Wet flue gas desulfurization (WFGD) systems are being added to existing coal-fired power plants and installed in new plants to meet various federal and state emission standards. The lower flue gas temperature in power plants with WFGD increases corrosion concerns for chimney lining materials, leading to increased use of fiberglass-reinforced plastic (FRP) liners. This article explores the design and construction of FRP liners and concrete chimneys, how they relate to each other, and the factors affecting decisions made during the design and installation processes.
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