Fuel Air Master For Air Combustion

Fuel Air Master demand get input signal from Boiler Master demand. This was set beginning by coal characteristic that will be used, for example bituminous coal which has coal heating value around 24,697 kJ/kg as blue color. That is using as SV (set value) for the Fuel Air Master PID control.

And the yellow color tell about Excess Air program from Boiler Master Demand 200MW to 720 MW. The output set value for 200MW around 44% and for 720MW around 13%.


















Operator can do increase or decrease the excess air program from the bias by feedback from actual gas analyzer.

The output from PID control is giving to each Pulverize Group Control input signal. 100% is linearly with 70T/h.


















These two picture below are describing Fuel Air Master Program as input for Primary Air Flow Demand. For example, 72.08% Fuel Air Master has output 86.04% Primary Air Flow demand equal to 92.92 T/h.


































These two picture below are describing Fuel Air Master Program as input for Secondary Air Flow Demand. For example, 73.21% (after add with excess air program and assumed Fuel Air Combustion Correction is zero) Fuel Air Master has output 77.14% Secondary Air Flow demand equal to 273 T/h.

































This table can be read that secondary air flow demand with Fuel Air Master 72.08% is 304.67 T/h. It means Fuel Air Combustion Correction is 37.67 T/h


















These three pictures below are describe Fuel Air Master for Air Combustion completely.