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Ventilation & Air Conditioning (HVAC) is used to monitor and control the internal environment of a building (temperature, humidity and air quality). HVAC systems comprise multiple components such as Air Handling Unit (AHU), Chillers, air heaters, chilled beams and fans. These components are then controlled by the buildings management system (BMS).
The HVAC system’s purpose is to maintain optimal temperatures for its occupants, cooling in the summer and heating in the winter, whilst providing fresh clean air which is important for human health and productivity.
Fans move the air through the system's ductwork to different areas and is why we are called Woods Air Movement; this is our primary focus.
Exhaust fans are used to remove stale or humid air from the building. Exhaust fans are typically located in the bathrooms, kitchens and other high humidity areas of the building to remove moisture, odours and smoke. They help to maintain good indoor air quality and help to prevent mould growth.
Axial fans are typically used to provide ventilation for large spaces such as factories, warehouses, and commercial buildings. They can be used to supply fresh air into the building, or to exhaust stale air or even smoke (if suitably rated and part of a fires safety system).
When used as supply fans, axial fans pull in fresh outdoor air and distribute it throughout the building via ductwork. This helps to ensure that the indoor air is not too stale, which can lead to indoor air pollution, and maintain good indoor air quality and proper ventilation.
When used as exhaust fans, axial fans draw out stale indoor air from the building and vent it outside. This can help to remove pollutants, odours and excess moisture that can accumulate in the building, which can help to prevent mould growth, reduce energy costs and improve the comfort of the building's inhabitants.
Axial fans are very efficient and require less space than other types of fans (such as centrifugal fans), making them well-suited for use in buildings with limited space. Axial fans can range in size from very small (think car ventilation) to meters in diameter (tunnel ventilation fans). Axial fans are typically powered direct drive by an electric motor although in some countries and applications belt drives might be used, and they are available in low-pressure or high-pressure models.