Robust Output Regulation of Counter-Flow Heat Exchangers

Robust Model Predictive Control of Heat Exchangers

The paper attempts to show that using the robust model-based predictive control (RMPC) strategy for control of thermal processes can lead to energy savings in comparison with classical control approaches. RMPC is applied for control of a tubular heat exchanger that is used for pre-heating petroleum by hot water. The heat exchanger is a nonlinear system with time delay and uncertainty. The contr...

Design of Robust PI Controller for Counter-Current Tubular Heat Exchangers

The paper presents an approach for robust PI controller design for a system affected by parametric uncertainty. The method is based on plotting the stability boundary locus in the plane of controller parameters that is called (kp, ki)-plane. Designed robust PI controller is implemented for control of two counter-current tubular heat exchangers in series with uncertain parameters, in which keros...

Predictive Functional Control of counter current heat exchangers

A full first principle model of counter current heat exchangers is used as the internal model of a classical PFC controller. With the use of a specific physical “convexity property” of this type of process, a full straightforward first-principle model is used as the internal model of the controller. The whole strategy is implemented in a classical industrial PLC, which controls this nonlinear p...

Performance analysis of parallel plate and rectangular micro channel counter flow heat exchangers

In this paper, a comprehensive study on the performance of parallel plate and rectangular micro channel counter flow heat exchangers is presented. The geometrical parameters of the two configurations are optimized for a given heat transfer rate, effectiveness and pressure drop. In case of rectangular micro channel counter flow heat exchanger, a reduced order model is developed first in which re...

Heat Transfer to Separation Flow in Heat Exchangers