifically avoid the use of expensive and failure-prone pitch systems. Using blades...master thesis 2015
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Goossens, S.J. (author)The market share of wind energy is related to many factors, including politics, social acceptance and financial feasibility. In light of reducing the Levelised Energy Cost (LEC) generated from wind energy, power company Vattenfall is continuously looking for new ways of monitoring and improving wind turbine yield. Recent publications have shown...master thesis 2015
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Berdowski, Tom (author)Traditionally, the design of the Horizontal Axis Wind Turbine (HAWT) has relied on momentum-based methods such as the Blade Element-Momentum (BEM) models. With the growth of computational power, optimization of wind turbines by using Computational Fluid Dynamics (CFD) for the explicit wake modelling is becoming more mainstream. Wake modelling is...master thesis 2015
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Szabunia, Maksymilian (author)Kenya is, along with many other countries mainly from Sub-Saharan Africa, suffering from severe problems on access to improved drinking water sources. The country is below the water scarcity threshold and not on track to meet the Millennium Development Goal target related to this aspect, and especially its rural communities are suffering this....master thesis 2015
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Kemp, R. (author)This thesis addresses the process of airfoil optimization for vertical axis wind turbines (VAWT). The airfoils are designed for large scale turbines above 5 MW. The VAWT concept is relevant for offshore floating wind energy, because of its low center of gravity (stability) and their simplicity (low maintenance). An optimal tip speed ratio of 4-4...master thesis 2015