Passive Chilled Beams & Chilled Ceilings

By: Frenger Systems  05-Apr-2012
Keywords: Cooling, Chilled Beams, Passive Chilled Beams

The Carat unit is a passive “Radiant” chilled beam designed to be installed free-hanging from the soffit and positioned above a perforated metal ceiling system. Unlike traditional finned coil batteries, Carat uses both convective and “Radiant” principles to cool the space, offering exceptionally high levels of comfort. Furthermore, Carat offers effective cooling when used with ceiling tiles perforated to just 30% free area and hole sizes of just 3mm diameter. Frengers “Radiant chilled beam can be installed in an exposed situation (without ceiling) in a variety of different colours and can deliver cooling of 300 w/lm with low air velocities for compliance to ISO 7730 European standard for indoor climate comfort conditions due to it’s radiant quotient (where as convective only finned coil batteries are limited to 250 watts per linear meter even when positioned behind perforated metal ceilings to avoid dumping - this information can be found in the REVHA Guidelines and Chilled Beam Ceiling Association / BSRIA publication).

  • offers convective and "Radiant" cooling
  • operates above microperforated ceilings
  • can be installed in 250mm deep ceiling void
  • extremely easy to clean and maintain
  • very low air movement
  • not sensitive to position of heat sources
  • Accredited to EN 14518

Carat passive “Radiant” chilled beams are used where high cooling capacities are required whilst maintaining compliance to ISO 7730 comfort conditions and even allowing the most conventional ceiling aesthetic (as little as 30% open area and 3.0 mm diameter holes). The product is particularly suitable for use in offices and large public spaces.

Keywords: Chilled Beams, Cooling, Passive Chilled Beams

Other products and services from Frenger Systems


Frenger Systems :: Multiservice Chilled Beams, MSCBs

The concept also provides the specifier with a single source of responsibility for the design, supply and integration of all services, ensuring reduced costs and on-site time as all services are prefabricated offsite in a controlled environment and any site connections linking one MSCB to another is a simple matter of plug and play.


Frenger Systems :: Technical Facility

Product testing will establish the cooling or heating capacity of the individual product, however it makes no allowance for asymmetrical heat sources (hot or cold perimeter wall), temperature gradients in the space or the effect of the ventilation system. This will necessitate building a ‘mock up’ of the ceiling arrangement, together with the heating / cooling device, appropriate heat loads, lighting, solar gain, air delivery and air extraction.


Frenger Systems :: Active Chilled Beams

Where greater air volumes are being delivered Frenger’s Active Chilled Beam technology untilises patented air chamber design to generate a coanda effect within the chilled beam itself and variable air distribution patterns available such as a fan shape distribution to create a short air throw even with high air volumes.