Improving furnace performance by design and operation
One of the eff orts to strengthen the competitive power in challenging glass market conditions is to cut the cost of production by effi cient use of energy. Since the melting process consumes substantial amounts of energy, specifi c fuel consumption reduction through improving furnace design is high priority need. Proper furnace design with fine operational tuning can reduce energy consumption in a cost eff ective way while maintaining quality performance. All of this will create a positive impact on competitiveness performance in rapidly changing environment. This study investigated the role of each design parameter in the combustion space on energy consumption and bett er management of the temperature profi le in glass container furnaces. In order to have a bett er understanding of the combustion behaviour and hence furnace performance, the eff ect of crown height, port design, burner type and gas velocity, distance between burner and glass surface on flame form, temperature and velocity distributions was first evaluated individually for a container furnace. Interaction of the design parameter with others was examined by applying stepwise approach. After conducting extensive computations by the Şişecam Furnace Model and obtaining feedback from operational sites, it was well understood what role each design parameter plays in flame formation and the amount and distribution of energy transferred to the glass. More importantly, these parameters need to be optimized specifi cally for diff erent furnace sizes, specifi c melting rates and for diff erent production types. In a recently commissioned Şişecam container furnaces, an additional 7% energy reduction has been realized, 4% resulting from combustion space design improvements.
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Document Type: Research Article
Publication date: October 1, 2019