Combustion system for reduction of nitrogen oxides

Details Combustion system for reduction of nitrogen oxides Combustion system for reduction of nitrogen oxides

1993-10-05

1995-05-02

Price, Carl D.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431115, 431181, 431182, 431188, 431 10, 110262, 110264, F23D 100, F23D 1100

Patent

active

054113946

ABSTRACT:
Low NO.sub.x burners for the combustion of gaseous, liquid and solid fuels. The fluid dynamic principle of radial stratification by the combustion of swirling flow and a strong radial gradient of the gas density in the transverse direction to the axis of flow rotation is used to damp turbulence near the burner and hence to increase the residence time of the fuel-rich pyrolyzing mixture before mixing with the rest of the combustion air to effect complete combustion.

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Beer, J. M. et al., "Laminarization of Turbulent Flames in Rotating Environments", Combustion & Flame, vol. 16, 1971, pp. 39-45.
Emmons, H. W. et al., "The Fire Whirl", Eleventh Symposium on Combustion, The Combustion Institute, 1967, pp. 475-488.
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