Diseño y fabricación de un emisor de goteo para riego tecnificado parcelario de cultivo de mora en el cantón Pelileo

Abstract

The purpose of this technical project is to manufacture and design an agricultural irrigation sender to improve the irrigation systems currently available for sale in the local market, studying their advantages and disadvantages in order to improve their operating conditions. The new drip emitter design aims to perform computational fluid dynamics (CFD) analysis by finite volume method (MVF) to improve the design of the path through which the fluid flows directly affecting the general operation of the emitter Of dripping. The manufacture of the drip emitter is by means of 3D printing that at present is a method of rapid prototyping that allows the construction of new models. The CFD simulation was performed from 3 different geometries which were analyzed in detail to select the geometry that best present operating conditions, so it was chosen the geometry that has a more stable velocity along the flow path and the smaller quantity Of regions of low speed. For its manufacture must take into account the precision provided by the 3D printer therefore the geometry should not have details smaller than 1mm. The results obtained by the numerical simulation to be compared with the measured results have a 14.5% error of the discharge flow at different pressures, reason why it can be considered acceptable when taking into account that the process of manufacture of the prototype has many Limitations.