Avaliação dos sensores de pressão e vazão em um sistema de dessalinização piloto via osmose inversa.

Abstract

This work has the objective to develop and to evaluate the pressure and flow meter sensors of the low cost for desalination system by inverse osmosis. Through a pressure hydraulic system were studied the following parameters: temperature control, relation ship of the diameter of the extensometer and his protecting plate, fixation of the extensometer and obtaining of the best function answer. The flow meter sensors were evaluate in a system of pilot desalination as a function of the applied pressures. For both cases, the signs of the sensor of pressure and flow meter they were compared with obtained data of analogical instruments during the process. The average error of the flow meter sensor was of 1,27% in relation to the results obtained with the one of the same of the same type, though commercial. For the pressure sensor the error was 0,30% and 0,51% to the films of 1 mm and 3 mm respectively.