Economic Considerations of Wet Cooling Systems

Cooling System Costs Cooling System Performance 

Capital Cost Costs of basic system, condenser, circulating water piping, makeup pumps and blowdown facilities, and intake and discharge systems. Cooling Capacity System sizing, air-to-water surface contact, dry- and wet-bulb temperatures for relative humidity, wind speed and direction, range and approach. 

Annual Fixed Charges Interest, amortization of the system capital costs, interim replacement, insurance and taxes.. Overall Performance Accounting for condenser and turbine characteristics. 

Annual Operation and Maintenance Amount of generation, fuel consumption, payroll, labor, overhaul and parts replacement. Reliability Performance of cooling systems under various operations and climatic conditions. 

Capability Penalties The amount paid for each kilowatt of additional capacity when the unit is unable to produce its required capability (measured at the maximum summer wet-bulb temperature and peak demand periods).  

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