Modelling Plume Rise and Dispersion of Power Plant Flue Gases Discharged Through Cooling Towers
Conventionally, treated flue gases of fossil-fueled thermal power plants are discharged through specially designed stacks in order to increase atmospheric dispersion. One of the innovative technologies involves the discharge through cooling towers instead of conventional tall stacks. The so-called “cooling tower discharge” (CTD) technology has proven to provide better dispersion of the power plant plume in the atmosphere (Schatzmann et al., 1984; Glamse et al., 1989; Ernst et al., 1986). Owing to its natural buoyancy and large heat content, the cooling tower plume mixed with the treated flue gas reaches considerably greater heights in the atmosphere. The CTD plume can even penetrate through the inversion layers (Ernst et al., 1986). The CTD technology, therefore lead a considerable decrease in the GLC values of pollutants by providing a better dispersion in the atmosphere (Ernst et al., 1986; Schatzmann et al., 1987).
KeywordsThermal Power Plant Cool Tower Atmospheric Dispersion Plume Rise Ground Level Concentration
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