強制振動燃焼の工業炉用バーナへの適用 : NO_χ低減効果の検証(熱工学,内燃機関,動力など)

概要

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Forced oscillating combustion can reduce nitrogen oxides (NO_χ) emission, as described previous researches. In this paper, in order to estimate the effect on NO_χ reduction, the concept is applied to two kinds of commercial burners for use in industrial furnaces. Natural gas is supplied through a set of solenoid valves, which are alternately made open and close at several times a second with various duty ratios, whereas preheated air from a recuperator is supplied at a fixed rate. Combustion products are sampled at the exit of recuperator and analyzed using a series of analyzers. It is found that about 30% reduction of NO_χ emission is realized by introducing forced oscillation combustion into two kinds of industrial burners, exclusive of an operation of long turbulent jet flame.
2002-11-25