# REAL-TIME MODELLING OF WOOD DRYING SYSTEMS - Learning from Experiment and Theory

### Stanislaw Tarasiewicz, Belkacem Kada

#### Abstract

Predictive control in a wood drying systems is still at an early stage, because of the difficulties with the estimating a temporal moisture distribution for the whole dried lumber. Therefore, based on the dry and wet-bulb temperatures as the state variables the temporal moisture distribution in kiln-dried lumber is determined from numerical solutions of mathematical model for the wood drying systems. This computer model is represented by a set of several partial nonlinear differential equations coupled with the operating functions and a set of several calculating algorithms. The accuracy of the model solutions in a real-time calculation is evaluated by the on-line identification of the operating functions that represent both the system parameters (heat transfer coefficients, thermal conductivity, heat capacity etc) and selected state variables (air temperature, humidity, velocity etc).

#### References

- Kada, B. and Tarasiewicz, S. 2004. Analysis and identification of distributed parameter model for wood drying systems 7878. Drying Technology, 22(5): 933- 946.
- Tarasiewicz, S. 1984. Identification of an anode - baking process in the ring furnace. Trans. Society for Computer Simulation, 1(2): 117-132.
- Tarasiewicz, S., Ding, F., Kudra, T. Mrozek, Z. 2000. Fast and slow generation of a multilevel control for the wood drying process. Drying Technology, 18(8): 1709-1735.
- Tarasiewicz, S., Bui, R.T. and Charette, A. 1982. A computer model for the cement kiln. IEEE Trans. Industry Applications, IA - 18(4): 424-430.
- Tarasiewicz, S., Gille, J-C., Léger, F. and Vidal, P. 1994. Modelling and simulation of complex mechanical systems with applications to a steam - generating system. Part 1 and 2. Int. J. Systems Sci., 25(12): 2394-2402, Part 1, and 25(12): 2403-2416, Part 2.

#### Paper Citation

#### in Harvard Style

Tarasiewicz S. and Kada B. (2005). **REAL-TIME MODELLING OF WOOD DRYING SYSTEMS - Learning from Experiment and Theory** . In *Proceedings of the Second International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO,* ISBN 972-8865-31-7, pages 132-136. DOI: 10.5220/0001159601320136

#### in Bibtex Style

@conference{icinco05,

author={Stanislaw Tarasiewicz and Belkacem Kada},

title={REAL-TIME MODELLING OF WOOD DRYING SYSTEMS - Learning from Experiment and Theory},

booktitle={Proceedings of the Second International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO,},

year={2005},

pages={132-136},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0001159601320136},

isbn={972-8865-31-7},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the Second International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO,

TI - REAL-TIME MODELLING OF WOOD DRYING SYSTEMS - Learning from Experiment and Theory

SN - 972-8865-31-7

AU - Tarasiewicz S.

AU - Kada B.

PY - 2005

SP - 132

EP - 136

DO - 10.5220/0001159601320136