What are the key differences between active and passive chilled beams?

Active chilled beams have a built-in fan to distribute cooled air, whereas passive chilled beams rely on natural convection to circulate cooled air. Active chilled beams typically have higher cooling capacities and are more suitable for high-heat-gain spaces, while passive chilled beams are often used in spaces with lower cooling demands. The selection between active and passive chilled beams depends on the specific application, space layout, and cooling requirements.