Process control and automation
- Introduction to process control and automation
- Development of process automation
- Fibre process automation
- Chemical recovery as a control object
- Advances in paper machine automation
- Paper machine as a dynamical system
- Tasks in paper machine control and management
- Control of stock flow concentration and quality
- Machine direction control
- Cross-directional control – The static optimisation
- Cross-directional control – Dynamics
- Cross-directional control – further aspects
- Controlling functional paper properties
- Managing grade chances in the paper machine
- Managing disturbances caused by broke and recovered solids
- Millwide systems
- Modelling and control methods
Cooking plant scheduling Production scheduling in a conventional batch cooking plant tries to ascertain the pulp production at the specified target levels or maximises it within operational limits. Scheduling programs automatically space the digester blows along each production line to make production as continuous as possible. Scheduling determines the most efficient way to meet the
Authors & references
Authors:
Professor Emeritus Kauko Leiviskä, University of Oulu
References:
- Hvala, N., Strmčnik, S. and Černetič, J. 1993. Scheduling of batch digesters according to different control targets and servicing limitations. Computers & Chemical Engineering 17(7):739–750.
- Castro, P., Matos, H. and Barbosa-Póvoa, A.P.F.D. 2002. Dynamic modelling and scheduling of an industrial batch system. Computers and Chemical Engineering 26:671–686.
- Kondili, E., Pantelides, C. C., and Sargent, R. W. H. (1993). A general algorithm for short-term scheduling of batch operations—I. MILP formulation. Computers and Chemical Engineering, 17(2):211–227.
- Castro, P.M., Rodrigues,D. and Matos, H.A. 2014. Cyclic Scheduling of Pulp Digesters with Integrated Heating Tasks. Industrial Engineering Chemistry Research 53:17098−17111.
- Shaik, M. A. and Bhat. S. 2014. Scheduling of displacement batch digesters using discrete time formulation. Chemical Engineering Research and Design 92:318–339.
- Ryynänen, H., Sainiemi, J. 1987. Control system for RDH digester. In: Automation Days 87. Helsinki, May 12–14. The Finnish Society of Automatic Control, part IV. pp. 259–272. (In Finnish).
- Scheldorf, J. J., Edwards, L. L., Lidskog, P., et al. 1991. Using on-line computer simulation for rapid displacement heating control system check-out. TAPPI J. 74(3):109–112.
Videos
Exercises
This page has been updated 14.11.2020