Plume rise and dispersion : effects of exit velocity and atmospheric stability
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Plume rise and dispersion was studied under stable and neutral stratification in an environmentally controlled wind tunnel. A 1:300 model of a power plant stack was constructed and positioned in the wind tunnel to assess the effect of exit velocity and temperature on plume rise and dispersion. The complete test scenario for each stability included five exit velocities (from 12.5 to 250 m/s), three exit temperatures (200, 366 and 422°K) and three stratifications (D, E and F). The exit velocity was varied by adding nozzles of different diameter to the stack top while maintaining a constant volume ...