Encontro de Energia no Meio Rural

Abstract

KOLLING, Evandro Marcos, SOUZA, Samuel Nelson Melegari de, DALLACORT, Rivanildo et al. Diferentes níveis de irradiação solar e de pressão de trabalho, em um sistema fotovoltáico de bombeamento de água. In Procedings of the 4th Encontro de Energia no Meio Rural, 2002, Campinas (SP) [online]. 2002 [cited 19 April 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022002000100050&lng=en&nrm=iso> .

The pumping of water is one of the activities more diffused to the employment of the solar energy, in spite of coming as an interesting alternative, the high cost and it lowers efficiency of the systems, with to the inadequate projects they still restrict its application. The rational use, based on the most efficient use of its equipments this linked to the knowledge of the operational behavior of these systems. The present work objectified to evaluate the operational behavior of a system fotovoltáico of pumping of water directly coupled operating in different conditions of solar irradiance, by means of the assembly of a supported of tests, submitting it to different work pressures and determining the supplied rate flux the water. The analysis of the results allowed concluding that the power generated by the array and the rate flux supplied by the motor-pump is directly related to the solar irradiance and the head. The maximum efficiency of the array was of 8%, 39% for the motor-pump and, 2,3% in the interaction of the components in the system.

Keywords : Irradiância solar; Carga de bombeamento; Vazão do sistema; Sistema Fotovoltáico.