Calculation using Gaussian plume model equation
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29) A 200-MW power plant has a 100-m stack with raidus 2.5 m, flue gas exit velocity 13.5 m/s, and gas exit temperature 145 degrees Celsius. Ambient temperature is 15 degrees Celsius, windspeed at the stack is 5 m/s, and the atmosphere is stable, Class E, with a lapse rate of 5 C/km. if it emits 300 g/s of SO2, estimate the concentration at a ground level at a distance of 16 km directly downwind.
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Solution Summary
The expert provides calculation of concentration of a pollutant at ground level downwind from a source.
Solution Preview
This can be solved using the Gaussian plume model equation
C x = Q/(Πσyσzu)* e ^(-1/2) (H/σz) ^2 * e ^(-1/2) (y/σy)^2
Where Cx = ground level concentration at some distance x downwind (g/m3)
Q = average emission rate (g/sec)
u = mean wind speed (m/sec)
H = effective stack height (m)
σy = dispersion coefficient in the horizontal (m)
σz = dispersion ...
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