Redirigiendo al acceso original de articulo en 22 segundos...
Inicio  /  Water  /  Vol: 9 Par: 11 (2017)  /  Artículo
ARTÍCULO
TITULO

Impact of Hybrid Water Supply on the Centralised Water System

Robert Sitzenfrei    
Jonatan Zischg    
Markus Sitzmann and Peter M. Bach    

Resumen

Traditional (technical) concepts to ensure a reliable water supply, a safe handling of wastewater and flood protection are increasingly criticised as outdated and unsustainable. These so-called centralised urban water systems are further maladapted to upcoming challenges because of their long lifespan in combination with their short-sighted planning and design. A combination of (existing) centralised and decentralised infrastructure is expected to be more reliable and sustainable. However, the impact of increasing implementation of decentralised technologies on the local technical performance in sewer or water supply networks and the interaction with the urban form has rarely been addressed in the literature. In this work, an approach which couples the UrbanBEATS model for the planning of decentralised strategies together with a water supply modelling approach is developed and applied to a demonstration case. With this novel approach, critical but also favourable areas for such implementations can be identified. For example, low density areas, which have high potential for rainwater harvesting, can result in local water quality problems in the supply network when further reducing usually low pipe velocities in these areas. On the contrary, in high demand areas (e.g., high density urban forms) there is less effect of rainwater harvesting due to the limited available space. In these high density areas, water efficiency measures result in the highest savings in water volume, but do not cause significant problems in the technical performance of the potable water supply network. For a more generalised and case-independent conclusion, further analyses are performed for semi-virtual benchmark networks to answer the question of an appropriate representation of the water distribution system in a computational model for such an analysis. Inappropriate hydraulic model assumptions and characteristics were identified for the stated problem, which have more impact on the assessments than the decentralised measures.

 Artículos similares

       
 
Ashraf Abdelkarim and Ahmed F.D. Gaber    
This study aims to assess the impact of flash floods in the Wadi Nu?man basin on urban areas, east of Mecca, which are subjected to frequent floods, during the period from 1988?2019. By producing and analyzing the maps of the regions, an integrated appro... ver más
Revista: Water

 
Nejc Co?, Reza Ahmadian and Roger A. Falconer    
Understanding the impact of various hydraulic structures, such as coastal reservoirs and tidal range impoundments, has been one of the key challenges of hydro?environmental engineering in recent years. Over the last half-century, several proposals for ti... ver más
Revista: Water

 
Peter Schuhmann, Ryan Skeete, Richard Waite, Prosper Bangwayo-Skeete, James Casey, Hazel A. Oxenford and David A. Gill    
Seawater quality is critical for island and coastal communities dependent on coastal tourism. Improper management of coastal development and inland watersheds can decrease seawater quality and adversely impact marine life, human health, and economic grow... ver más
Revista: Water

 
Daniel Althoff, Lineu Neiva Rodrigues and Demetrius David da Silva    
Small reservoirs play a key role in the Brazilian savannah (Cerrado), making irrigation feasible and contributing to the economic development and social well-being of the population. A lack of information on factors, such as evaporative water loss, has a... ver más
Revista: Water

 
Xing Xie, Xinjun Tu, Jinglei Zhu, Vijay P. Singh and Yuanyuan Chai    
Given China?s status as one of the most water-scarce countries globally, its rapid development of urbanization and sustained economic growth have led to increasing pressure on the urban water supply. Water pricing is also receiving increasing attention a... ver más
Revista: Water