Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Interesting Approaches in Model Construction for Controlling a Glass Melt

03.07.2003


In this year’s competition of the international scientific association, EUNITE, three teams have succeeded in predicting the temporal development of the five response signals in the process control of a glass melting tank (with 29 input parameters) over a period of two weeks. The – weighted – deviation of the modelled values from the real values was 0.3 per cent. The winners will present their results at the EUNITE Conference from 10th to 12th July in Oulu, Finland. As an expression of its gratitude, Schott Glas will award prizes in the amounts of 5000 € (1st place), 3000 € (2nd place), and 1000 € (3rd place). “We could not actually apply the concrete values from the prediction for plant control, perhaps because some decisive parameters had not yet been recorded, but the proposed model approaches are of great value to us”, said Dr. Katharina Lankers, who had arranged the competition on behalf of Schott Glas.



EUNITE is a European association of scientists at universities and in industry; it is supported by the European Union with the objective of forming a network for excellence. EUNITE is dedicated to improvements in so-called intelligent, adaptable systems. The modelling abilities of the scientists are tested in an annual competition. The competition is coordinated by Lecturer Dr. Jens Strackeljan at the Institute of Technical Mechanics at the Technical University of Clausthal.

The winners are Marcin Wojnarski at the University of Warsaw, Poland, first place; Dr. Bernhard Pfahringer at Waikato University in New Zeeland, second place; Dr. Dumitru-Iulian Nastac and Adrain Costea at the Computer Science Centre in Turku, Finland, third place. A total of twenty proposed solutions were received, some of them from the United States and Brazil, among other countries.


What was the problem posed for this competition? The data, 29 real input values as well as five real output values, each recorded at 15-minute intervals, were provided by Schott Glas, Mainz. These data were rescaled operational data for the control and indirect quality measurement of a glass melt over a period of fourteen weeks. The real physical meaning of these data was not revealed to the participants in the competition, since this, of course, is a company secret.

The measured values were supplied to the scientists in raw form; that is, they had not been pretreated or freed from interference, and noise was not suppressed. Thus, preparation of the data for modelling constituted a part of the given problem. A further difficulty was the frequent delay of hours or even days between the variation of an input signal and the “response” from the glass melting tank.

During the last two weeks, only the real input values to the system, that is, only the control targets of the process engineers and the sometimes unexpected, but measurable external effects, were known to the scientists. The manner in which the melt reacts to these inputs was not indicated to the scientists.

The problem for the scientists was to predict the behaviour of the glass melt. Their predictions and the derived mathematical correlations between the input and output values were subjected to an empirical test by comparison with the real values. The time-weighted deviation of the process behaviour predicted by the winners from the real values amounted to 0.3 per cent. They will present their results at the EUNITE Conference from 10th to 12th July in Oulu, Finland. As an expression of its gratitude, Schott Glas will award prizes in the amounts of 5000 € (1st place), 3000 € (2nd place), and 1000 € (3rd place).

PD Dr. Jens Strackelan | alfa
Further information:
http://www.eunite.org/eunite/index.htm

More articles from Process Engineering:

nachricht Applying electron beams to 3-D objects
23.09.2016 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

nachricht New process for cell transfection in high-throughput screening
21.03.2016 | Laser Zentrum Hannover e.V.

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First quantum photonic circuit with electrically driven light source

Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.

Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...

Im Focus: OLED microdisplays in data glasses for improved human-machine interaction

The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.

“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...

Im Focus: Artificial Intelligence Helps in the Discovery of New Materials

With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.

Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...

Im Focus: Complex hardmetal tools out of the 3D printer

For the first time, Fraunhofer IKTS shows additively manufactured hardmetal tools at WorldPM 2016 in Hamburg. Mechanical, chemical as well as a high heat resistance and extreme hardness are required from tools that are used in mechanical and automotive engineering or in plastics and building materials industry. Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Dresden managed the production of complex hardmetal tools via 3D printing in a quality that are in no way inferior to conventionally produced high-performance tools.

Fraunhofer IKTS counts decades of proven expertise in the development of hardmetals. To date, reliable cutting, drilling, pressing and stamping tools made of...

Im Focus: Launch of New Industry Working Group for Process Control in Laser Material Processing

At AKL’16, the International Laser Technology Congress held in May this year, interest in the topic of process control was greater than expected. Appropriately, the event was also used to launch the Industry Working Group for Process Control in Laser Material Processing. The group provides a forum for representatives from industry and research to initiate pre-competitive projects and discuss issues such as standards, potential cost savings and feasibility.

In the age of industry 4.0, laser technology is firmly established within manufacturing. A wide variety of laser techniques – from USP ablation and additive...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Laser use for neurosurgery and biofabrication - LaserForum 2016 focuses on medical technology

27.09.2016 | Event News

Experts from industry and academia discuss the future mobile telecommunications standard 5G

23.09.2016 | Event News

ICPE in Graz for the seventh time

20.09.2016 | Event News

 
Latest News

New switch decides between genome repair and death of cells

27.09.2016 | Life Sciences

Nanotechnology for energy materials: Electrodes like leaf veins

27.09.2016 | Physics and Astronomy

‘Missing link’ found in the development of bioelectronic medicines

27.09.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>