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양제복(J. B. Yang),김원배(W. B. Kim),노동순(D. S. Noh),동상근(S.K. Dong) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.3
High temperature preheated and diluted air combustion has been developed as the technology to realize higher thermal efficiency. In this type of combustion, there are many interesting phenomena which cannot be observed m room temperture air combustion. The chracteristics of the combustion, investigated using a 6,000 ㎉/h kerosine-fired test facility, are described. The flame is demonstrated to have a blue and green in color and has a large volume. As the preheated air temperature increased up to 1000℃, the NOx emission incrased exponentially over a few hundred ppm with 11% O₂ correction. But, it drastically reduced about 20ppm when the air was diluted from 21% O₂ to 9% O₂.