The Nucla Circulating Fluidized-Bed Demonstration Project: A U.S. DOE post-project assessment
This report is a post-project assessment of the Nucla Circulating Fluidized-Bed (CFB) Demonstration Project, the second project to be completed in the DOE Clean Coal Technology Program. Nucla was the first successful utility repowering project in the US, increasing the capacity of the original power station from 36 MW(e) to 110 MW(e) and extending its life by 30 years. In the CFB boiler, combustion and desulfurization both take place in the fluidized bed. Calcium in the sorbent captures sulfur dioxide and the relatively low combustion temperatures limit NOx formation. Hot cyclones separate the larger particles from the gas and recirculates them to the lower zones of the combustion chambers. This continuous circulation of coal char and sorbent particles is the novel feature of CFB technology. This demonstration project significantly advanced the environmental, operational, and economic potential of atmospheric CFB technology, precipitating a large number of orders for atmospheric CFB equipment. By 1994, more than 200 atmospheric CFB boilers have been constructed worldwide. Although at least six CFB units have been operated, the Nucla project`s CFB database continues to be an important and unique resource for the design of yet larger atmospheric CFB systems. The post-project assessment report is an independent DOE appraisal of the success a completed project had in achieving its objectives and aiding in the commercialization of the demonstrated technology. The report also provides an assessment of the expected technical, environmental, and economic performance of the commercial version of the technology as well as an analysis of the commercial market.
- Research Organization:
- USDOE Morgantown Energy Technology Center (METC), WV (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 132684
- Report Number(s):
- DOE/METC-95/1019; ON: DE95009706; NC: NONE; TRN: AHC29529%%46
- Resource Relation:
- Other Information: PBD: Jun 1995
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
29 ENERGY PLANNING AND POLICY
COLORADO
FOSSIL-FUEL POWER PLANTS
FLUIDIZED BED BOILERS
RETROFITTING
PERFORMANCE
COMMERCIALIZATION
EVALUATION
DEMONSTRATION PROGRAMS
ATMOSPHERIC PRESSURE
CIRCULATING SYSTEMS
STAGED COMBUSTION
FLUIDIZED-BED COMBUSTION
COAL
SORBENT INJECTION PROCESSES
AIR POLLUTION ABATEMENT