Influência do uso de diferentes defletores na distribuição de água de um aspersor de impacto.

Abstract

This work was developed with the objective of evaluating the deflector trajectory outlets influence on reach radius, Christiansen Uniformity Coefficient (CUC) and water distribution curve shape of the RAIN BIRD® impact sprinkler, model LF1200™. It was used three deflector angles ( 6º - purple, 10º - white and 16º - red), and 2,59 mm nozzle diameters, working on 280 kPa operation pressure. Bigger reach radius was achieved when using greatest angles deflector, then, the white Deflector trajectory outlets presents better CUC. “Irregular”, “elliptical or rectangular” and “triangular” formats of water distribution curves were found for the purple, white and red deflector trajectory outlets, in this order.