IECM 12.0 beta User Manual
IECM 12.0 beta User Manual

 

The Auxiliary Boiler Diagram result screen shows the major flows into and out of the auxiliary boiler in PC and NGCC plants:


PC: GET RESULTS: CO2 Control: 2. Auxiliary Boiler System: Auxiliary Boiler Diagram

The following values are shown:

Area 1: Air and Fuel:

1a: Air In: The mass flow rate of fresh air is provided. 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 the heat necessary to provide regeneration heat to the sorbent regenerator.

Area 2: Steam and Power Generation:

Steam Supply: This is the total steam energy required by the CO2 regenerator. The steam is supplied to the sorbent regenerator.

Electricity: Low pressure steam generated by the auxiliary boiler may be used to generate electricity in a steam turbine. This electricity supplements that produced by the base plant.

Area 3: Flue Gas Exiting Aux. Boiler System:

CO2: This is the emission rate of carbon dioxide from the auxiliary boiler. It is emitted from a secondary stack.

Equivalent SO2: This is the emission rate of sulfur dioxide from the auxiliary boiler. It is emitted from a secondary stack.

Equivalent NO2: This is the emission rate of nitrogen dioxide from the auxiliary boiler. It is emitted from a secondary stack.

Flue Gas Out: This is the mass flow rate of flue gas exiting the auxiliary boiler. It is emitted from a secondary stack.


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