Ventilation: Difference between revisions
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Ventilation is the | Ventilation is the exchange of indoor air with air from outdoors. | ||
== Why ventilation is needed? == | == Why ventilation is needed? == | ||
== Different ventilation types == | == Different ventilation types == | ||
Ventilation airflow is driven by pressure difference. Ventilation | Ventilation airflow is driven by pressure difference. Ventilation can be classified based on how the pressure difference is created: mechanically forced airflow or naturally induced airflow. | ||
=== Mechanical ventilation === | === Mechanical ventilation === |
Revision as of 12:38, 6 June 2024
Ventilation is the exchange of indoor air with air from outdoors.
Why ventilation is needed?
Different ventilation types
Ventilation airflow is driven by pressure difference. Ventilation can be classified based on how the pressure difference is created: mechanically forced airflow or naturally induced airflow.
Mechanical ventilation
Mechanical ventilation uses fans to control the amount of air supplied to the building.
Mechanical ventilation offers several key benefits. It allows for precise control over the amount of air entering a space, ensuring a consistent and adequate supply of outdoor air. Additionally, the air can be filtered, removing outdoor air pollutants, and the supply air temperature can be adjusted for optimal comfort. Furthermore, heat recovery systems can be integrated to conserve energy by transferring heat from outgoing air to incoming air.
While the initial setup and ongoing maintenance of mechanical ventilation may be more costly, its ability to maintain a reliable ventilation rate and ensure good indoor air quality makes it a worthwhile investment.
Natural ventilation
Natural ventilation is the process of air entering a building through openings like windows, doors, and vents. Natural ventilation is driven by natural forces (wind and buoyancy).
Because the airflow is not well controlled, it can often lead to insufficient ventilation rates. Furthermore, natural ventilation can be problematic in areas with high air pollution or old outdoor temperatures, as the incoming air is neither filtered nor conditioned.
Hybrid ventilation
Hybrid ventilation is a combination of mechanical and natural ventilation methods to manage airflow in buildings.