Ductwork and chimney modifications for utilization of improved FGD scrubbing capacity
Conference
·
OSTI ID:376134
- Sargent and Lundy, Chicago, IL (United States)
- Tampa Electric Co., FL (United States)
Tampa Electric Company`s (TECO) Big Bend Station located southwest of Tampa, Florida, consists of four coal-fired units totaling 1,822 MW. The 475-MW Unit 4, which began operation in 1985, operates with a balanced draft system and is equipped with a wet limestone forced-oxidation flue gas desulfurization (FGD) system. Units 1 through 3, which operate with forced draft systems, are not equipped with FGD systems and, consequently, are subject to the Phase 1 Clean Air Act Amendments of 1990. TECO initiated studies to determine the most effective program for achieving environmental compliance for Units 1 through 3 and, based on these studies, developed an innovative idea for using the improved FGD scrubbing capacity of Unit 4 to treat the flue gas from Unit 3. On June 20, 1995, TECO successfully implemented this idea when it diverted Unit 3 flue gas to the Unit 4 scrubber. The project required modifications to the Unit 4 scrubber, as well as modifications to the draft system controls, ductwork, continuous emissions monitoring systems, and chimneys of both Units 3 and 4. The purpose of this paper is to describe the unique aspects of the ductwork and chimney modifications that were implemented on the project.
- OSTI ID:
- 376134
- Report Number(s):
- CONF-960426--
- Country of Publication:
- United States
- Language:
- English
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