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DYNA
versão impressa ISSN 0012-7353versão On-line ISSN 2346-2183
Resumo
ESCOBAR JIMENEZ, RICARDO FABRICIO et al. DESIGN AND IMPLEMENTATION OF AN OBSERVER-BASED SOFT SENSOR FOR A HEAT EXCHANGER. Dyna rev.fac.nac.minas [online]. 2011, vol.78, n.166, pp.89-97. ISSN 0012-7353.
The objective of this work is to describe step-by-step how to implement an observer-based soft sensor in order to estimate process variables for which a hardware sensor is not available. The design and implementation procedure is illustrated by applying it to a counter-flow double-pipe heat exchanger. The approach used to design the nonlinear observer is based on a simplified mathematical model of the process. Numerical simulations and experiments were performed in a bench-scale pilot plant in order to validate the proposed scheme.
Palavras-chave : Soft sensor; nonlinear observer; heat exchanger.