IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > GET RESULTS > Overall Plant >

Plant Performance

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The Plant Performance result screen displays performance results for the plant as a whole. Heat rates and power in and out of the plant are given in a two table format.

The table on the left is standard for a Plant Performance result screen. The table on the right, Plant Electricity Requirements, provides a breakdown of the internal power consumption for the individual technology areas. These are all given in units of megawatts. Individual plant sub-components will only be displayed when they are configured on the Plant Design screen. The following results are shown in the table on the right:

•Gross Electrical Output: This is the gross output of the generator in megawatts (MWg). The value does not include auxiliary power requirements. The model uses this information to calculate key mass flow rates. The value is a parameter on the Overall Plant Performance parameter screen.

•Auxiliary Power Produced: (Only shown for Oxyfuel or a CO2 capture system with an option for an auxiliary boiler.) For oxyfuel systems, this is based on the Air Separation Unit (ASU) and Flue Gas Recycle (FGR) cooling duty recovered as heat integration. For all other systems, this is the additional power produced by the auxiliary boiler, or zero if no auxiliary boiler is configured.

•Component Electrical Uses: Power used by various plant and pollution control equipment is reported in the middle portion of the second column. The number displayed varies as a function of the components configured in the power plant. Electrical use for the following components will be displayed as applicable:

•Air Separation (a component of oxyfuel systems)

•Base Plant

•In-Furnace NOx

•Hot-Side SCR

•Fabric Filter

•Cold-Side ESP

•Wet FGD

•Spray Dryer

•Activated Carbon Injection

•CO2 Capture System

•FG Recycle/Purification (oxyfuel)

•Secondary Fabric Filter (a component of some oxyfuel systems)

•Cooling Tower

•Air Cooled Condenser

•Wastewater Plant

•Net Electrical Output: This is the net plant capacity, which is the gross plant capacity plus any auxiliary electrical output minus the losses due to plant equipment and pollution equipment (energy penalties). This is the same value shown in the first row of the left table.

•Amine Steam Use (Elec. Equiv.): (Only shown when an amine-based CO2 capture system is in use without an auxiliary boiler.) This is the electrical equivalent energy for the regeneration steam required by the CO2 capture system. It is taken from the steam cycle.