3. The effective height of the stack of a power plant is 125 ft. The plant burns 5 ton of lignite (a low-grade coal) per hour; the lignite has a sulfur content of 1.5%. Wind speed is 6 m/sec, and the Pasquill- Gifford stability category may be taken as D. Calculate the rate of chemical emission as follows: Q= (5 ton lignite/hr) (0.015 ton S/1 ton lignite) (907kg S /1 ton S)(1 mol S)/(32 x 10 kg S)(1 mol SO2/ 1mol S) (64g So:/(1mol SO;) a. Estimate vertical and lateral plume dimensions at a distance 500 m downwind, and at a distance 5 km downwind. b. Estimate steady-state SO, concentration in a shopping district 5 km downwind.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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3. The effective height of the stack of a power plant is 125 ft. The plant burns 5 ton of lignite (a low-grade coal) per
hour; the lignite has a sulfur content of 1.5%. Wind speed is 6 m/sec, and the Pasquill- Gifford stability category may be
taken as D. Calculate the rate of chemical emission as follows:
Q = (5 ton lignite/hr) (0.015 ton S/1 ton lignite) (907kg S /1 ton S)((1 mol S)/(32 x 10 kg S))(1 mol SO2/ 1mol S) (648
So:)/(1mol SO2)
a. Estimate vertical and lateral plume dimensions at a distance 500 m downwind, and at a distance 5 km
downwind.
b. Estimate steady-state SO, concentration in a shopping district 5 km downwind.
Transcribed Image Text:3. The effective height of the stack of a power plant is 125 ft. The plant burns 5 ton of lignite (a low-grade coal) per hour; the lignite has a sulfur content of 1.5%. Wind speed is 6 m/sec, and the Pasquill- Gifford stability category may be taken as D. Calculate the rate of chemical emission as follows: Q = (5 ton lignite/hr) (0.015 ton S/1 ton lignite) (907kg S /1 ton S)((1 mol S)/(32 x 10 kg S))(1 mol SO2/ 1mol S) (648 So:)/(1mol SO2) a. Estimate vertical and lateral plume dimensions at a distance 500 m downwind, and at a distance 5 km downwind. b. Estimate steady-state SO, concentration in a shopping district 5 km downwind.
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