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This paper describes the use of single-chip microprocessors for multivariable estimation (filtering) and control applications. The application covers an industrial heat exchanger in which the states are estimated and multivariable controls are implemented. The heat exchanger is modeled and simulated as a second order system. Input variables are the flows of hot and cold side. Output variables are...
A characterization of nearest points in a "slice" of a closed convex set permits the reduction of a problem giving an approximation to an optimal boundary control to a semi-infinite programming problem in Rn+1.
This paper treats calculation of the steady-state relative gains for controlling a single distillation tower. A detailed mathematical model is formulated and solved by a modified Wang and Henke method. Three columns of 90%-10%, 95%-5%, and 99%-1% end product compositions for a benzene-toluene system are considered. The computational results show that the size of the perturbation used to calculate...
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