Detection and qualification of friction in control valves. / Detecção e quantificação de atrito em válvulas de controle.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This work will study methods for detection and quantification of friction in control valves. These valves are the main final elements of control loops in industrial processes. The presence of friction can increase the variability of the control loop, causing loss of product quality, increase need of maintenance and significant economical impacts. Many studies have been presented in order to diagnose and measure the friction. In this work, some techniques proposed in the literature will be implemented. In order to evaluate its performance, it will be presented some comparisons of the results obtained from simulation and laboratory experiments.

ASSUNTO(S)

sistemas de controle control of processes válvulas de controle pneumático friction controle de processos (variabilidade) control systems pneumatic control valves atrito

Documentos Relacionados