Method and system for SNCR optimization

A system for controlling SNCR performance in a fossil fuel boiler, comprising:

• a controller input for receiving a performance goal for the boiler, and data on current boiler performance;
• a controller for determining whether the performance goal is satisfied by the current boiler performance, and when the performance goal is not satisfied, identifying the generally closest operating region in which the performance goal would be satisfied, the operating region being associated with desired operating parameters of one or more devices affecting SNCR performance, said controller also determining one or more control moves using the desired operating parameters of said one or more devices for directing the boiler to the operating region;
• and
• a controller output for communicating the one or more control moves to said one or more devices.

A computer program product, residing on a computer readable medium, for use in controlling SNCR performance in a fossil fuel boiler, the computer program product comprising instructions for causing a computer to:

• receive a performance goal for the boiler;
• receive data on current boiler performance;
• determine whether the performance goal is satisfied by the current boiler performance;
• when the performance goal is not satisfied, identify the generally closest operating region in which the performance goal would be satisfied, the operating region being associated with desired operating parameters of one or more devices affecting SNCR performance;
• determine one or more control moves using the desired operating parameters of said one or more devices for directing the boiler to the operating region;
• and
• communicate the one or more control moves to said one or more devices.