Some of the major findings;

The algorithms turned out to give robust estimates of several important variables such as consistency, fiber residence time, bar-to-bar force estimation etc. Moreover, it was shown that the algorithms were possible to implement as a soft sensor package in on-line applications.

During an extensive long term test, performed during two years, it was possible to show that without violating specifications in the pulp properties, the total power supply to one production line can be reduced at least 2 MW from the average of 30 MW. This means a saving potential of about 35 GWh/year for the mill studied (two production lines), probably more as this savings refers to the stabilization of the process. If using the proposed “Process optimization and control concept” to find new operating points the saving potential will be about 350 kWh/ADMT.

Finally it was shown that the variations in pulp and handsheet properties can be reduced by at least 50% by using the control concept LESS – Low Energy Strategic Systems.

For further reading, please download "Some of the major findings".