Entrained water droplets carried away by circulating air in cooling towers are designated as____________________?
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Answer: A. Drift
Explanation
Drift specifically identifies liquid water droplets swept away by exhaust airflow fans. These droplets escape the packing section and are lost to the surrounding atmosphere. Controlling drift prevents water waste and minimizes environmental chemical dispersal. Cooling towers operate by evaporating a small portion of circulating cooling water. Mist eliminators use baffles to trap entrained droplets before they exit the tower stack. Drift loss is distinct from evaporative loss and deliberate basin blow down streams.
Modern cooling towers are equipped with high-efficiency drift eliminators to save water. Excessive drift can deposit dissolved mineral scales on nearby plant equipment and roadways. Environmental compliance audits regularly inspect cooling tower drift emission levels. Blow down is water purged from the basin to control dissolved solid concentrations. Vapor load represents the total gaseous flow rate passing upward through the tower. Ignoring standard definitions fails to recognize established cooling tower terminology.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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