Caracterização de uma estacão de bombeamento de água a energia solar

Abstract

A solar water pumping station is a set of elements that, based on the photovoltaic effect, transform solar energy into electrical energy and this, in turn, is transformed into potential gravitational energy for water. This system was conceived for the water supply in remote regions in developing countries, which are difficult to reach by the conventional electricity network due to economic factors. On the other hand, the use of this technology contributes to the preservation of the environment. Because these systems work outdoors and are therefore subject to the environmental conditions of the place where they are installed. In this work, the behavior of the water pumping station under local environmental conditions is analyzed, based on the irradiance parameter. This analysis was carried out on a water pumping system installed on the university campus, within the scope of the activities of the photovoltaic solar energy research project underway in the Physics department of the Eduardo Mondlane University. The system has four main components, namely: photovoltaic generator, inverter, motor / pump unit and water tank. Local environmental conditions were monitored by measuring solar radiation, temperature, wind speed, voltage and electric current. Based on the statistical analysis of experimental data in recent years taking into account that in the eighties it was more or less 2% and the current is more or less 4%.