Patent ID: 6045353
Filing Date: 2000-04-04
Classification: F23N

Abstract:
A method of monitoring operating conditions of a burner comprising the steps of:(a) monitoring flame radiation emission from a burner through a fiber optic attached to a spectrometer, the fiber optic positioned in the burner;(b) holding variables OC (optical collection system), OD (optical detector), O (oxidizer), F (fuel), B (burner characteristics), .rho. (process disturbances), and P (burner power) constant while varying S (combustion stoichiometry) to determine the emission intensity .GAMMA. as a function of stoichiometry S by measuring integrated OH emission intensity;(c) calculating constants A and B from a relationship of emission intensity .GAMMA. and stoichiometry S having a characteristic equation .GAMMA.=AS+B; and(d) monitoring stoichiometry S in real time using the equation ##EQU7##