article posted 19 Jan 2016
Doktor degree in 1985 in glass science, Technical University of Clausthal, Germany,
Institute for Glass, Ceramics and Bonding Materials
From 1985 to 2001 General Manager at Schott Glas in Mainz, Germany.
Since 2001 Manager R&D in Nikolaus Sorg, Lohr Germany.
Since 1985 various publications, oral contributions and patent applications
Realization of the Sorg ARD regenerative chamber design
Dr Matthias Lindig* & Thomas Breitfelder
Nikolaus Sorg GmbH&CoKG, Lohr, Germany
The regenerative heating system for glass melting furnaces represents still
today the most energy efficient concept. The influence of the design features
like regenerator chamber dimensions and specifics of the packing is well understood
and state of the art.
In the context of capacity increase the melting is usually enlarged. Due to restrictions
of the building the regenerator chambers are not always enlarged in order to keep the
combustion air preheat temperature unchanged. Other boundaries may limit the expansion.
If the foundation does not allow increasing the height of the checker other solution
were considered like double chamber of addition of a secondary air preheating device.
All these alternative solutions imply disadvantages like investment cost increase,
reduction in life time.
Sorg has faced this problem and has invented a new regenerative chamber design
which allows an expansion without touching the footprint or the foundation of the
regenerative chamber. The new Sorg regenerative chamber design was developed
using CFD- modeling. With these modeling results advantages of the solution
appear like improved flow pattern of the flue gas in the chamber. The first realization
of this special regenerative design solution has been done in 2015. The first results
of the furnace operation conditions are promising and correspond with the expectations
based on the modeling investigation.