Elaboração de um sistema de monitoramento composto por sensores e componentes eletrônicos por meio da plataforma Arduino para acompanhamento de características especificas do biogás

Abstract

The objective of this work was to verify the efficiency of an electronic device composed of a series of sensors capable of measuring the composition present in biogas. At first, it was necessary to build a biodigester with a capacity of 200 liters in order to house inside the biodigester organic matter from cattle manure collected on a private property. The sensors have resistive characteristics, that is, as the resistance of the material prevents the passage of electric current, the sensor is able to measure the variation in gas concentration. precision. After generating the biogas in the biodigester, the sensor was used with the aid of the gas chamber, after this procedure a second experiment was carried out with Alfakit from EMBRAPA in order to compare the concentrations of methane gas (CH4) and carbon dioxide (CO2) such gases represent most of the biogas composition, with methane being the most important. After performing the comparison, it was possible to verify that the sensor is promising in view of the results presented by Alfakit, with minimal variation in the results when comparing the two methods.