Inventors:
Willis M. Hendricks - Gahanna OH
John J. Letcavits - Hilliard OH
Assignee:
AEP EmTech LLC - Columbus OH
International Classification:
F23D 100
US Classification:
110347, 110186, 110261, 431 12
Abstract:
A control system for providing improved control over the combustion process of a multiple-intertube pulverized-coal burner that commonly forms a portion of a roof-fired boiler. The system utilizes actual mass fuel flow measurements to calculate corrected, optimal secondary and interjectory air demands. The corrected secondary and interjectory air demands are used by a proportional and integral control loop to regulate the respective supply of secondary and interjectory air to the combustion process of each in-service burner. The control system allows for optimal combustion of the fuel and a reduction in NO emmissions.