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Toitos, Christos (author)Electrical stimulation has emerged as a promising therapeutic modality for the treatment of various neurological disorders such as Parkinson's disease, chronic pain, epilepsy, and depression. In addition, recent studies have provided evidence supporting the effectiveness of electrical stimulation as a treatment option for patients with chronic...master thesis 2023
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Korenhof, Sophie A. (author), Fang, Yuan (author), Luo, Jie (author), van der Cammen, T.J.M. (author), Raat, Hein (author), van Grieken, Amy (author)Background: Due to the aging population, there is a need for monitoring well-being and safety while living independently. A low-intrusive monitoring system is based on a person’s use of energy or water. Objective: The study's objective was to provide a systematic overview of studies that monitor the health and well-being of older people using...review 2023
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Datta, Sattama (author)With the increasing environmental concerns, the world is moving towards rapid decarbonization, and to meet the growing energy demand, more renewable energy sources like solar, Wind are getting added to the existing Distribution grid. The addition of new loads like Electric vehicles (EV), Heat pumps, etc. is putting additional pressure on the...master thesis 2022
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van Willigen, D.M. (author)This thesis describes the design, prototyping and evaluation of matrix-based clamp-on ultrasonic flow meters. Several new measurement techniques are presented as well as an Application-Specific Integrated Circuit (ASIC) designed for accurate measurement of flow velocity with matrix transducers.<br/><br/>The influence of circuit topologies on the...doctoral thesis 2022
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Doorman, Anniek (author)Intermittent renewable energy supply changes in time and is uncertain, and needs to be balanced (i.e. matched) with demand at all times, which requires system flexibility. Congested distribution and transmission grids in the Netherlands and Germany highlights the importance of providing system flexibility. Residential, commercial and industrial...master thesis 2022
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Boers, Milo (author)Nonintrusive Load Monitoring (NILM) can be used to disaggregate household energy<br/>usage collected from a central meter to the level of individual appliances, but has so far mostly been applied in controlled, small-scale settings. Further potential such as the application for energy efficiency classification and management have remained...master thesis 2022
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Glynis, Konstantinos (author)Water utilities face many challenges, including pipe bursts that cause significant non-revenue water losses. Detecting those bursts early is important for the water sector in its path to achieve sustainable water resource management. This study presents a scalable data-driven methodology for burst detection in water distribution systems that is...master thesis 2022
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van der Goes, Barrie (author)The Hydrogen Heating Studies project in the Green Village at the TU Delft researches the safe application of hydrogen to heat buildings. This study aims to evaluate hydrogen sensor technologies for residential safety, including the determination of the sensor location inside a standard (Dutch) metering cabinet that achieves the fastest response...master thesis 2022
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De Vette, V.G. (author), Veeger, H.E.J. (author), van Dijk, M.P. (author)More insight into in-field mechanical power in cyclical sports is useful for coaches, sport scientists, and athletes for various reasons. To estimate in-field mechanical power, the use of wearable sensors can be a convenient solution. However, as many model options and approaches for mechanical power estimation using wearable sensors exist, and...review 2022
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Massaad Mouawad, J.M. (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...journal article 2022
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Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Noothout, E.C. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Common clamp-on ultrasonic flow meters consist of two single-element transducers placed on the pipe wall. Flow speed is measured noninvasively, i.e., without interrupting the flow and without perforating the pipe wall, which also minimizes safety risks and avoids pressure drops inside the pipe. However, before metering, the transducers have...journal article 2022
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Zhao, Jian (author), Fang, Shangbiao (author), Liu, G. (author), Qi, Weixiao (author), Bai, Yaohui (author), Liu, Huijuan (author), Qu, Jiuhui (author)Biodegradation plays an important role in the removal of organic micropollutants (OMPs) during riverbank filtration (RBF) for drinking water production. The ability of ammonia-oxidizing microorganisms (AOM) to remove OMPs has attracted increasing attention. However, the distribution of AOM in RBF and its role in the degradation of OMPs...journal article 2022
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Pelka, S. (author), Kern, Dominik (author), George, Jan (author)Platforms facilitate the participation of households and their energy assets in the energy system. Platform services are considered attractive for households if the energy cost savings exceed the transaction cost of the service. We conceptualize different platform architecture, quantify their transaction cost and compare it to potential energy...conference paper 2022
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Todorović, Uglješa (author), Frejo, José Ramón D. (author), De Schutter, B.H.K. (author)The Model Predictive Control (MPC) framework has shown great potential for the control of Variable Speed Limits (VSLs) and Ramp Metering (RM) installations. However, the implementation to large freeway networks remains challenging. One major reason is that, by considering the VSLs to be discrete decision variables, an extremely difficult Mixed...journal article 2022
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Massaad Mouawad, J.M. (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...journal article 2022
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Petropoulou, Anastasia (author)According to the European Commission, buildings are responsible for approximately 40% of the EU energy consumption and 36% of the CO2 emissions, resulting in the largest energy consumer in Europe. Especially, the reduction of energy consumption for heating of residential dwellings has gained more and more interest in the last decades. Although...master thesis 2021
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Massaad Mouawad, J.M. (author)Ultrasonic flow meters are widely applied to measure flow in a variety of applications. The vast majority of ultrasonic flow meters are based on the measurement of the transit time of an acoustic pulse through the fluid. This can either be done in-line, by inserting a spool piece with ultrasonic transducers into the pipe carrying the fluid, or...doctoral thesis 2021
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Jia, Yueyi (author), Zheng, Feifei (author), Zhang, Qingzhou (author), Duan, Huan Feng (author), Savic, Dragan (author), Kapelan, Z. (author)Hydraulic modeling of a foul sewer system (FSS) enables a better understanding of the behavior of the system and its effective management. However, there is generally a lack of sufficient field measurement data for FSS model development due to the low number of in-situ sensors for data collection. To this end, this study proposes a new method...journal article 2021
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Mokhtar, Maizura (author), Robu, Valentin (author), Flynn, David (author), Higgins, Ciaran (author), Whyte, Jim (author), Loughran, Caroline (author), Fulton, Fiona (author)The energy landscape for the Low-Voltage (LV) networks is undergoing rapid changes. These changes are driven by the increased penetration of distributed Low Carbon Technologies, both on the generation side (i.e. adoption of micro-renewables) and demand side (i.e. electric vehicle charging). The previously passive ‘fit-and-forget’ approach to...journal article 2021
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Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Current ultrasonic clamp-on flow meters consist of a pair of single-element transducers that are carefully positioned before use. This positioning process consists of manually finding the distance between the transducer elements, along the pipe axis, for which maximum signal-to-noise ratio (SNR) is achieved. This distance depends on the sound...journal article 2021