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4 cards from this section. Quick, good the night before a test.
What is building downwash?
Consider how airflow interacts with obstacles.
Why is the height of the stack important?
Think about where pollutants go when they're released.
What is the primary concern of building downwash?
Focus on the impact of building shapes on airflow.
True or False: A stack's gas velocity should be less than the wind speed to ensure proper dispersion.
Remember the required velocity mentioned in class.
A city building has a stack that releases pollutants at a height of 10 meters. If the building is 8 meters tall, calculate if the current stack height is sufficient under average wind conditions of 2 m/s. Determine if the stack velocity meets standards.
Check if the stack reaches high enough and if the velocity is adequate.
Assess how modifications to relief vents on a building can improve overall air quality. Consider the effects of building downwash in your solution.
Think of how airflow needs to move through and around buildings.
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