Control System Development and Demonstration to Improve Heat Storage Efficiency for Optimizing Steam Boiler Operation

To ensure competitive advantage in the steelworks industry, the operation of the steam boiler used during the production process must be optimized. The by-product gas generated in a steel mill is used as a raw material for the steam boiler. As the amount of heat generated by the boiler depends on the process and raw materials used, the varying properties of the by-product gas lead to significant fluctuations in the amount of steam produced. This study proposes a method for correcting the calorific value of the raw material input to the boiler for stable steam production through an equation; further, the effectiveness of the method is verified by applying the correction equation to actual boiler operation.