Management of water networks. Proceedings of the Conference «Efficient Management of Water Networks. Design and Rehabilitation Tech-niques». Ferrara, May 2006

Editore: Franco Angeli
Anno edizione: 2007
Pagine: 200 p.
  • EAN: 9788846485410
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Also in the light of recent legislation on the subject (law 36/1994 for instance), the design of water distribution systems is moving towards new approaches which, beyond the traditional sizing of the principle components, allow for explicit consideration of the degree of effectiveness and efficiency that the system is able to guarantee.An objective measure of effectiveness is reliability, which can be defined as the probability that the system will fulfil - under specific conditions and durations - the functions for which it has been designed. The reliability of a system can be quantified through an evaluation of the nodal and global indices with long-term simulations, in which the time variations of the pipe failure rates, of the uncertain nature of the water demand and of the pipe roughness can easily be included. As regards the second parameter (efficiency), it is evident that we need a thorough knowledge of the leakages estimated as the ratio between the quantity of water delivered and that supplied to the network.The rehabilitation of the water distribution systems and, more generally, their proper and careful management allow the highest global performances to be obtained from these systems, as demonstrated by some case studies collected in these Proceedings, in which equal importance is given to the distribution service and to the reduction of water wastage.

P. Bertola, M. Nicolini, "Evaluating reliability and efficiency of water distribution networks
S. Alvisi, S. Grata, M. Franchini, Leakage detection planning in water distribution systems
A. Carravetta, M. Giugni, Functionality factors in the management and rehabilitation of water networks
S. Liberatore, G.M. Sechi, Scatter search metaheuristic approach for valves location and calibration using the meta-water toolkit
G. de Marinis, R. Gargano, C. Tricarico, D. Savic, Estimation of reliability thresholds for the rehabilitation of hydraulic networks
M. Cannarozzo, M. Gagliardi, M.R. Mazzola, M. Scordo, The first step in the management and replacement strategy of a water distribution network: the analysis of main failures
R. Ermini, P. In geduld, G. Zuccaro, A case study of water distribution network reliability assessment with MIKE NET
G. de Marinis, R. Gargano, C. Tricarico, D. Savic, Models of daily water demand for small towns
E. Orsi, Some topics in water demand reduction and control
S. Meniconi, M. Ferrante, B. Brunone, Assessment of the efficiency of a pressure conduit system by means of transient tests: preliminary results
R. Guercio, R. Magini, V. Primavera, F. Micchetti, A multi-objective approach for optional control-valve location and setting in a water distribution system
A. Boccafoschi, B. Rejtano, Entropy and equivocation concepts in assessment of reliability of water distribution networks