**Figure P32 Description: Gaussian Plume Model Illustration**This educational illustration demonstrates a point source Gaussian plume model for a power plant. The plume model uses an effective stack height of 50 meters. The scenario is set during an overcast night. The focus is on ground-level pollution at two locations, labeled A and B. These locations are situated 1.2 km and 1.4 km directly downwind from the stack, respectively.**Diagram Details:**- An industrial stack emits smoke, visualized as a plume dispersing into the atmosphere.- The height of the stack is marked as \( H = 50 \) m.- Two locations, A and B, are downwind at distances of 1.2 km and 1.4 km, respectively.- The sky is depicted with cloud cover, indicating an overcast night.**Questions for Exploration:**(a) **Concentration of Pollution:** - Determine at which distance the maximum pollution concentration occurs. - Identify which location (A or B) would experience higher pollution levels.(b) **Changes in Weather Conditions:** - If the sky clears and wind speed remains less than 5 m/s, analyze whether the location of maximum pollution concentration shifts. - Ascertain if it moves closer to or farther from the stack, maintaining \( H = 50 \) m.(c) **Impact of Changed Conditions:** - Under these new conditions, determine which house (A or B) would encounter the most pollution.

Consider the free body diagram of the system;

32 A point source Gaussian plume model for a power plant uses 50 m as the effective stack height (see Figure P32). The night is overcast. (Note: This is not the same as "cloudy" in this model; check the footnotes in Table 8.) Your concern is with ground-level pollution at two locations, A and B, which are 1.2 and 1.4 km directly downwind from the stack. Night, overcast H= 50 m A J JJJ JJ JJ Ji.. r. . 1.2 km 1.4 km FIGURE P32 (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 m/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?

32 A point source Gaussian plume model for a power plant uses 50 m as the effective stack height (see Figure P32). The night is overcast. (Note: This is not the same as "cloudy" in this model; check the footnotes in Table 8.) Your concern is with ground-level pollution at two locations, A and B, which are 1.2 and 1.4 km directly downwind from the stack. Night, overcast H= 50 m A J JJJ JJ JJ Ji.. r. . 1.2 km 1.4 km FIGURE P32 (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 m/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?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

**Figure P32 Description: Gaussian Plume Model Illustration**

This educational illustration demonstrates a point source Gaussian plume model for a power plant. The plume model uses an effective stack height of 50 meters. The scenario is set during an overcast night. The focus is on ground-level pollution at two locations, labeled A and B. These locations are situated 1.2 km and 1.4 km directly downwind from the stack, respectively.

**Diagram Details:**

- An industrial stack emits smoke, visualized as a plume dispersing into the atmosphere.
- The height of the stack is marked as \( H = 50 \) m.
- Two locations, A and B, are downwind at distances of 1.2 km and 1.4 km, respectively.
- The sky is depicted with cloud cover, indicating an overcast night.

**Questions for Exploration:**

(a) **Concentration of Pollution:**
- Determine at which distance the maximum pollution concentration occurs.
- Identify which location (A or B) would experience higher pollution levels.

(b) **Changes in Weather Conditions:**
- If the sky clears and wind speed remains less than 5 m/s, analyze whether the location of maximum pollution concentration shifts.
- Ascertain if it moves closer to or farther from the stack, maintaining \( H = 50 \) m.

(c) **Impact of Changed Conditions:**
- Under these new conditions, determine which house (A or B) would encounter the most pollution.

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