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Dynamic optimization of a slab reheating furnace with consistent approximation of control variables " , TITLE = {Dynamic optimization of a slab reheating furnace with consistent approximation of control variables}, Copyright notice: c 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any(More)
A fast simulation method for 1D heat conduction " , Mathematics and Copyright notice: This is the authors' version of a work that was accepted for publication in Mathematics and Computers in Simulation. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may(More)
The annealing process plays an important role for the product quality of steel strips. To achieve a high product quality, an accurate temperature control is essential, which typically requires information about the temperature evolution inside the strip annealing furnace. However, usually only a few temperatures at discrete points in the furnace can be(More)
Gas-fired industrial furnaces are used to heat products to a predefined temperature level. As the temperature of the load as well as the composition of the flue gas are crucial for many applications in industry, the controllers of burners have to ensure a given heat input and air-fuel ratio. As a basis for such controllers, an accurate mathematical model of(More)
Englisch: A nonlinear model predictive controller is developed as part of a cascade temperature control system for a continuous furnace that reheats steel slabs. Using a continuous-time state-space model based on first principles, a constrained dynamic optimization problem is formulated. It is converted into an unconstrained optimization problem by means of(More)
In gas-fired industrial furnaces, gas burners are typically used for heating of a load. The heating process inside the furnace has a strong influence on the product quality of the load. For accurate control of the load temperature, highperformance subordinate control of the mass flow of natural gas and air to the burners is crucial. For this purpose, a(More)
The most common and well proven control strategy for thickness control in industrial rolling mills is the automatic gauge controller (AGC). However, it is still unclear how to use AGC for the control of asymmetries in lateral direction. How should the controller react to different thickness estimations at both sides of the mill? Such laterally asymmetric(More)
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