aksiaalipuhaltimet

Aksiaalipuhaltimet, often referred to as axial fans, are a type of fan that moves fluid along the axis of the fan's rotation. This design contrasts with centrifugal fans, which move fluid outwards at a right angle to the axis of rotation. Axial fans typically consist of a propeller or a bladed rotor mounted on a shaft that is driven by a motor. The blades are shaped to create a pressure difference as they rotate, drawing the fluid in and pushing it out along the same direction.

The primary application of axial fans is in ventilation systems, where they are used to move large volumes of air. They are commonly found in HVAC systems for buildings, industrial settings for process cooling, and in automotive radiators to draw air through the cooling fins. Their efficiency in moving air at low pressures makes them suitable for these purposes.

Key components of an axial fan include the impeller, which consists of the blades, and the motor that drives the impeller's rotation. The number, shape, and angle of the blades are critical design factors that influence the fan's airflow rate, pressure capabilities, and efficiency. Some axial fans also incorporate guide vanes upstream or downstream of the impeller to straighten the airflow and improve performance.

Axial fans are appreciated for their compact design and relatively low noise levels compared to some other fan types, especially at high flow rates. However, they are generally less effective at generating high pressures. Their operation is based on the principle of lift, similar to how an airplane wing generates lift. As the blades rotate, they create a lower pressure area on one side and a higher pressure area on the other, causing the fluid to flow from the high-pressure to the low-pressure region.