Dimensionamento de um sistema para geração de energia elétrica utilizando uma roda hidráulica de lado como máquina motriz

Abstract

This work, in addition to presenting a sizing of a hydraulic wheel with a speed multiplier, also brings a further research about this type of machine, since in the national scientific collection the amount of literature about this theme is not great. The purpose of this work is to design a system that can be used to generate electricity, in a sustainable manner, in regions that have low head differences. The breastshot waterwheel was chosen for this purpose. These wheels have low rotation and a generator needs a certain speed, so it was necessary to size a speed multiplier mechanism, with a planetary and two parallels stages, all using helical gears. For a head difference of 1.5 meters, it was possible to size a system capable of generating 5 kW of power using a permanent magnet generator with a nominal rotation of 200 rpm, and the wheel will rotate between, approximately, 7 to 8 rpm, with an estimated efficiency of approximately 70%, for the wheel. A sizing methodology developed in this work for this type of wheel, can be used in a real project. With this type of machine, it is possible to generate electricity in an efficient and sustainable way.