BUBBLE DIAGNOSIS (INTRODUCTORY TRAINING)

Bubbles and seeds are the most common causes of rejections in glass production. The course begins with the formation of bubbles during the batch-to-melt conversion and describes the many physical and chemical processes that lead to their composition, size, and removal from the melt. Gas sources downstream and bubble generation during container and float forming are also covered. The training concludes with a step-by-step method for managing a bubble upset.

Contents
• Batch decarbonization, bubble formation, and interaction with the glass melt
• Bubble ascent and glass flow velocities
• Gas solubility, chemical fining and refining
• Physical fining
• Reboil mechanisms
• Downstream sources of gases and forming bubbles
• Practical guidelines in case of bubble upset

After the training you will
• Have a step-by-step approach to detect and resolve bubble problems
• Understand the many origins of bubbles
• Comprehend the numerous chemical and physical phenomena that contribute to bubble removal
• Understand how experimental and numerical tools can help identify and resolve root causes in the event of a bubble crisis

Training methods
We offer a blended learning approach by mixing e-learning, lectures, open discussions, exercises, and case studies in teams or individually. The number of participants per course is between 8 and 20 to maximize your learning experience. Participants always receive the presentations and a training certificate.

Level of seniority
This training is meant for batch, furnace and quality team members who must deliver good quality glass, support and make decisions in case of a bubble upset. They will get a better understanding of the phenomenon at stake and sharper troubleshooting abilities.

Trainers

Penny Marson

Penny Marson studied Glass Science and Technology at Sheffield University. She worked in development and process improvement for TV and lighting glass applications at Philips. She joined CelSian in 2012 concentrating on glass melting projects in the lab. As a consultant, researcher and trainer, she loves the challenge to apply experimental work to assist manufacturers in improving their performance while decreasing their environmental footprint.

Cristian Hernández

Cristian Hernández graduated as a Materials Engineer from the University of Antioquia, Colombia. Then he obtained a Master’s degree in Metallurgical and Materials Science at the University of Sao Paulo, Brazil. He worked for 8 years as a Glass Science engineer at OI for different plants in South America, supporting them in color changes, glass quality issues, furnace and batch house ramp-ups, raw materials standardization and implementation of new ones. He joined Celsian as a Project leader acting as a supporter and technical advisor.

Johan Lotter

Johan Lotter obtained a master’s degree in chemical engineering from the University of the Witwatersrand. He worked at PFG building glass as a furnace engineer, technical expert, and manager of the technical department of two plants. He developed a large experience in raw materials, melting and floating process and defect analysis. He is now working as a CFD Engineer and trainer at CelSian.

BUBBLE DIAGNOSIS (INTRODUCTORY TRAINING)

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