Energy Assessment Protocol for Glass Furnaces

Abstract

The Department of Energy funded development of a methodology that could be used by glass producers to increase furnace efficiency, and that could serve as a model for other energy-intensive industries. Accordingly, a team comprising PPG Industries, Eclipse, and DIAL at Mississippi State University developed and demonstrated the use of an energy assessment protocol for oxy-fuel fired glass furnaces. The protocol identifies potential opportunities for energy savings, based on a structured evaluation of the operating furnace, and then confirms the effectiveness of any changes made. Application of the protocol resulted in a 10% improvement in energy transfer into the glass or a 2.6% energy improvement in overall furnace efficiency. It is estimated that energy savings of at least 6% could result if all of the recommendations arising from use of the protocol are implemented, resulting in cost savings of greater than $200,000 per year.