Abstract In Goma Township, the water supply system has become ineffective and insufficient against background of an increasing population with high demand. A study was therefore carried out to assess network Township using three performances indicators a view proposing possible solutions existing challenges. The methodology involved assessment evaluation production, physical characteristics, hy...

Chlorine concentrations in water distribution systems are generally predicted by combined models of reactions bulk and at pipe walls. The structure the widely used EPANET wall-reaction is questioned, as they do not reproduce variation rate with decreasing chlorine observed real pipelines. microbially mediated model (EXPBIO) structurally valid. EXPBIO was extended to calculate mass-transfer coef...

The improvement in energy saving aspects water systems is currently a topic of major interest. utilization pumps working as turbines relevant strategy distribution networks consisting pressurized pipes, using these machines to recover energy, generate green and reduce leakages systems. need develop studies, prior the installation facilities, requires use simulation tools. These tools should be ...

Water distribution networks are vital hydraulic infrastructures, essential for providing consumers with sufficient water of appropriate quality. The cost construction, operation, and maintenance such is extremely large. problem optimization a network governed by the type size pipelines placed in network. This optimal diameter allocation pipes has been heavily researched over past few decades. s...

Zhengfu Rao (corresponding author) School of Civil Engineering and Geosciences, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK Tel.: +44 1793 816359 Fax: +44 1793 812 089 E-mail: [email protected] Fernando Alvarruiz Departamento de Sistemas Informáticos y Computación, Universidad Politecnica de Valencia, Valencia 46022, Spain As part of the POWADIMA research project, this paper describ...

Carefully scheduling the operations of pumps can be resulted to significant energy savings. Schedules can be defined either implicit, in terms of other elements of the network such as tank levels, or explicit by specifying the time during which each pump is on/off. In this study, two new explicit representations based on timecontrolled triggers were analyzed, where the maximum number of pump sw...