https://store-images.s-microsoft.com/image/apps.32676.d395726d-c4ac-46dc-8354-7b7643f54c48.30c1c60e-c209-456a-a131-b7c5c5391c63.852d154d-ff39-4073-bc71-f8efed428360

Control Performance Assessment for Pulp & Paper

by ANDRITZ AG

Optimize control loops for pulp and paper processes with actionable insights and recommendations.

Discovers unknown and hidden process upsets, prioritize saving opportunities and support users to achieve more practical and cheapest decision-taking. Metris CPA continuously monitors regulatory process and intelligently recommends optimization actions based on years of embedded expertise. Driving loops to optimal achievable performance by few steps. PID Tuner provides fast and cost-effective solutions for optimizing mill control loops.


Why invest in loops optimization

  • 30% of loops are usually in manual
  • 30% of problems in sensors, actuators
  • About 25% of Control Loops are initially configured by using default PID Parameters and remains the same for years
  • About 20% of Controllers operate under saturated conditions
  • Opportunities in tuning and final control element are hidden in at least 30% of Control Loops (15% no sense)
  • 20% wrong and/or improper design
  • Only 20% of loops operate better in automatic than in manual mode!


Other important points to consider:

  • Usually the loops are not optimized in the start-up process
  • During its life the valves are worn out (actuators) and increase variability of PV (process variable)
  • Tuning should track changes in process
  • Tuning should track changes of raw materials
  • In general, a loop is only reviewed when one of its pieces of equipment enters into failure: controller, sensor or actuator.
  • In reality, the performance of a controller loop may decline over time due to wear of actuators, alterations in process, changes of recipe/set-points, alterations of reagents (concentration, etc.).
Due to the above, loops can present high variability, causing impact to process and assets.

Benefiting from hidden controls opportunities by using CPA App

  • Monitor control performance over time 24x7

  • Support in finding hidden process upset

  • Easy interpretation between good and bad performance through KPIs

  • Analysis of Control Loops Events

  • Recommendation of Best Actions to Improve Loop Performance

  • Support in Identifying Instrumentation Issues




At a glance

https://store-images.s-microsoft.com/image/apps.56173.d395726d-c4ac-46dc-8354-7b7643f54c48.30c1c60e-c209-456a-a131-b7c5c5391c63.341e5127-01bf-4baf-b9c3-ff78db5c4650
https://store-images.s-microsoft.com/image/apps.28832.d395726d-c4ac-46dc-8354-7b7643f54c48.30c1c60e-c209-456a-a131-b7c5c5391c63.d382339a-4429-4027-885e-2998503411ba
https://store-images.s-microsoft.com/image/apps.14719.d395726d-c4ac-46dc-8354-7b7643f54c48.30c1c60e-c209-456a-a131-b7c5c5391c63.52c76579-bc48-4dca-927c-961fb4a87f44
https://store-images.s-microsoft.com/image/apps.51958.d395726d-c4ac-46dc-8354-7b7643f54c48.30c1c60e-c209-456a-a131-b7c5c5391c63.0c321496-96d5-4a37-b319-883eac459a4f