SCHONS, Ricardo Luis.; KOING, Osvaldo.
Résumé:
The irrigation systems are projected to have a long useful life, thus being, do not have
to be disrespected the operational costs with the energy and the consuming of accessories that it
composes the same ones, that directly they are related to its hydraulical sizing, the watershed of the
cultures and to its water management. This work evaluated some of the parameters that can modify
the performance of systems of irrigation for central pivot. For way of this evaluation it was looked to
bring to the user of the equipment of irrigation information on the modifications in the performance of
the equipment, throughout its useful life, related to the three studied parameters: a) the time of
functioning of the equipment, b) speed of the water in the aerial tubing of equipment and c)
application or not of chemical products with the irrigation water. One concluded that: a) the
evaluation of the operational performance of irrigation systems type "center pivot" must be effected to
the long one of the useful life of the equipment, aiming at to guide adjustments and periodic
corrections in the operational conditions that allow to optimize the allocation of the water and the
energy. b) Is recommendable to analyze the performance of the equipment, adopting the three
parameters used in this work: the Christiansen Uniformity Coefficient (CUC), the Distribution
Uniformity Coefficient (CUD) and the Efficiency of Application (EA).
