Evaluation of Uniformity Coefficient and Water Distribution Efficiency of Some Impact Sprinklers in Shambat, Sudan

Abstract

This study was carried out during May and June 2010 in the
Demonstration Farm of the Faculty of Agriculture, University of
Khartoum at Shambat, to evaluate water distribution under different types
of sprinkler heads. The study consisted of evaluating Christiansen's
coefficient of uniformity (CU %) and uniformity of distribution (DU %)
under twin nozzle brass impact sprinkler (JIS2), twin nozzle plastic
sprinkler (DAN4455) and single nozzle plastic sprinkler (LEGO55). The
twin nozzle brass sprinkler gave significantly better values for all
sprinkler configurations, while the difference between twin and single
nozzle plastic sprinklers was mostly insignificant. At low wind speeds
(<2.0 m/s) and narrow configurations, the single nozzle plastic sprinkler
gave better values of CU% and DU%