SciELO - Scientific Electronic Library Online

 
vol.38 número4 índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Water SA

versão On-line ISSN 1816-7950

Resumo

BEZERRA, Saulo de Tarso Marques; DA SILVA, Simplício Arnaud  e  GOMES, Heber Pimentel. Operational optimisation of water supply networks using a fuzzy system. Water SA [online]. 2012, vol.38, n.4, pp. 565-572. ISSN 1816-7950.

This paper presents a fuzzy system to control the pressure in a water distribution network, by using valves and controlling the rotor speed of the pumping systems. The variable frequency drive tracks the minimum head of the pumping system, while the control valves have the function of eliminating the excess pressure at various points of the network. The control system can track any reference pressure value and there is no limit for the number of monitored points. Experiments were carried out to demonstrate the fuzzy system's efficiency. By extrapolating the results achieved in the experimental setup to a real hydraulic network with leakages and no pressure control, the volumetric losses could be reduced by more than 56%. The experiments showed that the system is robust enough to control the pressure of an experimental setup of water distribution. Besides, the proposed system can be easily applied to similar water supply systems and would help to reduce the consumption of water and electricity, as well as to reduce the maintenance costs.

Palavras-chave : water; power efficiency; water supply system; fuzzy logic.

        · texto em Inglês     · pdf em Inglês