Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1995-06-06
1997-02-25
Dority, Carroll B.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431 10, 431 76, 431 90, 60 3927, 60733, F23C 500
Patent
active
056054521
ABSTRACT:
A method and apparatus is disclosed for controlling staged combustion systems of the type used for combusting two reactants wherein at least one reactant is supplied as two flows, the first of which is combusted with the flow of the other reactant in a primary stage and the other of which is combusted with the exhaust of the primary stage in a secondary stage. In the present invention, the respective flows are monitored and controlled to provide a desired equivalence ratio for both the first stage and for the burner overall which is adaptable in response to variable input conditions. By controlling the flows in this way, a calculated energy output or adiabatic flame temperature can be produced. The present invention can also control the reactant flows to each stage in response to measured parameters such as flame temperature or emission levels. In this way, the flows can be varied in order to drive the measured parameters to a desired level.
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Homa John L.
Robertson Thomas F.
Dority Carroll B.
North American Manufacturing Company
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