Multi-stage combustion chamber for combustion of nitrogen-contai

Details Multi-stage combustion chamber for combustion of nitrogen-contai Multi-stage combustion chamber for combustion of nitrogen-contai

1991-01-22

1991-10-01

Dority, Carroll B.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431352, 60732, F23M 304

Patent

active

050529196

ABSTRACT:
Two-stage combustion of nitrogen-containing gas with low NO.sub.x emissions, in a combustion chamber, wherein first, pre-combustion is performed in a primary stage at an air number of approximately .lambda.=0.6 to 0.9 and subsequently post-combustion is performed in a secondary stage at an air number of approximately .lambda.=1.3 to 2, characterized in that in the primary stage, an inert substance is supplied via a multiplicity of openings in the walls of the primary stage, which substance cools the walls and keeps the combustion zone remote from the walls.

REFERENCES:
patent: 2636345 (1953-04-01), Zoller
patent: 2770097 (1956-11-01), Walker

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