Login

Hydrotheek

Record nummer 2246124
Titel artikel Velocity-based self-cleaning residential drinking water distribution systems
Auteur(s) Vreeburg, J.H.G. ; Blokker, E.J.M. ; Horst, P. ; Dijk, J.C. van
Tijdschrifttitel Water science and technology : water supply / International Water Supply Association
Deel(Jaar)Nummer 9(2009)6
Paginering 635 - 641
Online full text
Op papier Haal het document, vind aanverwante informatie of gebruik andere SFX-diensten
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Resuspension of accumulated particles in residential networks is the main cause for customers to complain to the water company about the water quality. Preventing the particles from accumulating in these networks can be achieved by high velocities in pipes. Adding this velocity criterion to the conventional design criteria leads to a branched lay out of distribution networks, that perform better with respect to water quality, continuity of supply and investment costs. In close cooperation with fire brigades the conventional fire flow requirements were challenged. Based on modern building codes, it proved possible to reduce the capacity of fire-hydrants to 8.3 l/s (30 m3/h) in newly built areas. Six years after the introduction of the velocity criterion the characteristics of the newly laid networks have changed resulting in smaller diameter pipes and reduced length of networks. The amount of 100/110 mm pipes have dropped from 55% of the total length to 45% of total length. The total investment costs for new networks have dropped by 20% in the Netherlands.
Betrokken instanties Technische Universiteit Delft
KWR, Watercycle Research Institute
Reacties
Er zijn nog geen reacties. U kunt de eerste schrijven!
Schrijf een reactie

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.