ストーカ式ごみ焼却炉のハイブリッド燃焼制御システム(機械力学,計測,自動制御)

概要

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The purpose of this work is to develop a new automatic combustion control (ACC) system that increases the stability of steam flow from an associated boiler and reduces both CO and NO_x concentrations in the exhaust gas discharged from a municipal refuse incinerator. A simulation model based on heat and material balances of the refuse material and exhaust gas was developed in order to design the control system for stabilizing steam flow rate. It was found that manipulation of the cooling air flow rate is important because it affects the gas mixing temperature and the O_2, NO_x and CO concentrations in the exhaust gas. The control system consists of a controller that stabilizes steam flow rate and inner temperature based on a simulation model, and a controller that uses fuzzy logic to regulate cooling air to reduce CO and NO_x concentrations. This system was applied to an incineration plant in actual service. The results indicated good control performance because the CO and NO_x concentrations were kept low, and fluctuations of the steam flow rate were reduced.
社団法人日本機械学会の論文
1997-04-25