> elcome to Glass Service newsletter dedicated to th10 modeling seminar

> S Modeling Awardth> he 10 International Seminar on furnace design –

operation & process simulation

> LASS SERVICE and NOGRID form a new partnership in

developing new dedicated Glass Forming Simulation

solutions

> lass Service and The Float Glass Consortium (FGC)

announce new joint project to develop a unique intelligent

system to manage the float bath operation and

environment „FLOAT BATH EXPERT“

> LAMMATEC – New Combustion Technology for Glass

Furnaces

W

G

T

G

G

F

By Josef Chmelar

President of Glass Service Group

Dear customers, partners and friends,

Welcome to our special Glass Service (GS) newsletter. It is dedicated to the 10th mathematical seminar on glass

melting and forming. This modeling seminar is recognized as the most specialized international forum regarding

modeling of glass furnaces and forming of glass. We are pleased that this event is already approaching its 18 years

anniversary. At the same time, GS is soon to celebrate 20 years of our services to the glass industry. We would like

to share with you some of our recent developments, achievements and thoughts about the future.

There are many challenges caused by the current economic situation; however, GS is prepared to face these

difficulties through innovation of our services and products.

Our focus is primarily on glass quality, energy efficiency, ecology and productivity.

In order to be able to support these areas, GS has been continuously developing new software solutions, forming

new partnerships and designing new hardware solutions. We hope that this way we can support our customers

during difficult times.

We are looking forward to a very interesting discussion during our modeling seminar. We hope all participants will

enjoy the open atmosphere of this event as well as the social program.

Josef Chmelar

Welcome to Glass Service newsletter dedicated to th

10 modeling seminar

In this number:

1

No. 3 / June 2009glass

New design of GS booth - Glasstec 2008

2

By Erik Muijsenberg

In 2005, Glass Service began a new tradition: the presentation

of the GS MODELING AWARD to outstanding individuals who

have made a noteworthy contribution to the glass industry in

the field of mathematical modeling. As a symbol of this Award

the recipient shall be represented with a Czech glass brilliant.

The Committee has decided unanimously to select Mr. Fabrice Fasilow as the recipient of the GS Modeling

Award for 2009.

GS Modeling Award

By Jana Schachlova and Jana Chovancova

The first seminar, 18 years ago, was an international meeting place for all people involved in the optimization of

the glass melting process, combined with numerical methods. It was shown that the seminar presents a very

practical approach, demonstrating how advanced tools can give operators a better understanding of their

equipment and optimize production.

stThe 1 international seminar was attended by approximately 30 people from the Czech Republic and The

Netherlands. Over the years, Seminar has become an international event, hosting participants from countries

worldwide and having attendance above 100 people.

thThe seminar has focused always on the optimization of melting and conditioning. Since the 9 seminar, there is a thworkshop on modeling of the forming processes. The 10 seminar is again well attended with valuable lectures

and contributors:

Float Tin Bath Model - P. Schill (Glass Service, Inc.)

FMP – A New Simulation Method For Glass Forming Processes - A. Möller, J. Kuhnert, M. Stein (Nogrid GmbH – GS Partner)

Preliminary Experience Of Using Nogrid Software For Glass Forming Processes - M. Moravský (GS ACT)

Advanced Simulation of 3D Glass Bottle Forming With GS Galileo+

- E. Muijsenberg (Glass Service, B.V.), V. Bouwman (Dassault Systemes Simulia B.V. – GS Partner)

The General Conditions Of Glass Melting – The Sand Dissolution And Bubble Removal

- L. Němec, M. Arkosiová, P. Cincibusová, M. Jebavá, J. Kloužek, V. Tonarová (Laboratory of Inorganic Materials)

ICG TC21 Modeling Of Glass Melting Processes - The History & Future Of Comparative Mathematical Modeling Studies of

Glass Furnaces To Improve Their Reliability - E. Muijsenberg (Glass Service, B.V.)

