Swirl gutters for isolating flow fields for combustion enhanceme

Details Swirl gutters for isolating flow fields for combustion enhanceme Swirl gutters for isolating flow fields for combustion enhanceme

1992-03-16

1993-12-07

Price, Carl D.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431 8, 431183, 431187, 60737, 60748, 60749, F23C 700

Patent

active

052678512

ABSTRACT:
A combustor includes inner and outer arrays of generally Vee-shaped, radially extending, circumferentially spaced gutters canted in a circumferential direction relative to one another to produce isolated concentric counter-rotating circumferentially directed flows downstream of the gutters. A lean premixed combustion mode is used at baseload operations. At non-baseload operations, particularly low-load operating conditions, a diffusion combustion mode is employed by direct fuel injection into air supplied to one of the isolated flow fields, preferably the radially inner flow field, to produce a stabilized, locally hotter flame, resulting in higher combustion efficiency and lower emissions than otherwise using a lean premixed combustion mode at the non-baseload operating conditions.

REFERENCES:
patent: 1102510 (1914-07-01), Irish
patent: 2587140 (1952-02-01), Gorshkoff
patent: 3031012 (1962-04-01), Brola
patent: 3605405 (1971-09-01), DuBelle et al.
patent: 3703259 (1972-11-01), Sturgess et al.
patent: 3713588 (1973-01-01), Sharpe
patent: 3937011 (1976-02-01), Caruel et al.
patent: 5095696 (1992-03-01), Gulati et al.

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