Other sectors
PROCESS CONTROL REFERENCES IN OTHER SECTORS
| PROCESSES |
Control
implementations
|
 |
| Furnace (glass) | 2 | |
| Feeder (glass) | 1 | |
| Photo-bio-reacteur (space) | 2 | |
| Higher Plants Compartment (space) | 1 |
| Download : |
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Typical Example : Glass furnace : feeder
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A feeder is the channel through which the molten glass is distributed to the object-forming stations.
The feeder is split down into 3 zones and each zone outlet temperature is to be controlled carefully in order to satisfy a given profile along the channel. The predictive control technology was selected as it is based on a model of the process which represents correctly the quite different dynamics between the actuators (heating and cooling) and the process outputs (temperatures). With the PCR library (Predictive Control), the gas consumption is reduced thanks to a better management of the heating and cooling actuators. During production switches (change of the specified temperature profile) and when changing the feed rate, the time required for reaching a new stabilised operating point is also reduced. The better temperature performances lead to a more stable quality of the products. |
