For an effective height of 150 m, an emission rate of 800 g/s, a wind speed of 8 m/s at stack height, and Class D stability. i- Calculate the downwind centerline ground‐level concentrations at the following distances: 500, 1000, 2000, 4000, 7000, 10,000, and 15,000 m. ii- Draw the profile of the ground level concentration over the x-axis distance. iii- Draw the plume standard deviation variation in y-dierction. iv- Draw the plume stanadar deviation variation in z-dierction. v- [Problem 19-11] Estimate the maximum downwind ground-level concentration (Cmax) and locate the distance at which it occurs (Xmax).
For an effective height of 150 m, an emission rate of 800 g/s, a wind speed of 8 m/s at stack height, and Class D stability. i- Calculate the downwind centerline ground‐level concentrations at the following distances: 500, 1000, 2000, 4000, 7000, 10,000, and 15,000 m. ii- Draw the profile of the ground level concentration over the x-axis distance. iii- Draw the plume standard deviation variation in y-dierction. iv- Draw the plume stanadar deviation variation in z-dierction. v- [Problem 19-11] Estimate the maximum downwind ground-level concentration (Cmax) and locate the distance at which it occurs (Xmax).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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For an effective height of 150 m, an emission rate of 800 g/s, a wind speed of 8 m/s at stack height, and Class D stability.
i- Calculate the downwind centerline ground‐level concentrations at the following distances: 500, 1000, 2000, 4000, 7000, 10,000, and 15,000 m.
ii- Draw the profile of the ground level concentration over the x-axis distance.
iii- Draw the plume standard deviation variation in y-dierction.
iv- Draw the plume stanadar deviation variation in z-dierction. v- [Problem 19-11] Estimate the maximum downwind ground-level concentration (Cmax) and locate the distance at which it occurs (Xmax).
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Step 1: Determine the given data.
VIEWStep 2: Determine the dispersion coefficient.
VIEWStep 3: Determine the ground level concentration.
VIEWStep 4: (ii) Plot the graph between concentration and horizontal distance.
VIEWStep 5: (iii) Plot the graph between standard deviation in y direction and horizontal distance.
VIEWStep 6: (iv) Plot the graph between standard deviation in z direction and horizontal distance.
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