An Evaluation Method Of Thermal Convection Of Molten Glass Flow In A Glass Tank Furnace

- K. Oda (AGC Flat Glass Japan), M. Kaminoyama (Yokohama National University)

T thhe 10 International Seminar on furnace design – operation & process simulation

glass

3

By Erik Muijsenberg

Glass Service and NOGRID have formed a new alliance with the

aim to further improve services to our glass customers.

GS and NOGRID started a co-operation in applying NOGRID new Finite Pointset Method (FPM) to develop it further

for the most specific complicated glass forming applications.

NOGRID, based in Mainz Germany started just 3 years ago and has already achieved a wide customer base. The

FPM particle method solution does not require any meshing and remeshing technique and, therefore, allows us to

simulate glass deformation processes that have not been possible (within a reasonable time) with typical finite

element solutions. Especially for free surface flow, the FPM offers unique solutions. The FPM software had been

developed by the Frauenhofer Institute, in Kaiserslautern Germany, over the past 10 years, before NOGRID has

taken over the market approach. Today NOGRID is not only active on the glass market but, also, on other markets

such as the automotive market. The automotive industry always has given strong demands for state of the art

simulation tools.

GLASS SERVICE and NOGRID form a new partnership in developing new dedicated Glass Forming Simulation

solutions

Modeling Of Redox Reaction In Glass Melt And Its Effect On Glass Flow

- K. Oda (AGC Flat Glass Japan), M. Kaminoyama (Yokohama National University)

Modeling Of A Regenerative TV-Panel Furnace - A. Lankhorst, A. Habraken, S. van Deelen, M. Rongen (TNO Glass Group)

Mathematical Modeling Of Sulphate Fining In A Glass Melting Furnace

- K. Oda (AGC Flat Glass Japan), M. Kaminoyama (Yokohama National University)

Applying CFD To Operations - A. Huber, YiFang Cai (Johns Manville)

Numerical Simulation Of Bubble Number Density In Glass Tank Furnace

- K. Oda (AGC Flat Glass Japan), M. Kaminoyama (Yokohama National University)

Why Simple, If Complexity Is Possible Too? Numerical Comparison Of Different Tank Concepts For Similar Glasses

- W. Muschick

Twelve More Things To Do To Get Furnace Models Closer To Reality - M. Trochta, J. Brada (Glass Service, Inc.)

Regenerators Simulations In AGC: Which Tool For Which Purpose…? But In All Cases, Importance Of Models Validation

- F. Fasilow (ACG Glass Company)

Simulation Of Electrical Boosting With Several Transformers - P. Simons, A. Habraken (TNO Glass Group)

Chemistry Turbulence Interaction Modeling Of Oxy-Fuel Flames

- C. Heymann, M. Mancini (TU Clausthal), A. Richardson (Linde AG)

Simulation And Evaluation Of NOx In Glass Furnaces - Z. Eltutar, S. Özel, L. Önsel (Sisecam, Glass Research Center)

Modeling Study On The Effects Of A Fining Shelf On Glass Quality And Energy Efficiency For Small Glass Furnaces

- G. Huuskes (Libbey Glass), L. Thielen (TNO Glass Group)

Modeling Stirring in Forehearths Using GS GFM - J. Brada (Glass Service, Inc.)

On-Line Rigorous Model-Based Predictive Control (RMPC) Systems Based on GTM-X Simulation Software

- J. Reijers, A. Lankhorst (TNO Glass Group), L. Huisman (Ipcos)

Reducing Variations in Dynamic Forehearth Operation With Use Of Expert System III Model Based Control

- E. Muijsenberg, M. Eisenga (Glass Service, B.V.), J. Chmelař, R. Bódi (Glass Service, Inc.)

Energy Saving Control Of A Glass Furnace

- M. Eisenga, E. Muijsenberg (Glass Service, B.V.), J. Buchmayer (Gerresheimer Lohr GmbH)

Design Of Heat-Up Procedures For Furnaces Using Numerical Simulations

- C. Peret, R. Passos (Thermojet do Brasil Ltda.), P. Budík (Glass Service, Inc.)

glass

4

Glass Service, based in Vsetin Czech Republic, has extensive knowledge of furnace modeling using GS GFM,

furnace operation, advanced control (ES III™), glass quality troubleshooting and glass production optimization,

including already several glass forming processes. However, for some very complicated forming processes, such

as gob formation, spout overflow, tin bath spreading of the ribbon, overflow fusion and glass fiber forming, no

other software gives reliable solutions within acceptable calculation times. Glass Service and NOGRID started

co-operation on finding tuned and validated solutions with FPM as the basic solver for these special applications

as already has been done for axi-symmetric container

forming and 3D complex flaconage forming in close

cooperation with its respective partners COMPASS

(Spain) and Dassault Systemes Simulia BV (Abaqus

Netherlands).

