IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > GET RESULTS > CO2 Capture, Transport & Storage > 1. Ammonia System >

O&M Cost

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This is a standard O&M cost result screen. The ammonia system in PC and NGCC plants has the following variable cost components:

•Ammonia: This is the annual cost of ammonia used in the system. It is a function of the concentration of CO2 in the flue gas and the flue gas flow rate.

•Auxiliary Gas: If the user has added an auxiliary natural gas boiler, the cost of the natural gas used to fuel the boiler is added here.

•Reclaimer Waste Disposal: This is the reclaimer waste disposal cost per year.

•Electricity: The cost of electricity consumed by the ammonia system.

•Auxiliary Power Credit: An auxiliary natural gas boiler can be added by the user to provide steam and power for the ammonia system. If it is added by the user then the additional power it provides is subtracted from the overall operating and maintenance cost.

•Water: This is the annual cost for water to the ammonia system. It is mainly required for cooling and also as process makeup.

•CO2 Transport: The CO2 captured at the power plant site has to be carried to the appropriate storage/disposal site. Transport of CO2 to a storage site is assumed to be via pipeline. This is the annual cost of maintaining those pipelines.

•CO2 Storage: Once the CO2 is captured, it needs to be securely stored (sequestered). This cost is based on option chosen on the T&S Config parameter screen .

•Auxiliary CCS Cooling System: (Only shown when an Air Cooled Condenser is configured.) This is the cost of the auxiliary cooling system needed when an Air Cooled Condenser is used as the plant cooling system for a PC or NGCC plant.