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Head loss in laser-perforated thin-walled polyethylene pipes for irrigation AGRIAMBI
Melo,Verônica G. M. L. de; Frizzone,José A.; Camargo,Antonio P. de; Bombardelli,Wagner W. Á..
ABSTRACT For reducing fixed and operational costs in pressurized irrigation systems, thin-walled polyethylene pipes with laser-perforated orifices are manufactured to operate under low pressure (up to 100 kPa). Hydraulic characterization of these materials is essential for designing irrigation systems. Considering the material elasticity and the thin wall thickness (about 200 μm), the internal diameter of these pipes may vary according to the operating pressure, resulting in changes of head losses. The purpose of this study was to analyze the head loss in flexible pipes with laser-perforated orifices, and to estimate the maximum length of laterals based on criteria of water distribution uniformity. Non-perforated pipe samples were tested to obtain...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Operating pressure; Diameter change; Design; Lateral line.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500317
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