TVA exceeds CAAA NO{sub x} requirements
- United Energy Services Corp., Marietta, GA (United States)
- Ultramax Corp., Cincinnati, OH (United States)
This article describes how a utility reduced NO{sub x} and improved boiler performance using sequential process optimization software. Many utilities are endeavoring now to reduce NO{sub x} emissions as they look with apprehension toward January 1, 2000, the effective date for Phase 2 of the Clean Air Act Amendments (CAAA). At the Tennessee Valley Authority`s (TVA) Johnsonville Fossil Plant, plant managers wanted to update their 1950`s-vintage coal-fired units with low-NO{sub x} burners to comply with the Phase 2 NO{sub x} limitations. With limited capital available to replace existing burners, managers realized that nay low-NO{sub x} solution should not only be effective for minimizing NO{sub x} emissions, but should also offer opportunities for improved thermal performance leading to cost savings and a rapid return on investment. Guided by these objectives, the field services group of the TVA`s clean air project investigated several options to reduce emissions at the lowest cost. The group decided to use a new technology, co-developed by the Electric Power Research Institute and Ultramax Corp., called sequential process optimization. Application of sequential process optimization makes possible immediate reductions in NO{sub x} while maintaining heat rate and causing no adverse effect on other thermal or emissions parameters.
- OSTI ID:
- 103660
- Journal Information:
- Power Engineering (Barrington), Vol. 99, Issue 8; Other Information: PBD: Aug 1995
- Country of Publication:
- United States
- Language:
- English
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