Original scientific paper

Controllability and Operability Analysis of Heat Exchanger Networks Including Bypasses

S. Hernández ; Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Guanajuato, Gto., 36050, Mexico
L. Balcazar-López ; Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Guanajuato, Gto., 36050, Mexico
J. A. Sánchez-Márquez ; Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Guanajuato, Gto., 36050, Mexico
G. González-García ; Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Guanajuato, Gto., 36050, Mexico

Abstract

In this paper, the influence of bypasses in heat exchanger networks on theoretical control properties and closed-loop behavior was investigated. According to theoretical control properties obtained using the singular value decomposition technique, the presence
of bypasses increases flexibility of the heat exchanger network. This result was corroborated using closed-loop dynamic simulations using a proportional integral controller and a proportional integral controller with dynamic estimation of uncertainties. The heat
exchanger network including bypasses outperformed the dynamic behavior of the heat exchanger network without bypasses. Moreover, closed-loop dynamic responses were improved significantly using controllers with dynamic estimation of uncertainties.

Keywords

Heat exchanger network; control properties; bypasses

Hrčak ID:

49478

URI

https://hrcak.srce.hr/49478

Publication date:

25.3.2010.

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