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Using Scilab to analyze physical phenomena in a continuous kiln

Laurent Bodini, AREVA

The study concerns signals from a continuous kiln (the product, A, is transported through the kiln between the kiln inlet and outlet). A gas, B, flows in the counter-current direction. In the second part of the kiln (product A outlet side), B is subjected to intense heat resulting in its cracking to form a reactive gas. This cracking is endothermic. In the first part of the kiln, the reagent and product A give rise to an exothermic reaction. Due to these reactions, there is a thermal profile throughout the kiln which provides significant information on the phenomena occurring in the kiln. The thermal profile must be maintained in an optimum domain to allow correct execution of the process. Analysis of the thermal profile provides a large amount of information. 
In particular, the study enables certain operating assumptions to be validated and has a strong impact on the architecture of the planned controllers. This study is based on an interactive graphical interface. This interface enables the temperature profile to be analyzed and spatially interpreted using time signals.

Presentation not available for confidentiality reasons