Cost analysis of an ammonia dry cooling system with a Chicago Bridge and Iron peak-shaving system
The cost analysis of an all-dry ammonia cooling system operating in conjunction with a peak shaving system is presented. The peak shaving system utilizes the excess cooling capacity available at night to cool water to be used for supplemental cooling during the following day. Cooling costs of this system are compared with other proposed dry and dry/wet cooling schemes. Results of the analysis indicate that the proposed system has a substantial economic advantage when compared with an all-dry cooling system, appears to be competitive with wet/dry cooling systems using approx. 2 to 3% water, and demonstrates a clear economic advantage when compared to both dry and wet/dry concepts for a winter peaking utility where the excess generation is assumed to displace both base-loaded coal-fired power generation and oil-fired gas turbine peaking units. Further conclusions from the cost analysis are that: the primary cost components are fixed charges on capital and credit for excess generation; maintenance costs and compression energy costs are not a substantial component of cost, therefore, the availability of off-peak power for compression energy is not a critical question; and the results of the winter peaking utility analysis are dependent on utility-specific factors, particularly the demand curve. (LCL)
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA); Chicago Bridge and Iron Co., Oak Brook, IL (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5404760
- Report Number(s):
- PNL-SA-9176; CONF-811101-26; ON: DE82005989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200101* -- Fossil-Fueled Power Plants-- Cooling & Heat Transfer Equipment & Systems
AMMONIA
COMPARATIVE EVALUATIONS
COOLING SYSTEMS
COOLING TOWERS
ECONOMIC ANALYSIS
ECONOMICS
ENERGY STORAGE
ENERGY SYSTEMS
HEAT EXCHANGERS
HEAT STORAGE
HYDRIDES
HYDROGEN COMPOUNDS
MECHANICAL STRUCTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OPERATION
PEAKING POWER PLANTS
POWER PLANTS
STORAGE
THERMAL POWER PLANTS
TOWERS