Box Model for Steady-State Pollution Concentration
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A Power plant is the main point source of SO2 emissions for a 25 km2 area. Estimate the steady-state concentration of SO2 for this area from this point source given the following temperature data. Windspeed= 5km/hr. The concentration of SO2 is 111.1 g/s.
Height (in meters) Temperature (K)
0 300
500 294
1000 288
1500 300
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Solution Summary
Steady-state pollutant concentration is calculated using a box model with the aid of emission rate and windspeed data.
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A Power plant is the main point source of SO2 emissions for a 25 km2 area. Estimate the steady-state concentration of SO2 for this area from this point source given the following temperature data. Windspeed= 5km/hr. The concentration of SO2 is 111.1 g/s.
Height (in meters) Temperature (K)
0 300
500 294
1000 288
1500 300
The increase in temperature after the linear decrease causes an "inversion layer". (http://www.engin.umich.edu/labs/EAST/me589/gallery/CCAQ_f04/mixing_height_inv.htm) explains it well....
"Mixing Height and Inversions
The mixing height is the height of vertical mixing of air and suspended particles above the ground. This height is determined by the observation of the atmospheric temperature profile. A parcel of air rising from the surface of the Earth will rise at a given rate (called the dry-adiabatic lapse rate). ...
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