Question

a point source gaussian plume model for a power plant uses 50 m as the effective stack height(see the figure below). the night is overcast. your concern is with ground-level pollution at twolocations, a and b, which are 1.2 and 1.4 km directly downwind from the stack.a) at what distance will the maximum concentration of pollution occur? which location (aor b) would have the higher level of pollution?b) suppose the sky clears up, and the windspeed stays less than 5 m/s. will the locationdownwind at which the maximum concentration occurs move? if so, will it move closer tothe stack of further away from the stack? (h remains at 50 m.)c) under the new conditions in part b, which house would experience the most polluti

Answer 1

In a point source Gaussian plume model, the maximum concentration of pollution occurs at a certain distance downwind. The location closer to the stack will have a higher level of pollution. If the sky clears up and the wind speed remains low, the location of maximum concentration will move further away from the stack. Without more information, it is not possible to determine which house would experience the most pollution.

Step-by-step explanation:

The maximum concentration of pollution in a point source Gaussian plume model for a power plant will occur at a certain distance downwind. To find this distance, we need to consider the effective stack height and the atmospheric conditions. In this case, the effective stack height is given as 50 m. The location with the higher level of pollution will be the one closer to the stack, which is location A in this case.

In part b, if the sky clears up and the wind speed stays less than 5 m/s, the location downwind at which the maximum concentration occurs will move. It will move further away from the stack. The effective stack height remains at 50 m, but the change in atmospheric conditions can affect the dispersion of pollution.

In part c, it is not specified which houses are being referred to, so it is not possible to determine which house would experience the most pollution without more information.