Managing Heat in Buildings and Factories

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1. Exhaust fans

The source recommends industrial exhaust or farm fans to remove hot air collected beneath the roof. It describes this as a cost-effective method with a potential overall temperature reduction of 3–5°C and recommends positioning fans with the direction of natural airflow.

2. Evaporative coolers

For open or semi-open areas where air conditioning is unsuitable, evaporative coolers provide spot cooling through cooling pads. The source describes local cooling of 5–10°C with lower power consumption than air conditioning.

3. Supply-air ventilation

In addition to exhaust ventilation, clean supply air can create positive pressure and move dust and hot air outward through openings, improving the work environment.