Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1991-04-08
1992-10-27
Price, Carl D.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431353, 431352, F23C 604
Patent
active
051584450
ABSTRACT:
A method and apparatus for ultra-low pollutant emission combustion of fossil fuel is disclosed in which a first portion of fuel to be combusted is introduced into a primary combustion chamber together with primary combustion air, producing either a reducing or oxidizing combustion zone and a portion of water having a heat capacity equivalent to the heat capacity of a portion of primary combustion air. The first portion of fuel is combusted in the primary combustion chamber and the combustion products derived therefrom pass through an orifice into a secondary combustion chamber. Also introduced into the secondary combustion chamber is a second portion of fuel and secondary combustion air in an amount sufficient to complete combustion of the total amount of fuel in the apparatus. In addition, water is introduced into the secondary combustion chamber in an amount having a heat capacity equivalent to an amount of secondary combustion air. The products of combustion from the secondary combustion chamber are passed through an orifice into a dilution chamber into which dilution air is introduced, producing ultra-low pollutant emissions vitiated air. The vitiated air is subsequently discharged from the dilution chamber.
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Institute of Gas Technology
Price Carl D.
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