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Snelder, M. (author), Smit, S. (author), Schadd, M. (author), Walraven, E. (author)Network design problems such as the optimization of road capacities, public transport lines and frequencies, mobility hub locations, shared mobility services and traffic signal settings have been extensively studied in literature using sequential bi-level optimization. However, due to the computational burden, the design and response spaces that...conference paper 2023
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Vergara, P.P. (author), Giraldo, J.S. (author), Salazar, M. (author), Panda, N.K. (author), Nguyen, P.H. (author)A photovoltaic (PV)-rich low-voltage (LV) distribution network poses a limit on the export power of PVs due to the voltage magnitude constraints. By defining a customer export limit, switching off the PV inverters can be avoided, and thus reducing power curtailment. Based on this, this paper proposes a mixed-integer nonlinear programming (MINLP)...article 2023
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Dukalski, M. (author), Rovetta, D. (author), van der Linde, S.G. (author), Möller, M. (author), Neumann, N. (author), Phillipson, F. (author)Much of recent progress in geophysics can be attributed to the adaptation of heterogeneous high-performance computing architectures. It is projected that the next major leap in many areas of science, and hence hopefully in geophysics too, will be due to the emergence of quantum computers. Finding a right combination of hardware, algorithms, and...article 2023
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Hasan, M.M. (author), Avramis, N. (author), Ranta, M. (author), El Baghdadi, M. (author), Hegazy, O. (author)This study presents the optimization and tuning of a simulation framework to improve its simulation accuracy while evaluating the energy utilization of electric buses under various mission scenarios. The simulation framework was developed using the low fidelity (Lo-Fi) model of the forward-facing electric bus (e-bus) powertrain to achieve the...article 2023
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Giraldo, J.S. (author), Bañol Arias, N. (author), Vergara, P.P. (author), Vlasiou, M. (author), Hoogsteen, G. (author), Hurink, J.L. (author)This paper introduces a AC stochastic optimal power flow (SOPF) for the flexibility management of electric vehicle (EV) charging pools in distribution networks under uncertainty. The AC SOPF considers discrete utility functions from charging pools as a compensation mechanism for eventual energy not served to their charging tasks. An application...article 2023
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Calvi, L. (author), van Zandvoort, R. (author), Leufkens, L. (author), Hupperetz, J.F.B. (author), Habets, R. (author), Mann, D. (author), Meulendijks, N. (author), Verheijen, M.A. (author), Elen, K. (author), Hardy, A. (author), Van Bael, M.K. (author), Buskens, P. (author)The switching performance of W/VO2 nanoparticles in thermochromic glass laminates was investigated. W/VO2 powder was prepared, and displayed a phase transition temperature and switching enthalpy of 20.9 °C and 37.5 ± 0.2 J g-1, respectively. Using wet bead milling, the particle size was reduced from 24 ± 2 um to 120 ± 10 nm. In the same process,...article 2023
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Mulderij, J. (author), Aardal, K.I. (author), Chiscop, I. (author), Phillipson, F. (author)Due to the physics behind quantum computing, quantum circuit designers must adhere to the constraints posed by the limited interaction distance of qubits. Existing circuits need therefore to be modified via the insertion of SWAP gates, which alter the qubit order by interchanging the location of two qubits’ quantum states. We consider the...conference paper 2023
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- Sahoo, S. (author), van Stralen, J.N.P. (author), Zuidema, C. (author), Sijm, J.P.M. (author), Yamu, C. (author), Faaij, A.P.C. (author) article 2022
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)Ultrasonic flow meters (UFMs) based on transducer arrays offer several advantages. With electronic beam steering, it is possible to tune the steering angle of the beam for optimal signal-tonoise ratio (SNR) upon reception. Moreover, multiple beams can be generated to propagate through different travel paths, covering a wider section of the flow...article 2022
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Geerts, D. (author), Medina, R. (author), van Sark, W. (author), Wilkins, S. (author)The electrification of the transport industry is rapidly becoming a solution to mitigate the greenhouse emissions problem. However, this electrification faces multiple challenges related to higher operational cost and limited charging capacity. To cope with these challenges, within the European project URBANIZED, an optimization algorithm has...conference paper 2022
