Chilled beams are advanced HVAC systems designed to provide efficient temperature control in commercial and institutional buildings. They operate by utilizing water as the primary heat transfer medium, which allows for effective cooling and heating with minimal energy consumption. There are two main types of chilled beams: active chilled beams, which incorporate air supply from a ventilation system to enhance cooling and heating performance, and passive chilled beams, which rely on natural convection to distribute conditioned air.