Proactive Optimization and Control of Heat-Exchanger Super Networks

On-line optimization and choice of optimization variables for control of heat exchanger networks

The paper discusses optimal operation of a general heat exchanger network with given structure, heat exchanger areas and stream data including predefined disturbances. A method that combines the use of steady state optimization and decentralized feedback control is proposed. A general steady state model is developed, which is easily adapted to any heat exchanger network. Using this model period...

Modelling, Optimization, and control of a plate heat exchanger

Optimization of Heat Exchanger Networks by Means of Evolution Strategies

This paper describes the adaptation of Evolution Strategies (ESs) for simulation based heat exchanger network synthesis. Due to space limitations the presentation is restricted to a brief overview of the application domain, the problems and pitfalls we encountered during the project and hints to solutions. Some of these problems are of general relevance for the application of Evolutionary Algor...

Strategies for the Operation and Control of Heat Exchanger Networks

The continued high cost of energy has mandated that the Chemical Process Industries reduce operational and capital costs through process heat integration. However, the heat integration of process streams can lead to process structures that are difficult to operate and control. This paper addresses the control of heat exchanger networks and it shows the importance of dynamic simulations in the s...

A global optimization algorithm for heat exchanger networks

This paper deals with the global optimization of heat exchanger networks with fixed topology. It is shown that if linear area cost functions are assumed, as well as arithmetic mean driving force temperature differences in networks with isothermal mixing, the corresponding NLP optimization problem involves linear constraints and linear rational functions in the objective which are nonconvex. A r...