Sootblowing system with identification of model parameters

Details Sootblowing system with identification of model parameters Sootblowing system with identification of model parameters

G - Physics

01

L

122/1

G01L 3/26 (2006.01) F22B 37/56 (2006.01)

Patent

CA 1229533

SOOTBLOWING SYSTEM WITH IDENTIFICATION OF MODEL PARAMETERS ABSTRACT OF THE DISCLOSURE A method of identifying a parameter of a model for a rate of loss of boiler efficiency due to a soot- blowing operation, in a boiler having a plurality of heat traps, comprises measuring a time since a last sootblowing operation in the heat trap in question, measuring an overall boiler efficiency at the beginning of sootblowing for the heat trap in question, measuring a change in efficiency due to the sootblowing operation and calculating the parameter using an equation. According to the equation, the ratio of efficiency change over overall boiler efficiency equals the time factor since the last sootblowing operation times the parameter minus a summation of factors for each of the other heat traps and their associated sootblowing operations. The technique is extendable to individual sootblowers within a heat trap by using fouling rate index rather than overall boiler efficiency.

466713

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