Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
APPLICATION OF AN AUTOMOTIVE LAMBDA SENSOR FOR NOx DETECTION IN LPG COMBUSTION
Submission Author:
Caike Damiao Nascimento Silva , CE
Co-Authors:
Caike Damiao Nascimento Silva, lutero c. de lima, Mona lisa Oliveira, Daniel Serra, Thiago Sousa
Presenter: Caike Damiao Nascimento Silva
doi://10.26678/ABCM.COBEM2019.COB2019-0055
Abstract
The low-cost technologies demand for developing countries is progressive, especially for small producers lacking practical solutions to address the problems inherent in industrial processes, such as combustion efficiency and pollutants emissions. From this perspective, one of the purposes of this work is to provide access to combustion monitoring technology, considering economic factor and easy applicability in the field. The study has as innovation potential the NOx detection in the combustion of Liquefied Petroleum Gas (LPG) using an automotive oxygen sensor, the lambda sensor, a cheap and affordable device in the market. A measurement technique based on sensor temperature control and application of electrical voltage pulses at the sensor terminals is used, making possible the NOx detection in the exhaust gases by sensor discharge curves. In the results obtained in this study it is possible to identify that the discharge curves are distinct for each NOx concentration emitted in the LPG combustion, but the detection is limited to low NOx concentrations.
Keywords
Lambda sensor, measurement, Combustion, LPG, NOx emissions