Besides the technical solutions and know-how, the wide

customer network of Glass Service will allow us to

introduce new glass forming modeling products into the

worldwide glass market in an efficient way, with

minimum costs for marketing new solutions.

For more information please contact:

Josef Chmelar, GS (josef.chmelar@gsl.cz)

Erik Muijsenberg, GS (erik.muijsenberg@gsbv.nl)

Alfons Moeller, NOGRID (alfons.moeller@nogrid.de)

Glass Service and The Float Glass Consortium (FGC)announce new joint project to develop a unique intelligent

system to manage the float bath operation and

environment „FLOAT BATH EXPERT“

glass

By David Woodward (FGC) and Josef Chmelar

FGC is a fully independent company with the depth and breadth of design,

construction and operating expertise, experience and resources who can

offer a full turnkey package for high capability flat glass lines based on

objective assessment and independent experience, and incorporating the latest technology and operating

procedures, drawn from the best equipment and suppliers that are available worldwide. Senior FGC personnel

have an average of 35 years experience designing, building and operating float glass plants around the world.

Glass Service has installed more than 80 advanced control solutions and

Expert System ES III™ (ES III™) in glass plants worldwide until 2009. Our

main areas in glass production are:

– Float and Sheet Glass

– Solar Glass

– Composite Fiber

Simulation of the tweel, spout, lip and bath area

– Insulation Fiber

– Container glass

– Specialty Glasses

5

This market leadership has given GS extensive experience in application of the control strategy proving concept of

ESIII resulting in clear benefits to glass production efficiency.

The float bath expert system (FBE) is a software system that analyses actual float bath operation - including lehr

speed, top roll set up, bath symmetry, bath chemistry environment, temperature, ribbon thickness contour and

other important operating parameters-using the latest state-of-the-art numerical methods.

FBE compares ideal bath operation settings for each product against actual settings and computes recommended

changes to achieve improved product quality and yield.

For more information please contact:

David Woodward, FGC (d.woodward@thefloatglassconsortium.com)

Josef Chmelar, GS (josef.chmelar@gsl.cz)

By Petr Vojtech

As reported in GS GlassNews No 1, Glass Service and STG have

formed a new joint venture FlammaTec Ltd.

The newly established venture decided to combine state-of-the-art modeling technology experience with glass

furnace technology, sensors and advanced furnace control knowledge. Using this comprehensive knowledge it

was possible to design combustion solutions for improved glass quality, fuel efficiency, and stricter

environmental control.

FLAMMATEC – New Combustion Technology for Glass Furnaces

glass

Example of the user interface Tin Bath Expert

Glass Service, Inc.

Editing board: E. Muijsenberg, J. Chovancova, J. Schachlova

Rokytnice 60, 75501 Vsetin, Czech Republic

T: +420 571 498 511, F: +420 571 498 599 , info@gsl.cz

An extensive R&D program resulted in new

types of flexible gas burners for application in

regenerative furnaces. This new technology

has already been successfully installed on

container end port furnaces, float tanks and

tableware melters.

An integral part of each application is

modeling of the burner design and its

performance inside the furnace.

For more information please contact:

Petr Vojtech, FlammaTec Ltd.

(petr.vojtech@flammatec.com)

glass

FT flame characteristic

Model of turbulence at the tip of the burner

6

THE EUROPEAN REGIONAL DEVELOPMENT FUND AND THE

MINISTRY OF INDUSTRY AND TRADE OF THE CZECH REPUBLIC

SUPPORT INVESTMENT IN YOUR FUTURE.