ALTERNATIVA PARA DIMENSIONAMENTO DE REDES RAMIFICADAS DE ABASTECIMENTO DE ÁGUA: AVALIAÇÃO HIDRÁULICA E ORÇAMENTÁRIA

Mariana Luíza da Silva, Michael Silveira Thebaldi, Tiago de Morais Faria Novais
2019 Sustentare  
The drinking water supply is one of the components of the Basic Sanitation. On this, is not important only the quality of the water that is delivered to the population, but also its quantity and hydraulic condition of availability. So, for the hydraulic dimensioning, the NBR 12218 establishes a minimum sizing diameter, however, it is seen that in particular cases, it is not necessary to be used, which would lead to a lower cost of the work. Thus, the objective of this work is to design the
more » ... to design the water supply network of a residential allotment, performing its sizing from the setting of a minimum commercial diameter, as established by NBR 12218/2017, and without this criterion being considered, comparing technically the projects obtained. It was necessary to Sustentare | v. 3 | n. 1 jan/jun 2019 | p. 2 carry out the layout of the supply network of the studied allotment, in addition to dimensioning the networks defined from hydraulic and design criteria, for per capita flow rates of 150 and 350 l/inhabitant day. In order to allow a more robust comparison between the systems, it was also determined the quantity of materials to be used, as well as the cost of hydraulic network implantation for the different scenarios. For both per capita flows studied, there was a reduction in the total cost of the work for the free dimensioning, without the hydraulic quality of the network, being impaired. Thus, for small allotments, diameters less than 50 mm can be used, provided that criteria relevant to hydraulic engineering in the selection of diameters are followed.
doi:10.5892/st.v3i1.5263 fatcat:hdzs232iard2veelm4zcrlh264