Direct heating surface combustor

Details Direct heating surface combustor Direct heating surface combustor

1976-07-26

1978-05-09

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

External-combustion engine type

431 7, 431 10, 431328, 60 3969R, F02C 722, F23D 1314

Patent

active

040879623

ABSTRACT:
A direct heating surface combustor is provided that utilizes a non-adiabatic flame to provide a low-emission combustion for gas turbines. A fuel-air mixture is directed through a porous wall, the other side of which serves as a combustion surface. A radiant heat sink disposed adjacent to and spaced from the combustion surface controls the combustor flame temperature in order to prevent the formation of oxides of nitrogen. A secondary air flow cools the heat sink. Additionally, up to 100% of secondary air flow is mixed with the combustion products at the direct heating surface combustor to dilute such products thereby reducing exit temperature. However, if less than 100% secondary air is mixed at the combustor, the remainder may be added to the combustion products further downstream.

REFERENCES:
patent: 822491 (1906-06-01), Tonkin
patent: 2879837 (1959-03-01), Downs
patent: 3161227 (1964-12-01), Goss et al.
patent: 3191659 (1965-06-01), Weiss
patent: 3199568 (1965-08-01), Baumanns et al.
patent: 3672839 (1972-06-01), Moore
patent: 3789805 (1974-02-01), Williams
patent: 3805763 (1974-04-01), Cowan
patent: 3899031 (1975-08-01), Laessig

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