Artículo de revista
Design and implementation of an observer-based soft sensor for a heat exchanger
Fecha
2011Autor
Escobar Jiménez, Ricardo Fabricio
Astorga Zaragoza, Carlos Manuel
Hernández, José A.
Medina, Manuel Adam
Guerrero Ramírez, Gerardo Vicente
Institución
Resumen
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.