Searched for: author%3A%22Pothof%2C+I.W.M.%22
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Khlebnikova, E. (author), Pothof, I.W.M. (author), van der Zwan, Sam (author), Loverdou, Lefki (author)
This paper presents challenges in the control of 5GDHC networks and proposes an approach for the robust control design of these networks. Temperatures are low and temperature differences are small in 5GDHC networks, in order to minimise heat losses in the distribution network and directly utilise low-temperature heat sources. Therefore, the...
journal article 2024
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Marszal-Pomianowska, Anna (author), Motoasca, Emilia (author), Pothof, I.W.M. (author), Felsmann, Clemens (author), Heiselberg, Per (author), Cadenbach, Anna (author), Leusbrock, Ingo (author), O'Donovan, Keith (author), Petersen, Steffen (author), Schaffer, Markus (author)
Buildings can deliver short-term thermal energy storage by utilising the thermal capacity of the building construction and/or by activating the water tanks included in the heating/cooling installation. The flexibility potential of demand management using decentralized thermal energy storage has been quantified in many theoretical modelling...
journal article 2024
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Pothof, I.W.M. (author), Vreeken, D. (author), van Meerkerk, M. (author)
The energy required for space heating amounts to approximately 68% of the total energy demand of existing buildings in Europe. The heat requirement of a building, and thus its carbon emission, can be lowered by optimizing the supply and return temperature of the heating system. A lower supply temperature enables a wider variety of transition...
journal article 2023
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Pothof, I.W.M. (author), Van Den Oever, R. (author), Huesken, L. (author)
The energy required for space heating amounts to approximately 70% of the total energy demand of existing buildings in Europe. Decarbonization of the heat demand of existing buildings is one of the grand challenges in the energy transition and sustainable district heating is a promising solution in many neighborhoods. The construction cost of...
conference paper 2023
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Knepper, S. (author), Pothof, I.W.M. (author), Itard, L.C.M. (author), Infante Ferreira, C.A. (author)
A comparative study for a representative case district in the Netherlands with around 2500 dwellings has been executed with the purpose of identifying the best solution for a Low Temperature District Heating (LTDH) with Low Temperature Geothermal Heat (LTGH) as the main heat source. The district is presently connected to the Dutch gas network....
conference paper 2021
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van der Zwan, Sam (author), Pothof, I.W.M. (author)
Future district heating systems (DHS) will be supplied by renewable sources, most of which are limited in temperature and flow rate. Therefore, operational optimization of DHS is required to maximize the use of renewable sources and minimize (fossil) peak loads. In this paper, we present a robust and fast model-predictive control approach to...
journal article 2020
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Horváth, K. (author), van Esch, B. (author), Vreeken, D. (author), Pothof, I.W.M. (author), Baayen, J. (author)
This study presents convex modeling of drainage pumps so that real-time control systems can be implemented to minimize their energy use. A convex model is built based on pump curves and then used in mixed-integer optimization to allow pumps to be turned on or off. It is implemented as an extension to the open source software package RTC-Tools...
journal article 2019
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Post, J.A.B. (author), Pothof, I.W.M. (author), Dirksen, J. (author), Baars, E. J. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
Gully pots are essential assets designed to relief the downstream system by trapping solids and attached pollutants suspended in runoff. This study applied a methodology to develop a quantitative gully pot sedimentation and blockage model. To this end, sediment bed level time series from 300 gully pots, spanning 15 months, were collected. A...
journal article 2016
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Post, J.A.B. (author), Pothof, I.W.M. (author), Ten Veldhuis, J.A.E. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
It remains unknown how lateral house connections affect the performance of the sewer system, since the assessment of serviceability is mainly based on the state of the main sewer system. Further insight into the contribution of lateral house connections to the overall level of service provided can aid to target investments to parts of the system...
conference paper 2014
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Pothof, I.W.M. (author), Karney, B.W. (author)
book chapter 2012
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Pothof, I.W.M. (author), Clemens, F.H.L.R. (author)
Air-water flow is an undesired condition in water pipelines and hydropower tunnels. Water pipelines and wastewater pressure mains in particular are subject to air pocket accumulation in downward sloping reaches, such as inverted siphons or terrain slopes. Air pockets cause energy losses and an associated capacity reduction. Despite its practical...
conference paper 2012
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Leruth, P. (author), Pothof, I.W.M. (author), Naja, F. (author)
This paper presents a validation of the surge modeling results as well as lessons learnt from the commissioning test of the Shuweihat Water Transmission Scheme in the UAE. The Scheme is divided in two systems, The first system (Lot A) transmits water from Shuweihat to Mirfa (100 km). The second (Lot C) is from Mirfa to Mussafah (150 km). The...
conference paper 2012
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Rombouts, P.M.M. (author), Clemens, F.H.L.R. (author), Ten Veldhuis, J.A.E. (author), Pothof, I.W.M. (author), Langeveld, J.G. (author)
Van 3 tot en met 7 september 2012 is de negende Urban Drainage Modelling conferentie gehouden in Belgrado, de hoofdstad van Seme. Hieronder volgt een verslag van de indrukken die zijn opgedaan in Servië en de belangrijkste, wetenschappelijke ontwikkelingen die aan de orde zijn gekomen. Het congres had een vol wetenschappelijk programma, mede...
journal article 2012
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Leruth, P. (author), Pothof, I.W.M. (author)
The Shuweihat Water Transmission Scheme (SWTS, UAE) consists of a twin DN1600 DI PN25 pipeline transmitting 150 MIGD over 250 km from Shuweihat Desalination plant to Mussafah (Abu Dhabi city). The Scheme is divided in two subsequent systems, each with a tank farm and a pump station delivering water to downstream terminal reservoirs and direct...
conference paper 2012
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Pothof, I.W.M. (author), Karney, B.W. (author)
All water systems leak, and many supply systems do so considerably, with water losses typically of approximately 20% of the water production. The IWA Water Loss Task Force aims for a significant reduction of annual water losses by drafting documents to assist practitioners and others to prevent, monitor and mitigate water losses in water...
conference paper 2012
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Pothof, I.W.M. (author), Blokker, E.J.M. (author)
Sedimentation in drinking water networks can lead to discolouration complaints. A sufficient criterion to prevent sedimentation in the Dutch drinking water networks is a daily maximum velocity of 0.25 m s?1. Flushing experiments have shown that this criterion is a sufficient condition for a clean network, but not a necessary condition. Drinking...
journal article 2012
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Pothof, I.W.M. (author), Tukker, M. (author), Kooij, K. (author), Clemens, F.H.L.R. (author)
conference paper 2011
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Pothof, I.W.M. (author)
Air-water flow is an undesired condition in many systems for the transportation of water or wastewater. Air in storm water tunnels may get trapped and negatively affect the system. Air pockets in hydropower tunnels or sewers may cause blow-back events and inadmissible pressure spikes. Water pipes and wastewater pressure mains in particular are...
doctoral thesis 2011
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Swinkels, C. (author), Van der Zwan, S. (author), Bijlsma, A. (author), Pothof, I.W.M. (author)
In the mixing process of water with different salinities a large amount of energy is released, which is normally converted into heat if fresh water rivers enter estuaries and seas. This energy, often referred to as Blue Energy, may be extracted by two different processes: Reversed Electrodialysis (RED) or Pressure Retarded Osmosis (PRO). The...
conference paper 2010
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Hoorman, R. (author), Kooij, K. (author), Pothof, I.W.M. (author)
Energieverlies leidingen beperkt door terugkoppeling praktijk naar ontwerp en beheer.
journal article 2010
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