IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > SET PARAMETERS > Base Plant >

Steam Cycle Performance

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The following parameters may be set on the Steam Cycle Performance parameter screen:

•Steam Energy Added in Boiler: The heat content of the steam changes as it moves throughout the steam turbines, reheaters, and superheaters. This parameter captures the average heat content of the steam, taking into consideration the heat lost in the cycle.

•Boiler Blowdown (% Recirculating Water): The boiler blowdown is a percent of the feedwater removed in order to reduce the suspended solids that have accumulated in the cooling water system.

•Miscellaneous Steam Losses (% Primary Steam Cycle): A small amount of steam is lost in the steam cycle.

•Demineralizer Underflow (% Demineralizer Inlet): The boiler makeup water is treated in a demineralizer. This parameter determines the amount of water in the underflow.

•Cooling Water Temperature Rise: (not shown when an Air Cooled Condenser is selected) This measures the increase in cooling water temperature after the once-through cooling water removes thermal energy from the exhaust steam.

•Auxiliary Heat Exchanger Load (% Primary Steam Cycle): The load on the auxiliary condenser is expressed as a percentage of the load on the primary condenser. This parameter determines the amount of recirculating cooling water used to extract heat from the auxiliary condenser.