A point source Gaussian plume model for a power plant uses 50 m as the effective stack height (see below). The night is overcast. The overcast weather, as defined by the World Meteorological Organization, is the meteorological condition of clouds obscuring at least 95% of the sky. Your concern is with ground-level pollution at two locations, A and B, which are 1.2 and 1.4 km directly downwind from 2. the stack. Night, overcast H= 50 m 1.2 km 1.4 km (a) At what distance will the maximum concentration of pollution occur? Which location (A or B) would have the higher level of pollution? (b) Suppose the sky clears up, and the windspeed stays less than 5/s. Will the location downwind at which the maximum concentration occurs move? If so, will it move closer to the stack or further away from the stack? (H remains 50 m) (c) Under the new conditions in part b, which house would experience the most pollution?
A point source Gaussian plume model for a power plant uses 50 m as the effective stack height (see below). The night is overcast. The overcast weather, as defined by the World Meteorological Organization, is the meteorological condition of clouds obscuring at least 95% of the sky. Your concern is with ground-level pollution at two locations, A and B, which are 1.2 and 1.4 km directly downwind from 2. the stack. Night, overcast H= 50 m 1.2 km 1.4 km (a) At what distance will the maximum concentration of pollution occur? Which location (A or B) would have the higher level of pollution? (b) Suppose the sky clears up, and the windspeed stays less than 5/s. Will the location downwind at which the maximum concentration occurs move? If so, will it move closer to the stack or further away from the stack? (H remains 50 m) (c) Under the new conditions in part b, which house would experience the most pollution?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A point source Gaussian plume model for a power plant uses 50 m as the effective stack
height (see below). The night is overcast. The overcast weather, as defined by the World Meteorological
Organization, is the meteorological condition of clouds obscuring at least 95% of the sky. Your concern is
with ground-level pollution at two locations, A and B, which are 1.2 and 1.4 km directly downwind from
2.
the stack.
Night, overcast
H= 50 m
1.2 km
1.4 km
(a) At what distance will the maximum concentration of pollution occur? Which location (A or B) would
have the higher level of pollution?
(b) Suppose the sky clears up, and the windspeed stays less than 5/s. Will the location downwind at which
the maximum concentration occurs move? If so, will it move closer to the stack or further away from the
stack? (H remains 50 m)
(c) Under the new conditions in part b, which house would experience the most pollution?
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