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- Vimalakanthan, K. (author), Bot, E.T.G. (author), Savenije, F.J. (author) conference paper 2023
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- Vitulli, J.A. (author), Eeckels, C.B.H. (author), Bot, E.T.G. (author), Verhoef, J.P. (author), Bergman, G. (author), van der Werff, P.A. (author) report 2023
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- Vitulli, J.A. (author), Eeckels, C.B.H. (author), Bot, E.T.G. (author), Verhoef, J.P. (author), Bergman, G. (author), van der Werff, P.A. (author) report 2023
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- Vitulli, J.A. (author), Eeckels, C.B.H. (author), Bot, E.T.G. (author), Verhoef, J.P. (author), Bergman, G. (author), van der Werff, P.A. (author) report 2023
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- Kanev, S. (author), Bot, E.T.G. (author) article 2021
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Bot, E.T.G. (author)The publicly available Dutch Offshore Wind Atlas (DOWA) has been created within the DOWA-project, that has been executed by the project partners KNMI, Whiffle and ‘ECN part of TNO’, with support from the Topsector Energy subsidy from the Ministry of Economic Affairs and Climate Policy (SDE+ Hernieuwbare Energie Call). The DOWA provides accurate...report 2020
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Bot, E.T.G. (author), Kanev, S. (author)In a wind farm, turbines affect each other through their wakes, decreasing their power production and increasing the structural loading (wear and tear) of their components. It is still a common practice to operate wind turbines individually, each maximizing its own power production. Such strategy ignores the wake effects and is thus not optimal...other 2020
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Duncan, J.B. (author), van der Werff, P.A. (author), Bot, E.T.G. (author)In order to better understand North Sea wind conditions, analyses were performed on wind speed and direction measurements by light-detection and ranging (lidar) at eight offshore measurement locations distributed throughout the North Sea. Lidar enabled measurement of the North Sea wind conditions at relatively high altitudes (i.e. ≤ 315 m) and...report 2019
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Bulder, B.H. (author), Bot, E.T.G. (author), Wiggelinkhuizen, E.J. (author)RVO assigned ECN part of TNO to calculate the potential energy yield (P501) for the wind farm zone Hollandse Kust Noord (HKN) Wind Farm Site V that will be tendered in 2019. The yield is determined for 3 different wind turbine types, using wind conditions for HKN as can be found on the RVO website. The wind turbine models are based on state of...report 2019
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Bulder, B.H. (author), Bot, E.T.G. (author), Bedon, G. (author), Energieonderzoek Centrum Nederland (author)This report contains the results of a scoping study performed by ECN wind energy for the Ministry of Economic Affairs of the Netherlands. The Ministry of Economic Affairs has assigned ECN to determine the optimal wind farm power density, in MW/km, for future offshore wind farms to be installed. The wind farms considered will be developed after...report 2018
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Bulder, B.H. (author), Bot, E.T.G. (author), Bedon, G. (author), Energieonderzoek Centrum Nederland (author)The potential energy yield of the Hollandse Kust (noord) (HKN) Wind Farm Zone and its effect on the energy production of the existing wind farms, Prinses Amalia and OWEZ, is calculated with FARMFLOW, ECNs wind farm aerodynamic performance analysis tool. The HKN wind farm zone consists of a single site which is designated to be developed with a...report 2018
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Ozemir, H. (author), Bot, E.T.G. (author)In this study an advanced wake modeling for wind turbine wakes is presented. The wake model is based on the idea presented by Crespo where the Navier-Stokes equations are written in parabolic form with the assumption that the flow is dominant in the wake direction and there is no information traveling upstream. Various components of this model...conference paper 2018
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Bulder, B.H. (author), Bot, E.T.G. (author), Energieonderzoek Centrum Nederland (author)Bij de ontwikkeling van het windpark Flevoland Noord, onder werknaam Windplan Blauw, zijn met het oog op de toekomstige uitbreiding van Lelystad Airport vragen gerezen met betrekking tot de vliegveiligheid met kleine vliegtuigen in relatie tot de zoggen achter windturbines. Om deze vragen te kunnen beantwoorden is informatie nodig over de...report 2017
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Bot, E.T.G. (author), Energieonderzoek Centrum Nederland (author)In the LAWINE project, several LiDAR systems are evaluated, among which Wind Iris from Avent Lidar Technology. This LiDAR is installed on the nacelle of a 2.5MW research wind turbine at the ECN test site EWTW. Two measurement campaigns have been organised with this LiDAR system: one as a forward looking LiDAR system to measure the horizontal...report 2016
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- Bulder, B.H. (author), Bot, E.T.G. (author), Marina, A.J. (author), Energieonderzoek Centrum Nederland (author) report 2016
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Bot, E.T.G. (author), Energieonderzoek Centrum Nederland (author)For the accurate calculation of wind turbine wake effects in (large) offshore wind farms, ECN has developed the software tool FarmFlow. FarmFlow calculates the average velocities and turbulence intensities inside a wind farm. The wake model in FarmFlow is a 3D parabolised Navier-Stokes code, using a k-? turbulence model to account for turbulent...report 2015
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Bulder, B.H. (author), Bot, E.T.G. (author), Energieonderzoek Centrum Nederland (author)In this report the influence of a 1400 MW wind farm at the Borssele Zone on the energy production of the nearby Belgian wind farms is calculated with FARMFLOW. Next to that the analysis and predictions are listed of 6 different design options for the wind farms at the Borssele Wind Farm Zone. The 6 different wind farm designs vary in: <BR...report 2015
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Bot, E.T.G. (author), Energieonderzoek Centrum Nederland (author)One of the tasks of the LAWINE project concerns the analysis and development of measurement technology and data processing technology to apply ground based LiDARs to wind resource assessments and turbulence assessments. Since turbulence intensity measurement with the ground based LiDAR principle requires special attention, the current study...report 2014
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Brand, A.J. (author), Bot, E.T.G. (author), Ozdemir, H. (author), Energieonderzoek Centrum Nederland (author)The ability is demonstrated to calculate wind farm wakes on the basis of ambient conditions that were calculated with an atmospheric model. Specifically, comparisons are described between predicted and observed ambient conditions, and between power predictions from three wind farm wake models and power measurements, for a single and a double...conference paper 2013
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Brand, A.J. (author), Bot, E.T.G. (author), Eecen, P.J. (author), Energieonderzoek Centrum Nederland (author)This paper addresses the effect of clusters of wind farms on the flow above the wind farms and their power productions. In the first part past and present modelling approaches are reviewed. In the second part computational results are presented and discussed. These results comprise the wind speeds within, in between and above two offshore wind...conference paper 2012
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