9 - 12 September 2024
14:00 - 17:30 CET
online and/or Eindhoven

Electricity will play a major role in the ongoing energy transition to reduce CO2 emissions. Although electric melting of glass is an old technology, many aspects have to be considered to create an efficient system that is suitable for each specific glass production.

This course focuses on electric melting in general, from the electrical grid down to the electrodes and finally into the melter. The objective of the course is to provide you with a pragmatic level of understanding of the whole melting system.


  • Electric melting, heat transfer, and energy
  • Purpose of electrical boosting, from sustainability to flexibility
  • Melting zone, barrier, throat, and feeder boosting
  • Electrode material, types, holder, and cooling systems
  • Positioning of electrodes (in and outside the furnace)
Sjoerd Stelwagen
Sjoerd Stelwagen studied Chemical Engineering at Eindhoven University of Technology. Directly after his study he started as a Technical Specialist at the Furnace department of Ardagh Glass in Dongen, The Netherlands, where he later became Batch and Furnace Manager. He then evolved as EHS manager for the Benelux plants. With more than 16 years of practical glass making experience, he joined Celsian in 2021 to work as a project manager and trainer.
Christian Räbiger
Christian Räbiger studied process engineering at the Technical University of Freiberg, specializing in glass, ceramics, and building materials. He joined the technology department of Sorg for 8 years where he designed, modeled, and optimized multiple glass furnaces to improve the energy demand and production quality. He also offered troubleshooting and technical support. He then moved to Swarco for 4 years. His activities included planning furnace reconstructions and new furnaces, R&D, and project work. In 2023, he joined CelSian as technical director for the EU area.
Price The price per participant is 2.190 EUR. This is the equivalent of 4 tons of glass.

The 6th participant from the same company can join FOR FREE. Prices exclude tax and duties.
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