CICIND Dresden / October 2021 – Albert de Kreij, Hadek Protective Systems | Andreas Harling, Markus Rost, Constructure GmbH
Fossil fired power stations form the backbone of the power industry in most of the world’s countries. Due to increasingly strict government regulations in both developed and developing countries, the environmental impact of these power stations has to be ever further minimized. At the moment, it is customary for these power stations to be equipped with flue gas desulphurization (“FGD”) plants and the use of such FGD plants has a profound effect on power station chimneys, also. On the one hand, the operating conditions are becoming more aggressive due to low temperature, acid condensing operation. On the other hand, the height requirement for chimneys is reduced thanks to reduced emissions and pollutant ground level concentrations.
In their efforts to deal with the huge cost of FGD operation and other environmental regulations, power companies increasingly choose to construct new chimneys in accordance with the New Chimney Design (“NCD”), a design that eliminates the use of any internal flue and instead uses a slender concrete shell protected directly by a borosilicate glass block lining (“BGBL”). This paper discusses, how power companies can specify the technical properties and requirements for NCD chimneys to ensure that these are constructed in a safe, reliable and durable manner.
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