Mechanical Ventilation
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Types of Mechanical Ventilation Systems: There are various types of mechanical ventilation systems, including:
a. Exhaust Ventilation: This system uses exhaust fans to remove stale air from specific areas, such as bathrooms, kitchens, or utility rooms. The fans create negative pressure, which draws in fresh air from other parts of the building through natural openings or intake vents.
b. Supply Ventilation: This system introduces fresh outdoor air into the building through mechanical devices, such as fans or air handlers. The incoming air replaces the stale air and is distributed throughout the building, ensuring adequate ventilation and air exchange.
c. Balanced Ventilation: Balanced ventilation combines both exhaust and supply systems. It ensures a controlled airflow by mechanically extracting stale air while simultaneously introducing an equal amount of fresh air into the building.
d. Heat Recovery Ventilation (HRV) and Energy Recovery Ventilation (ERV): These systems use heat exchangers to recover the energy from the outgoing stale air and transfer it to the incoming fresh air. HRV systems transfer heat, while ERV systems transfer both heat and moisture, helping to maintain a comfortable indoor environment while improving energy efficiency.


