The addition of Wet Flue Gas Desulphurization (WFGD) systems to existing coal fired power plants,
and at several new plants, has resulted in the installation of over 90 FRP chimney liners in concrete
chimneys during the past 6 years. The lower flue gas temperatures in power plants with WFGD
increases corrosion concerns for chimney lining materials and often leads to the selection of FRP as
the liner material of choice. Although the design and manufacture of the FRP liner is usually performed
by a specialty FRP supplier, the integration of the liner into the overall chimney design and
arrangement, and the prescription of many of the requirements for the design of the FRP liner are the
responsibility of the chimney supplier. This paper explores various features of FRP liners and
chimneys, how they relate to each other and the factors affecting decisions made during the design and
installation process. Proper, timely coordination and communication between the chimney supplier and
the FRP liner supplier generally results in a well-designed and successful chimney project.
Key words: chimney liner, FRP, concrete chimney, flue gas desulphurization