The glass industry is very energy intensive and measures to save or recover energy is a key factor in the design of glass melting furnaces.
Glass Service has developed several technologies to save energy saving including the recovery of thermal energy from the waste gases using metal recuperators.
Metal recuperators are a simple and low cost investment for the recovery of waste heat and preheat the combustion air.
The Glass Service technology has developed two different recuperator type:
Temperature of combustion air preheating max 600°C
Easy maintenance and easy installation
Temperature of combustion air preheating max 800°C
External refractory shell can be used for several campaign
Both recuperators can be installed with either bottom/top waste gas flow or top/bottom flow.
The steel quality used is a function of the glass type to be melted and the fuel used (NG or heavy oil) as well as the pollutants in the fuel (e.g. Sulfur). Thanks to over 22 years experience designing and constructing metal recuperators for continuous use, the Glass Service, design plus the selection of the correct steel quality can guarantee a long recuperator life.
The fuel saving from recovering waste heat can be calculated as approximately 5% for each 100°C of combustion air preheat. Glass Service can calculate the specific fuel saving for each specific application.