Several factors can act as limiting for irrigated agricultural activity, including energy used in the systems. Although the system is hydraulically correct this may not be economically feasible for the farmer. In this study simulations were made for determining the most economical diameter to galvanized steel and PVC pipelines. Models are also obtained to determine the cost of pumping. It was found that for galvanized steel pipes the economic speed ranged between 0.67 and 1.63 ms-1 and for PVC ranged between 0.62 and 1.97 m s-1. With the models generated in this study it can be achieved faster economic parameters that involve pumping systems.
diameter economic; energy pumping; pipes
