Soft Sensor and Internal Model Control of Heating Furnace Thermal Efficiency

For the control of heating furnace thermal efficiency,the key problem is to find the online reliable and effective estimation of thermal efficiency.After analyzing the combustion mechanism deeply,this paper proposes a novel method for the online estimation of thermal efficiency based on temperature only.Based on the soft sensor model,an internal model control system of heating furnace thermal efficiency is given.The field applications show that the control system is accurate and reliable.