Projeto de um concentrador solar parabólico composto (CPC) para aplicação em dessalinizador solar no agreste de Pernambuco

Abstract

The use of solar collectors or concentrators for water desalination is an old technology that is present in the life of a community that suffers from long periods of drought, and has reservoirs with the concentrated presence of salts, resulting in a brackish water resource. This type of technology offers a low-cost alternative for installation, combined with simple, cheap and low-recurrence maintenance, in addition to having a negligible or non-existent cost with the daily energy supply. The present work aims to design a compound parabolic solar concentrator, to be applied in a desalinator in a city in the interior of Pernambuco, called Caruaru. The work addresses geometric factors, such as concentration ratio, parabola geometry and optical efficiency, bringing a mathematical and graphical approach to the concentrator, as well as surveys about the energy collected by the absorber tube, taking into account the characteristic losses for a CPC of Evacuated Tubes.