Combustion apparatus and method

Details Combustion apparatus and method Combustion apparatus and method

1974-12-11

1976-05-04

Sprague, Kenneth W.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431115, 431252, F23M 900

Patent

active

039543820

ABSTRACT:
This invention relates to a combustion apparatus provided with a multiple of burners, a annular burner tile structure which is of rectangular section, combustion air passages along the major walls of the burner tile structure, and a series of air inlet holes or an air inlet slit for the purpose of introducing air into the burner tile structure to control the deflection of fuel stream.
The fuel injected into the burner tile structure at a velocity near to sonic velocity generates Coanda Effect and induces high temperature combustion gas into the burner tile structure from the combustor.
This high temperature combustion gas promotes endothermic gasification of fuel prior to the introduction of combustion air into the fuel stream so that complete and uniform combustion is performed under the existence of less combustion air as compared with the combustion in the conventional combustion apparatus, therefore, flame temperature is reduced and consequently, NOx generating rate is remarkably reduced.

REFERENCES:
patent: 1910735 (1933-05-01), Zikesch
patent: 1947741 (1934-02-01), Ryan
patent: 3101769 (1963-08-01), Zink et al.
patent: 3174527 (1965-03-01), Reed et al.
patent: 3425781 (1969-02-01), Bitterlich
patent: 3645095 (1972-02-01), Melconian
patent: 3876362 (1975-04-01), Hirose

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