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Coutino, M. (author), Uysal, F. (author), Anitori, L. (author)This paper introduces a general framework for waveform-aware optimal window design for mismatch processing. First, the linear relationship between the window function and the output of the mismatch filter, for both frequency and time windowing and a particular waveform, is modeled. Making use of such a relation, typical window constraints are...conference paper 2022
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van Meer, M. (author), Witvoet, G. (author), Oomen, T. (author)Switched reluctance motors are appealing because they are inexpensive in both construction and maintenance. The aim of this paper is to develop a commutation function that linearizes the nonlinear motor dynamics in such a way that the torque ripple is reduced. To this end, a convex optimization problem is posed that directly penalizes torque...article 2022
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Valcke, S.L.A. (author), Bigaj-van Vliet, A.J. (author), Allaix, D.L. (author), Braendstrup, C. (author), Visser, J.H.M. (author), Garzon Amortegui, J.F. (author), Wang, S.J. (author), Godoi Bizarro, D.E. (author), Szklarz, S.P. (author), Barros, E. (author)Sustainable development is a complex, multi-disciplinary and multi-sectoral challenge with often contradicting objectives. As such, in the strongly fragmented construction sector often only single aspects of the challenge are subject of innovations. Therefore the construction sector faces a huge challenge to meet multiple goals set a.o. in the...conference paper 2022
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Xiao, C. (author), Lin, H.-X. (author), Leeuwenburgh, O. (author), Heemink, A. (author)History matching can play a key role in improving geological characterization and reducing the uncertainty of reservoir model predictions. Application of reservoir history matching is restricted by the huge computational cost by amongst others the many runs of the full model. Surrogate models with a reduced complexity are therefore used to...article 2022
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Tabasi, A. (author), Lazzaroni, M. (author), Brouwer, N.P. (author), Kingma, I. (author), van Dijk, W. (author), de Looze, M.P. (author), Toxiri, S. (author), Ortiz, J. (author), van Dieën, J.H. (author)The risk of low-back pain in manual material handling could potentially be reduced by back-support exoskeletons. Preferably, the level of exoskeleton support relates to the required muscular effort, and therefore should be proportional to the moment generated by trunk muscle activities. To this end, a regression-based prediction model of this...article 2022
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Rasheed, M.B. (author), Rodriguez Moreno, M.D. (author)This paper considers the time of use (TOU) pricing scheme to propose a consumer aware pricing policy (CAPP), where each customer receives a separate electricity pricing signal. These pricing signals are obtained based on individualized load demand patterns to optimally manage the flexible load demand. The main objective of CAPP is to reduce the...article 2022
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Wezeman, R.S. (author), Chiscop, I. (author), Anitori, L. (author), van Rossum, W.L. (author)Compressive sensing is a signal processing technique used to acquire and reconstruct sparse signals using significantly fewer measurement samples. Compressive sensing requires finding the most sparse solution to an underdetermined linear system, which is an NP-hard problem and as a consequence in practise is only solved approximately. In our...conference paper 2022
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Kupper, F. (author), Mentink, P. (author), Avramis, N. (author), Meima, N. (author), Lazovik, E. (author), Wilkins, S. (author), Willems, F. (author)Self-learning energy management is a promising concept, which optimizes real-world system performance by automated, on-line adaptation of control settings. In this work, the potential of self-learning capabilities related to optimization is studied for energy management in Plug-in Hybrid Electric Vehicles (PHEV). These vehicles are of great...conference paper 2022
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)Clamp-on ultrasonic flow meters (UFMs) are installed on the outside of the pipe wall. Typically, they consist of two single-element transducers mounted on angled wedges, which are acoustically coupled to the pipe wall. Before flow metering, the transducers are placed at the correct axial position by manually moving one transducer along the pipe...article 2022
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Younis, A. (author), Benders, R. (author), Ramirez, J. (author), de Wolf, M. (author), Faaij, A. (author)The large-scale integration of variable renewable energy sources into the energy system presents techno–economic challenges. Long–term energy system optimization models fail to ade quately capture these challenges because of the low temporal resolution of these tools. This limitation has often been addressed either by direct improvements within...article 2022