Furnaces – Process – Incinerating refuse
Patent
1993-10-07
1994-11-08
Bennet, Henry A.
Furnaces
Process
Incinerating refuse
110181, 110191, 431 1, 431114, F23C 1104
Patent
active
053617100
ABSTRACT:
An improved method and apparatus for actively controlling a combustion process such as a waste incinerator by means of a spatial and temporal synchronized injection of fuel. The improved method and apparatus employs an active control system which controls the intentional formation of large scale, coherent vortices and the synchronized injection of the fuel supply at various locations relative to the formation of the vortices. The preferred apparatus comprises an actuator or similar structure that is adapted for producing and stabilizing discrete, large scale vortices in a combustion device. In addition, another device controls or modulates the injection of the fuel into the vortices at the optimal location and timing relative to the vortex cycle. As applied to an incinerator, this method can be optimized to ensures that the fuel and waste are introduced into the highest temperature locations, were extended residence times are obtained by trapping the fuel and waste inside the vortices. A high combustion efficiency may also be achieved by actively synchronizing the periodic fuel injection with the formation of the vortices.
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"Soot Formation in Turbulent Flames", E. Gutmark, T. P. Parr, D. M. Hansoarr and K. C. Schadow, Paper No. 92-70, 12-13, Oct. 1992.
Gutmark Ephraim
Hanson-Parr Donna M.
Parr Timothy P.
Schadow Klaus C.
Smith Robert A.
Bennet Henry A.
Doerrler William C.
Forrest, Jr. John L.
Hampsch Robert J.
Sliwka Melvin J.
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