| 摘要 |
<p>A method for effecting control over a radially stratified flame core burner (22) of the type installed in a fossil fuel-fired furnace comprising the steps of: a) determining the depth of the furnace in which the radially stratified flame core burner is installed; b) establishing the permissible length of the flame that the radially stratified flame core burner is capable of producing as a function of the depth of the fossil fuel-fired furnace in which the radially stratified furnace is installed; c) establishing an outer zone (24) of air flow as a consequence of the injection thereinto of a first portion of the total amount of air required to effect the combustion of the fossil fuel being burned through operation of the radially stratified flame core burner; d) establishing an inner zone (26) of air flow and fossil fuel as a consequence of the injection thereinto of a second portion of the total amount of air required to effect the combustion of the fossil fuel being burned through operation of the radially stratified flame core burner and as a consequence of the injection thereinto of the fossil fuel being burned through operation of the radially stratified flame core burner; and e) effecting control over the length of the flame produced by the radially stratified flame core burner by controlling the angular momentum of the air injected into the inner zone and by controlling the angle of injection of the fossil fuel injected into the inner zone so that the length of the flame produced by the radially stratified flame core burner is no greater than the permissible length of the flame that has been established for the fossil fuel-fired furnace in which the radially stratified flame core burner is installed.</p> |
