Searched for: author%3A%22Blokker%2C+E.J.M.%22
(1 - 15 of 15)
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Mazzoni, Filippo (author), Alvisi, Stefano (author), Franchini, Marco (author), Blokker, E.J.M. (author)
In the water industry, an accurate estimation of end-use water consumption is helpful for the implementation of efficient water systems and water-saving technologies. This study aimed to explore the characteristics of water consumption at nine households north of Amsterdam (the Netherlands), subjected to water consumption monitoring at high...
journal article 2023
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Mazzoni, Filippo (author), Alvisi, Stefano (author), Blokker, E.J.M. (author), Buchberger, Steven G. (author), Castelletti, Andrea (author), Cominola, Andrea (author), Gross, Marie Philine (author), Mayer, Peter (author), Steffelbauer, David B. (author)
A detailed characterization of residential water consumption is essential for ensuring urban water systems' capability to cope with changing water resources availability and water demands induced by growing population, urbanization, and climate change. Several studies have been conducted in the last decades to investigate the characteristics...
journal article 2023
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Boxall, Joby (author), Blokker, E.J.M. (author), Schaap, Peter (author), Speight, Vanessa (author), Husband, Stewart (author)
Discoloured drinking water, caused by elevated concentrations of organic and inorganic particles, is unacceptable. It occurs due to accumulation and subsequent mobilisation of material from within drinking water distribution infrastructure. Discolouration is currently partially explained by either the theories of cohesive layers or...
journal article 2023
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Moerman, Andreas (author), van Bel, Nikki (author), Oesterholt, Frank (author), de Laat, Vincent (author), Blokker, E.J.M. (author)
Climate change demands for sustainable options for heating and cooling of buildings. Low-temperature thermal energy can be abstracted from the drinking water distribution system (DWDS); this is called thermal energy from drinking water (TED). The possible use of TED as a secondary function of the DWDS raises the question whether this...
book chapter 2022
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Hillebrand, Bram (author), Blokker, E.J.M. (author)
In this research, we investigated the influence of the heating of drinking water in the connection pipe under the influence of nearby district heating and the effect this has on water temperatures throughout the domestic drinking water system (DDWS) of a typical Dutch domestic property. We found that stagnant water in the connection pipe...
conference paper 2021
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Steffelbauer, D.B. (author), Blokker, E.J.M. (author), Buchberger, S. G. (author), Knobbe, Arno (author), Abraham, E. (author)
Socioeconomic characteristics are influencing the temporal and spatial variability of water demand, which are the biggest source of uncertainties within water distribution system modeling. Improving current knowledge of these influences can be utilized to decrease demand uncertainties. This paper aims to link smart water meter data to...
journal article 2021
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Koop, Steven Hendrik Andreas (author), Clevers, Sharon Helena Pascale (author), Blokker, E.J.M. (author), Brouwer, Stijn (author)
In response to droughts, various media campaigns and water-saving instructions are released. However, these often only have temporary water conservation effects. A promising development in this regard is Digital Water Meters (DWM), which can provide near real-time water-use feedback. Despite extensive DWM experience in some water-stressed...
journal article 2021
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Agudelo-Vera, Claudia (author), Avvedimento, Stefania (author), Boxall, Joby (author), Creaco, Enrico (author), de Kater, Henk (author), Nardo, Armando Di (author), Djukic, Aleksandar (author), Kapelan, Z. (author), Blokker, E.J.M. (author)
Water temperature is often monitored at water sources and treatment works; however, there is limited monitoring of the water temperature in the drinking water distribution system (DWDS), despite a known impact on physical, chemical and microbial reactions which impact water quality. A key parameter influencing drinking water temperature is...
review 2020
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Medema, G. (author), Smeets, P.W.M.H. (author), Van Blokker, E.J.M. (author), Lieverloo, J.H.M. (author)
Maintaining the microbial quality in distribution systems and connected installations remains a challenge for the water supply companies all over the world, despite many years of research. This book identifies the main concerns and knowledge gaps related to regrowth and stimulate cooperation in future research. Microbial Growth in Drinking Water...
book chapter 2013
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Pieterse-Quirijns, I. (author), Blokker, E.J.M. (author), van der Blom, E.C. (author), Vreeburg, J.H.G. (author)
Existing Dutch guidelines for the design of the drinking water and hot water system of nonresidential buildings are based on outdated assumptions on peak water demand or on unfounded assumptions on hot water demand. They generally overestimate peak demand values required for the design of an efficient and reliable water system. Recently, a...
journal article 2013
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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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Blokker, E.J.M. (author)
In the water distribution network water quality process take place influenced by de flow velocity and residence time of the water in the network. In order to understand how the water quality changes in the water distribution network, a good understanding of hydraulics is required. Specifically in the periphery of the network, where customers are...
doctoral thesis 2010
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Beverloo, H. (author), Klein Arfman, M. (author), Van Dijk, J.C. (author)
An “all pipes” hydraulic model of a drinking water distribution system was constructed with two types of demand allocations. One is constructed with the conventional top-down approach, i.e. a demand multiplier pattern from the booster station is allocated to all demand nodes with a correction factor to account for the average water demand on...
journal article 2010
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Beverloo, H. (author), Klein Arfman, M. (author), Van Dijk, J.C. (author)
An “all pipes” hydraulic model of a DMA-sized drinking water distribution system was onstructed with two types of demand allocations. One is constructed with the conventional op-down approach, i.e. a demand multiplier pattern from the booster station is llocated to all demand nodes with a correction factor to account for the average water emand...
journal article 2010
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Buchberger, S.G. (author), Van Dijk, J.C. (author)
Today, there is a growing interest in network water quality modelling. The water quality issues of interest relate to both dissolved and particulate substances. For dissolved substances the main interest is in residual chlorine and (microbiological) contaminant propagation; for particulate substances it is in sediment leading to discolouration....
journal article 2008
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