Steam levelling In the industrial power plant, steam levelling means balancing the steam generation with the consumption. Steam pressures in different levels (headers) should be stable, and the operational efficiency of the plant at the maximum level. The well-performing control system is important, because the disturbances and the start-ups lead to large and fast load
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Steam levelling
After reading this article you will..
- learn the main processes used in the steam levelling of the paper mill.
Content
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
Authors & references
Authors:
Professor Emeritus Kauko Leiviskä, University of Oulu
References:
- Majanne, Y. 2003. Model predictive pressure control in steam networks. IFAC Power Plants and Power Systems Control, Seoul, Korea.
- Haapanen, A., Pörsti, H. and Muukari, P. 1983. Energy management system for an integrated pulp and paper mill. IFAC Instrumentation and Automation in the Paper. Rubber. Plastics and Polvmerisation Industries, Antwerp, Belgium 1983.
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This page has been updated 16.11.2020
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