This is the stoichiometric amount of air and excess air as specified on the Auxiliary Boiler Performance input screen . •1b: Auxiliary Gas In: This is the flow rate of natural gas necessary to provide ...

Mercury In: This is the mass flow rate of total mercury entering the boiler. The mass reflects the molecular weight of elemental mercury. •Area 2: Boiler Performance •Ash Ent. Flue Gas: Percent of the ...