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Merkx, E.P.J. (author), Lensvelt, T.G. (author), van der Kolk, E. (author)
Building-integrated photovoltaics are drawing much attention to make the built environment self-sufficient in terms of electricity. Luminescent solar concentrators (LSCs) can provide this electricity generation when used as photovoltaic windows. Paramount to an efficient LSC are non-overlapping absorption and emission spectra, to avoid self...
journal article 2019
document
Merkx, E.P.J. (author), van der Kolk, E. (author)
SiAlON window coatings are applied on an industrial scale to achieve e.g. scratch-resistance and anti-reflection. Doping these SiAlONs with rare-earths adds luminescent functionality, which could be applied in photovoltaics. By using a combinatorial reactive sputtering approach, an amorphous thin film composition library with a Si:Al ratio...
journal article 2019
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van der Kolk, E. (author)
The temperature dependent luminescence properties of Yb2+ doped in NaI, SrI2 and LaI3 powders, prepared by a fast synthesis method involving the rapid melting and quenching in vacuum are reported. The 4f→5d excitation and emission spectra obtained for SrI2:Yb2+ were found to be in accordance with earlier work validating the synthesis methods. In...
journal article 2019
document
van der Kolk, N.J. (author), Bordogna, G. (author), Mason, J.C. (author), Desprairies, P. (author), Vrijdag, A. (author)
In this paper, a vessel model for the performance of wind-assisted ships is combined with a routing tool to assess the fuel savings available from the installation of both one and two Flettner rotors when travelling along a Great Circle Route path. This is combined with an economic analysis to assess commercial viability for these hybrid...
conference paper 2019
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van der Kolk, Nico (author)
journal article 2018
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Merkx, E.P.J. (author), van der Kolk, E. (author)
Understanding the behavior of combinatorially developed luminescent materials requires detailed characterization methods that have been lacking thus far. We developed a device for directly surveying the luminescent properties of thin-film libraries created through combinatorial gradient sputter deposition. Step-scan recorded excitation-,...
journal article 2018
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Koppen, S. (author), van der Kolk, M. (author), van Kempen, F.C.M. (author), de Vreugd, J (author), Langelaar, M. (author)
The stringent and conflicting requirements imposed on optomechanical instruments and the ever-increasing need for higher resolution and quality imagery demands a tightly integrated system design approach. Our aim is to drive the thermomechanical design of multiple components through the optical performance of the complete system. To this end,...
journal article 2018
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Merkx, E.P.J. (author), ten Kate, O.M. (author), van der Kolk, E. (author)
The phenomenon of self-absorption is by far the largest influential factor in the eficiency of luminescent solar concentrators (LSCs), but also the most challenging one to capture computationally. In this work we present a model using a multiple-generation light transport (MGLT) approach to quantify light transport through single-layer...
journal article 2017
document
Budde, B (author), Luo, H. (author), Dorenbos, P. (author), van der Kolk, E. (author)
In this work it is shown that CaZnOS:Eu<sup>2+</sup> has no Eu<sup>2+</sup> emission even at low temperature. The observed and earlier reported red emission originates from a CaS:Eu<sup>2+</sup> impurity phase. By means of washing the as-prepared samples with diluted nitride acid, we were able to remove the CaS impurity phase and study the...
journal article 2017
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
A Reynolds-Averaged Navier Stokes computational fluid dynamics (RANS-CFD) package will be one of the primary tools used during the development of a performance prediction program for Wind-Assisted commercial ships. The modelling challenge presented by large separated flow structures in the wake of the sailing ship points to a conscientious...
conference paper 2017
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van der Kolk, M. (author), van der Veen, G.J. (author), de Vreugd, J (author), Langelaar, M. (author)
The design of high performance instruments often involves the attenuation of poorly damped resonant modes. Current design methods typically rely on informed trial and error based modifications to improve dynamic performance. In this contribution, we present a multi-material topology optimization as an alternative, systematic methodology to...
conference paper 2016
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
conference paper 2016
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van der Kolk, Nico (author), Bordogna, G. (author)
journal article 2016
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
Wind energy as an auxiliary form of propulsion for commercial ships has again become of great interest as a possible response to volatile fuel prices and increasingly stringent environmental regulations. A well-founded performance prediction tool is a key prerequisite for the further development of this promising technology, and with the support...
conference paper 2016
document
van der Kolk, N.J. (author)
This paper deals with the hydrodynamic sideforce production of a wind-assisted ship. The subject is introduced, both in physical terms, and with an overview of current and recent work. The importance of the hydrodynamic sideforce is established, before classical models are reviewed. Finally, the complications arising from diverse appendage...
conference paper 2016
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Bordogna, G. (author), van der Kolk, N.J. (author), Huijsmans, R.H.M. (author), Keuning, J.A. (author), Fossati, F.V. (author)
Development of a Performance Prediction Program for Commercial Ships
poster 2015
document
van der Kolk, N.J. (author)
master thesis 2014
document
van der Kolk, Nico J. (author)
master thesis 2014
document
Andriessen, J. (author), van der Kolk, E. (author), Dorenbos, P. (author)
journal article 2007
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van der Voordt, D.J.M. (author), van der Kolk, M (author)
Het lijkt niet logisch: eerst een leeg kantoorpand of ander bouwwerk verbouwen om het geschikt te maken voor een andere functie, om het na een aantal jaren weer terug te verbouwen naar de oorspronkelijke functie. Toch kan het een interessante optie zijn voor (naar verwachting) langdurig leegstaande panden. Bijvoorbeeld als de kantorenmarkt een...
book chapter 2007
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