Numerical Integration in Stiff Solid-Gas Reactor Models -- Applied to Silicon Furnace Models
Prof. Bjarne A. Foss
Zeit: Dienstag, 21. 11. 2000, 16:00
Ort: Hörsaal V 9.31 Pfaffenwaldring 9,
Universitätsbereich Stuttgart-Vaihingen
Abstract:
Many dynamic models encounter numerical integration problems because
of a large span in the dynamic modes. We develop a numerical
integration scheme for systems that include a gas phase, and solid and
liquid phases, such as a gas-solid reactor. The method is based on
neglecting fast dynamic modes and exploiting the structure of the
algebraic equations. The integration method is suitable for a large
class of industrially relevant systems. The methodology has proven
remarkably efficient. It has in practice performed excellent and been
a key factor for the success of the industrial simulator for
electrochemical furnaces for ferro-alloy production.
Biographical Sketch:
Education:
| 1980: |
Diploma engineer (siv.ing.) in Electrical
engineering, The Norwegian Institute of Technology. |
| 1987: |
Dr.ing. in Engineering Cybernetics, The Norwegian
Institute of Technology. |
Main work experience:
| 1982-85: |
Research Scientist at SINTEF Automatic Control
(non-profit research organization) |
| 1985-87: |
Graduate student (doctorate degree), partly on leave
from SINTEF |
| 1988-90: |
Head of System Control Group at SINTEF Automatic
Control |
| 1989-: |
Full professor at The Norwegian Institute of
Technology (later The Norwegian University of Science and
Technology) |
| 1995-96: |
Visiting professor at The University of Texas at
Austin |
| 1999-: |
Department head |
Some other positions and activities:
|
Universität Stuttgart